@article {1070, title = {An Adaptive Method for Camera Attribution Under Complex Radial Distortion Corrections}, journal = {IEEE Transactions on Information Forensics and Security}, volume = {19}, year = {2024}, pages = {385-400}, keywords = {Adaptation models, adaptive processing, cameras, Distortion, distortion correction, Fingerprint recognition, forensics, Image forensics, Lenses, PCE, photo response non-uniformity, PRNU, radial correction, Smart phones, source attribution}, doi = {10.1109/TIFS.2023.3318933}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=10265255}, author = {Montibeller, Andrea and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {1060, title = {Multibeam Compact Dual Reflectarray Antenna for High-Throughput Satellites in Ka-Band}, booktitle = {18th European Conference on Antennas and Propagation}, year = {2024}, author = {Daniel Mart{\'\i}nez-de-Rioja and Eduardo Mart{\'\i}nez-de-Rioja and Y Rodr{\'\i}guez-Vaqueiro and A Pino and Carlos Mosquera and Jos{\'e} A. Encinar and Giovanni Toso} } @article {1055, title = {Contribution of non-orthogonal multiple access signalling to practical multibeam satellite deployments}, journal = {International Journal of Satellite Communications and Networking}, year = {2023}, doi = { https://doi.org/10.1002/sat.1492}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera} } @conference {1059, title = {Direction of Arrival Estimation with Hybrid Digital Analog Arrays: Algorithms and Ziv-Zakai Lower Bound}, booktitle = {Asilomar Conference on Signals, Systems, and Computers }, year = {2023}, author = {Miguel Rivas-Costa and Carlos Mosquera} } @conference {1072, title = {Exploiting PRNU and Linear Patterns in Forensic Camera Attribution under Complex Lens Distortion Correction}, booktitle = {ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2023}, pages = {1-5}, keywords = {Acoustic distortion, Camera Attribution, Camera Source Identification, cameras, forensics, GPU, Graphics processing units, interpolation, PRNU, Radial Distortion Correction, Reliability, Software}, doi = {10.1109/ICASSP49357.2023.10096605}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=10096605}, author = {Montibeller, Andrea and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {1069, title = {Information Forensics and Security: A quarter-century-long journey}, journal = {IEEE Signal Processing Magazine}, volume = {40}, year = {2023}, pages = {67-79}, keywords = {forensics, History, Information processing, Information security, Intellectual property, Machine Learning, privacy, Signal processing, Surveillance}, doi = {10.1109/MSP.2023.3275319}, url = {https://ieeexplore.ieee.org/document/10188887}, author = {Barni, Mauro and Campisi, Patrizio and Delp, Edward J. and Do{\"e}rr, Gwena{\"e}l and Fridrich, Jessica and Memon, Nasir and Fernando P{\'e}rez-Gonz{\'a}lez and Rocha, Anderson and Verdoliva, Luisa and Wu, Min} } @conference {1063, title = {Introducing the TRUMPET project: TRUstworthy Multi-site Privacy Enhancing Technologies}, booktitle = {IEEE International Conference on Cyber Security and Resilience (CSR)}, year = {2023}, pages = {604-611}, publisher = {IEEE}, organization = {IEEE}, address = {Venice, Italy}, isbn = {979-8-3503-1170-9}, doi = {https://doi.org/10.1109/CSR57506.2023.10224961}, author = {Alberto Pedrouzo-Ulloa and Jan Ramon and Fernando P{\'e}rez-Gonz{\'a}lez and Siyanna Lilova and Patrick Duflot and Zakaria Chihani and Nicola Gentili and Paola Ulivi and Mohammad Ashadul Hoque and Twaha Mukammel and Zeev Pritzker and Augustin Lemesle and Jaime Loureiro-Acu{\~n}a and Xavier Mart{\'\i}nez and Gonzalo Jim{\'e}nez-Balsa} } @article {1047, title = {Link Adaptation for Rate Splitting Systems with Partial CSIT}, journal = {IEEE Journal on Selected Areas in Communications}, year = {2023}, doi = {10.1109/JSAC.2023.3240787}, author = {Carlos Mosquera and Felipe G{\'o}mez-Cuba} } @conference {1058, title = {Overview of Use Cases in Single Channel Full Duplex Techniques for Satellite Communication}, booktitle = {40th International Communications Satellite Systems Conference (ICSSC)}, year = {2023}, author = {V{\'\i}ctor Monz{\'o}n Baeza and Carlos Mosquera and Roberto L{\'o}pez-Valcarce and JL Gonz{\'a}lez-R{\'\i}os and JA Vasquez-Peralvo and Tom{\'a}s Ram{\'\i}rez and P Losada and JC Merlano and S Chatzinotas and Steven Kisseleff} } @article {1068, title = {Source camera attribution via PRNU emphasis: Towards a generalized multiplicative model}, journal = {Signal Processing: Image Communication}, volume = {114}, year = {2023}, issn = {0923-5965}, doi = {https://doi.org/10.1016/j.image.2023.116944}, url = {https://www.sciencedirect.com/science/article/pii/S0923596523000267}, author = {Fern{\'a}ndez-Mendui{\~n}a, Samuel and Fernando P{\'e}rez-Gonz{\'a}lez and Miguel Masciopinto} } @conference {1031, title = {Contribution of NOMA Signalling to Practical Multibeam Satellite Deployments}, booktitle = {11th Advanced Satellite Multimedia Conference and 17th Signal Processing for Space Communications Workshop}, year = {2022}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera} } @conference {1026, title = {A Dynamic Codebook Design for Analog Beamforming in MIMO LEO Satellite Communications}, booktitle = {IEEE International Conference on Communications (ICC)}, year = {2022}, author = {Joan Palacios and Nuria Gonz{\'a}lez-Prelcic and Carlos Mosquera} } @article {1027, title = {Flexible User Mapping for Radio Resource Assignment in Advanced Satellite Payloads}, journal = {IEEE Transactions on Broadcasting}, year = {2022}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Nader Alagha} } @article {1024, title = {Full-duplex mmWave MIMO with finite-resolution phase shifters}, journal = {IEEE Trans. Wireless Communications}, volume = {21}, year = {2022}, month = {11/2022}, pages = {8979-8994}, abstract = {
Enabling simultaneous transmission and reception on the same carrier frequency, i.e., full-duplex (FD) communication, critically requires that the self-interference (SI) be sufficiently suppressed. We investigate the design of precoders and combiners for an FD millimeter wave point-to-point bidirectional link, where dense antenna arrays provide an opportunity for SI suppression via beamforming cancellation. In practice the precoders and combiners are usually implemented in a hybrid digital/analog fashion with a reduced number of radio frequency (RF) chains, and it becomes necessary to overcome a number of limitations imposed by this structure. We focus on a hybrid architecture with a phase shifter-based fully-connected analog stage, assuming finite-resolution phase shifters. To avoid analog-to-digital converter saturation at the receiver, the proposed design aims at cancelling SI at the analog combiner output. Although accurate SI suppression is difficult with low-resolution phase shifters, our design is able to provide reasonable performance, significantly improving upon previous approaches, and allowing to efficiently exploit the availability of RF chains to partially compensate for coarse phase quantization effects.
}, keywords = {full-duplex, mmWave, rodin}, issn = {1536-1276}, doi = {10.1109/TWC.2022.3171664}, author = {R. L{\'o}pez-Valcarce and M. Mart{\'\i}nez-Cotelo} } @conference {1071, title = {Gpu-Accelerated Sift-Aided Source Identification of Stabilized Videos}, booktitle = {2022 IEEE International Conference on Image Processing (ICIP)}, year = {2022}, pages = {2616-2620}, keywords = {Codes, Deep Learning, estimation, forensics, GPU, Graphics processing units, Image processing, PRNU, SIFT, Video Source Identification, Video Stabilization, Visualization}, doi = {10.1109/ICIP46576.2022.9897579}, url = {https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=9897579}, author = {Montibeller, Andrea and Pasquini, Cecilia and Boato, Giulia and Dell{\textquoteright}Anna, Stefano and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {996, title = {Analog beamforming for full-duplex mmWave communication with low-resolution phase shifters}, booktitle = {IEEE International Conference on Communications (ICC)}, year = {2021}, month = {06/2021}, address = {Montreal, Canada (Virtual event)}, abstract = {
Full-Duplex (FD) communication has been the object of recent attention, particularly in sub-6 GHz bands. By enabling in-band simultaneous transmission and reception, these techniques present great potential in terms of spectral efficiency, latency, and medium access flexibility, and their extension to millimeter wave (mmWave) bands can be expected to benefit similarly. The dense antenna arrays available in mmWave offer a large number of degrees of freedom which could be exploited towards self-interference (SI) mitigation in FD. However, analog beamforming architectures based on practical phase shifters make this task quite challenging due to the lack of amplitude
control and finite phase resolution. In this context, we consider a single-stream bidirectional point-to-point mmWave FD link, and develop a new analog beamforming design requiring a single radio frequency chain in each direction, explicitly taking into account such hardware-related constraints. Simulation results show that the proposed scheme significantly outperforms previous methods for practical phase shifter resolution values of a few bits.
}, keywords = {full-duplex, mmWave, rodin}, author = {R. L{\'o}pez-Valcarce and M. Mart{\'\i}nez-Cotelo} } @article {1008, title = {Editorial: Signal Processing for Beyond 5G Non-Terrestrial Networks}, journal = {Frontiers in Space Technologies}, volume = {2}, year = {2021}, issn = {2673-5075}, doi = {10.3389/frspt.2021.780171}, url = {https://www.frontiersin.org/articles/10.3389/frspt.2021.780171/full}, author = {Carlos Mosquera and Pantelis-Daniel Arapoglou} } @conference {1004, title = {Flexible Beam-User Mapping for Multibeam Satellites}, booktitle = {9th European Signal Processing Conference, EUSIPCO 2021}, year = {2021}, address = {Dublin, Irlanda}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Nader Alagha} } @article {1007, title = {A Hybrid Beamforming Design for Massive MIMO LEO Satellite Communications }, journal = {Frontiers in Space Technologies}, volume = {2}, year = {2021}, issn = {2673-5075}, doi = {10.3389/frspt.2021.696464}, url = {https://www.frontiersin.org/articles/10.3389/frspt.2021.696464/full}, author = {Joan Palacios and Nuria Gonz{\'a}lez-Prelcic and Carlos Mosquera and Takayuki Shimizu and Chang-Heng Wang} } @conference {1005, title = {Non-Orthogonal Transmission Under Flexible Illumination Patterns For Advanced Satellite Payloads}, booktitle = {38th International Communications Satellite Systems Conference (ICSSC),}, year = {2021}, address = {Washington DC, USA}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Nader Alagha} } @conference {1001, title = {A Review of "Camera Attribution Forensic Analyzer in the Encrypted Domain"}, booktitle = {VI Jornadas Nacionales de Investigaci{\'o}n en Ciberseguridad (JNIC)}, year = {2021}, publisher = {Ediciones de la Universidad de Castilla-La Mancha}, organization = {Ediciones de la Universidad de Castilla-La Mancha}, author = {Alberto Pedrouzo-Ulloa and Miguel Masciopinto and Juan Ram{\'o}n Troncoso-Pastoriza and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {997, title = {Space-Time Rate Splitting for the MISO BC with Magnitude CSIT}, journal = {IEEE Transactions on Communications}, year = {2021}, author = {Carlos Mosquera and Nele Noels and Tom{\'a}s Ram{\'\i}rez and M{\`a}rius Caus and Adriano Pastore} } @conference {990, title = {Energy-efficient analog beamforming with short packets in millimeter-wave MIMO systems}, booktitle = {2020 54th Asilomar Conference on Signals, Systems, and Computers, California, 2020}, year = {2020}, address = {Virtual event}, abstract = {
The energy-aware design of fully analog precoders and combiners is investigated in this paper. To that aim, we consider a millimeter-wave short-packet communication scenario where power consumption and hardware complexity constitute relevant factors. User terminals employ a single channel encoder and, at hardware level, they implement analog architectures that combine phase shifters and switches. Additionally, transmitting terminals also leverage a power control system. An energy efficiency figure of merit is considered, and its optimization subject to finite packet-length constraints is tackled cyclically over disconnected feasible sets. Numerical results are reported
firstly, to illustrate the advantages of the proposed short-packet fully analog design, secondly, to compare its performance to that of on-off beamforming, and finally, to discuss the optimality of the proposed optimization algorithm.
}, keywords = {mmWave, rodin}, author = {Jordi Borr{\`a}s and Francesc Molina and R. L{\'o}pez-Valcarce and Josep Sala} } @conference {989, title = {Full-Duplex mmWave Communication with Hybrid Precoding and Combining}, booktitle = {European Signal Processing Conference (EUSIPCO)}, year = {2020}, month = {08/2020}, address = {Amsterdam (Netherlands)}, abstract = {
We investigate the design of hybrid precoders and combiners for a millimeter wave (mmWave) point-to-point bidirectional link in which both nodes transmit and receive simultaneously and on the same carrier frequency. In such full-duplex configuration, mitigation of self-interference (SI) becomes critical. Large antenna arrays provide an opportunity for spatial SI suppression in mmWave. We assume a phase-shifter based, fully connected architecture for the analog part of the precoder and combiner. The proposed design, which aims at cancelling SI in the analog domain to avoid frontend saturation, significantly improves on the performance of previous approaches.
}, keywords = {full-duplex, mmWave, rodin, winter}, author = {R. L{\'o}pez-Valcarce and M. Mart{\'\i}nez-Cotelo} } @article {985, title = {Link Adaptation and SINR errors in Practical Multicast Multibeam Satellite Systems with Linear Precoding}, journal = {International Journal of Satellite Communications and Networking}, year = {2020}, keywords = {link adaptation, multi-beam satellite, precoding, satellite communications}, author = {Anxo Tato and Stefano Andrenacci and Eva Lagunas and Symeon Chatzinotas and Carlos Mosquera} } @article {984, title = {Neural Network Aided Computation of Mutual Information for Adaptation of Spatial Modulation}, journal = { IEEE Transactions on Communications}, year = {2020}, abstract = {

Index Modulations, in the form of Spatial Modulation or Polarized Modulation, are gaining traction for both satellite and terrestrial next generation communication systems. Adaptive Spatial Modulation based links are needed to fully exploit the transmission capacity of time-variant channels. The adaptation of code and/or modulation requires a real-time evaluation of the channel achievable rates. Some existing results in the literature present a computational complexity which scales quadratically with the number of transmit antennas and the constellation order. Moreover, the accuracy of these approximations is low and it can lead to wrong Modulation and Coding Scheme selection. In this work we apply a Multilayer Feedforward Neural Network to compute the achievable rate of a generic Index Modulation link. The case of two antennas/polarizations is analyzed in depth, showing not only a one-hundred fold decrement of the Mean Square Error in the estimation of the capacity as compared with existing analytical approximations, but also a fifty times reduction of the computational complexity. Moreover, the extension to an arbitrary number of antennas is explained and supported with simulations. More generally, neural networks can be considered as promising candidates for the practical estimation of complex metrics in communication related settings.

}, keywords = {ACM, Adaptive Communications, Capacity, Index Modulation, link adaptation, Machine Learning, MFNN, Mutual Information, neural networks, Polarized Modulation, Spatial Modulation}, isbn = {1558-0857 }, issn = {0090-6778 }, doi = {https://doi.org/10.1109/TCOMM.2020.2974215}, author = {Anxo Tato and Carlos Mosquera and Pol Henarejos and Ana P{\'e}rez Neira} } @conference {987, title = {Non-coherent rate-splitting for multibeam satellite forward link: practical coding and decoding algorithms}, booktitle = {IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 25-28 May 2020, virtual event.}, year = {2020}, author = {Nele Noels and Marc Moeneclaey and Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and M{\`a}rius Caus and Adriano Pastore} } @conference {993, title = {On the Performance of Advanced Reflectarray Configurations for Multibeam Satellite Communications}, booktitle = {XXXV Simposio Nacional de la Uni{\'o}n Cient{\'\i}fica Internacional de Radio, URSI 2020}, year = {2020}, author = {Tom{\'a}s Ram{\'\i}rez and Daniel Mart{\'\i}nez de Rioja and Eduardo Mart{\'\i}nez de Rioja and Carlos Mosquera and Jos{\'e} A. Encinar} } @conference {986, title = {Resource Management in the multibeam NOMA-based satellite downlink}, booktitle = {45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP)}, year = {2020}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera} } @conference {991, title = {Robustness analysis of beamforming based designs for mmWave Full-Duplex Amplify-and-Forward relays}, booktitle = {2020 14th International Conference on Signal Processing and Communication Systems (ICSPCS)}, year = {2020}, month = {12/2020}, abstract = {
We consider the robust design of a millimeter wave MIMO two-hop system in which source, relay and destination are
equipped with large antenna arrays. The relay implements the amplify-and-forward protocol and operates in full-duplex mode,
thus being subjected to self-interference (SI). Imperfect channel state information (CSI) is assumed in all involved links, including
the SI channel, with a deterministic isotropic bounded model on CSI errors. The proposed robust design seeks to maximize
the worst-case spectral efficiency, accommodates both digital and phase shifter-based analog beamforming, and is computationally
simple; moreover, it does not require knowledge of the size of the CSI uncertainty regions.
}, keywords = {full-duplex, mmWave, rodin}, author = {R. L{\'o}pez-Valcarce and M. Mart{\'\i}nez-Cotelo} } @conference {994, title = {Study on the Application of NOMA Techniques for Heterogeneous Satellite Terminals}, booktitle = {10th Advanced Satellite Multimedia Systems Conference (ASMS) and 16th Signal Processing for Space Communications Workshop (SPSC)}, year = {2020}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Nele Noels and M{\`a}rius Caus and Joan Bas and Luis Blanco and Nader Alagha} } @article {988, title = {Two-Level Frame Precoding with non-Cooperative Gateways}, journal = {EURASIP Journal on Wireless Communications and Networking}, year = {2020}, keywords = {myrada, satcom, winter}, doi = {https://doi.org/10.1186/s13638-020-01757-7}, url = {https://rdcu.be/b5KB3}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and R. L{\'o}pez-Valcarce} } @article {1043, title = {Capacity scaling in a non-coherent wideband massive SIMO block fading channel}, journal = {IEEE Transactions on Wireless Communications}, volume = {18}, year = {2019}, pages = {5691{\textendash}5704}, doi = {10.1109/TWC.2019.2938519}, author = {Gomez-Cuba, Felipe and Chowdhury, Mainak and Manolakos, Alexandros and Erkip, Elza and Goldsmith, Andrea J} } @conference {964, title = {Deep Learning Assisted Rate Adaptation in Spatial Modulation Links}, booktitle = {16th International Symposium on Wireless Communication Systems (ISWCS)}, year = {2019}, address = {Oulu (Finland)}, abstract = {

The adaptation of Spatial Modulation based links to the channel conditions is challenged by the complicated dependence between performance (either error rate metrics or theoretically achievable rates) and the multiple antenna channel description. In this paper a coding rate selection mechanism is presented based on a carefully selected set of channel features and the proper training of a deep neural network, which all together can satisfy a given error rate bound.

}, keywords = {Deep Learning, link adaptation, Machine Learning, Spatial Modulation}, author = {Anxo Tato and Carlos Mosquera} } @conference {973, title = {Efficient PRNU Matching in the Encrypted Domain}, booktitle = {XoveTIC}, year = {2019}, publisher = {MDPI}, organization = {MDPI}, address = {A Coru{\~n}a, Spain}, keywords = {camera attribution forensic analyzer, digital media forensics, lattice-based cryptosystems, Photoresponse Non-Uniformity}, author = {Alberto Pedrouzo-Ulloa and Miguel Masciopinto and Juan Ram{\'o}n Troncoso-Pastoriza and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {965, title = {Neural Network Aided Computation of Generalized Spatial Modulation Capacity}, booktitle = {27th European Signal Processing Conference (EUSIPCO)}, year = {2019}, address = {A Coru{\~n}a (Spain)}, abstract = {

Generalized Spatial Modulation (GSM) is being considered for future high-capacity and energy efficient terrestrial networks. A variant such as Polarized Modulation (PMod) has also a role in Dual Polarization Mobile Satellite Systems. The implementation of adaptive GSM systems requires fast methods to evaluate the channel dependent GSM capacity, which amounts to solve multi-dimensional integrals without closed-form solutions. For this purpose, we propose the use of a Multilayer Feedforward Neural Network and an associated feature selection algorithm. The resulting method is highly accurate and with much lower complexity than alternative numerical methods.

}, keywords = {Generalized Spatial Modulation, Index Modulations, Machine Learning, Multilayer Feedforward Neural Network, Polarized Modulation}, author = {Anxo Tato and Carlos Mosquera and Pol Henarejos and Ana P{\'e}rez-Neira} } @article {952, title = {Partial-Duplex Amplify-and-Forward Relaying: Spectral Efficiency Analysis under Self-Interference}, journal = {IEEE Transactions on Wireless Communications}, volume = {18}, year = {2019}, month = {04/2019}, pages = { 2271-2285}, abstract = {
We propose a novel mode of operation for Amplify-and-
Forward relays in which the spectra of the relay input and
output signals partially overlap. This partial-duplex relaying mode
encompasses half- and full-duplex as particular cases. By viewing
the partial-duplex relay as a bandwidth-preserving Linear
Periodically Time-Varying system, a spectral efficiency analysis
under self-interference is developed. In contrast with previous
works, self-interference is regarded as a useful informationbearing
component rather than simply assimilated to noise. This
approach reveals that previous results regarding the impact of
self-interference on (full-duplex) relay performance are overly
pessimistic. Based on a frequency-domain interpretation of the
effect of self-interference, a number of suboptimal decoding
architectures at the destination node are also discussed. It is found
that the partial-duplex relaying mode may provide an attractive
tradeoff between spectral efficiency and receiver complexity.
}, keywords = {full-duplex, myrada, winter}, doi = {10.1109/TWC.2019.2902390}, author = {R. L{\'o}pez-Valcarce and C. Mosquera} } @proceedings {968, title = {Solving self-interference issues in a Full-Duplex radio transceiver}, journal = {2nd XoveTIC Conference}, year = {2019}, month = {09/2019}, address = {A Coru{\~n}a (Spain)}, abstract = {
Most wireless devices transmit and receive at different spectrum frequency bands. This
approach is no longer optimal due to increasing electromagnetic exhaustion. Besides, interference
among all present and future working services should be negligible. A full-duplex scheme using
the same band for simultaneous uplink and downlink is a huge step towards solving this issue.
However, sharing the same frequency band involves a large interference of transmitted signal over
received signal. To fix this problem, we propose the usage of a hybrid multistage cancellation system,
consisting of an analog cancellation setup at RF frequencies and a baseband digital cancellation stage.
}, keywords = {adaptive signal processing, full-duplex, winter}, doi = {10.3390/proceedings2019021035}, author = {Miguel Franco-Martinez and Francisco-Javier Martinez-Alonso and R. L{\'o}pez-Valcarce} } @conference {966, title = {Spatial Modulation for Beyond 5G Communications: Capacity Calculation and Link Adaptation}, booktitle = {2nd XoveTIC Conference}, year = {2019}, address = {A Coru{\~n}a (Spain)}, keywords = {5G, adaptive coding and modulation, Deep Learning, link adaptation, Machine Learning, neural networks, Spatial Modulation}, author = {Anxo Tato and Carlos Mosquera} } @conference {978, title = {Spatial Modulation Link Adaptation: a Deep Learning Approach}, booktitle = {2019 53rd Asilomar Conference on Signals, Systems, and Computers}, year = {2019}, address = {California}, author = {Anxo Tato and Carlos Mosquera} } @conference {942, title = {Adjacent Beams Resource Sharing to Serve Hot Spots : A Rate Splitting Approach}, booktitle = {36th International Communications Satellite Systems Conference (ICSSC)}, year = {2018}, month = {10/2018}, address = {Niagara Falls, Canada}, abstract = {
This work addresses the uneven traffic demand scenario in multi-beam satellite systems, in which a hot-spot beam
is surrounded by cold beams. After partitioning the hotspot beam in different sectors, resource pulling from cold
neighbouring beams is allowed following an aggressive frequency-reuse scheme. As a consequence, the level of
the co-channel interference within the hot-spot beam increases. A scheme known as Non-Coherent Rate-Splitting (NCRS)
is employed to cope with this interference, based on the exclusive use of magnitude channel state information at the transmitter (CSIT).
The receiver complexity is increased with respect to full CSIT precoding schemes, which are considered for benchmarking purposes. Different NCRS strategies are analyzed and compared with several partial and full CSIT schemes. The proposed solution not only shows an improvement with respect to partial CSIT benchmarks, but also displays a competitive performance against full CSIT precoders.
}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and M{\`a}rius Caus and Adriano Pastore and Nader Alagha and Nele Noels} } @conference {951, title = {Camera Attribution Forensic Analyzer in the Encrypted Domain}, booktitle = {IEEE International Workshop on Information Forensics and Security (WIFS)}, year = {2018}, publisher = {IEEE}, organization = {IEEE}, address = {Hong Kong}, author = {Alberto Pedrouzo-Ulloa and Miguel Masciopinto and Juan Ram{\'o}n Troncoso-Pastoriza and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {923, title = {Channel dependent Mutual Information in Index Modulations}, booktitle = {ICCASP, IEEE International Conference on Acoustics, Speech, and Signal Processing}, year = {2018}, abstract = {

Mutual Information is the metric that is used to perform link adaptation, which allows to achieve rates near capacity. The computation of adaptive transmission modes is achieved by employing the mapping between the Signal to Noise Ratio and the Mutual Information. Due to the high complexity of the computation of the Mutual Information, this process is performed off-line via Monte Carlo simulations, whose results are stored in look-up tables. However, in Index Modulations, such as Spatial Modulation or Polarized Modulation, this is not feasible since the constellation and the Mutual Information are channel dependent and it would require to compute this metric at each time instant if the channel is time varying. In this paper, we propose different approximations in order to obtain a simple closed-form expression that allows to compute the Mutual Information at each time instant and thus, making feasible the link adaptation.

}, author = {Pol Henarejos and Ana P{\'e}rez-Neira and Anxo Tato and Carlos Mosquera} } @article {935, title = {Distributed Precoding Systems in Multi-Gateway Multibeam Satellites: Regularization and Coarse Beamforming}, journal = {IEEE Transactions on Wireless Communication}, year = {2018}, author = {Carlos Mosquera and R. L{\'o}pez-Valcarce and Tom{\'a}s Ram{\'\i}rez and Vahid Joroughi} } @conference {936, title = {Exploratory Analysis of Superposition Coding and Rate Splitting for Multibeam Satellite Systems}, booktitle = {15th International Symposium on Wireless Communication Systems (ISWCS)}, year = {2018}, address = { Lisbon, Portugal}, author = {M{\`a}rius Caus and Adriano Pastore and M{\`o}nica Navarro and Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Nele Noels and Nader Alagha and Ana I. Perez-Neira} } @conference {944, title = {Link Adaptation and Carriers Detection Errors in Multibeam Satellite Systems with Linear Precoding}, booktitle = {9th Advanced Satellite Multimedia Systems Conference (ASMS) and 15th Signal Processing for Space Communications Workshop (SPSC)}, year = {2018}, address = {Berlin, Germany}, abstract = {

The application of linear precoding at the gateway side enables broadband multibeam satellite systems to use more aggressive frequency reuse patterns increasing the overall capacity of future High Throughput Satellites (HTS). However, although some previous works about precoding consider imperfect CSIT (Chanel State Information at the Transmitter) adding some CSI estimation errors, that is not the main cause of CSI degradation. In practice, receivers can only detect and estimate a few coefficients of the CSI vector being the other nullified, replaced by zeros. This introduces errors in the SINR calculation by the gateway that lead to the assignment of Modulation and Coding Schemes (MCS) over the decoding possibilities of the users, increasing the rate of erroneous frames. In this work, the errors in the SINR calculation caused by the nullification of the CSI are analyzing statistically and geographically using a radiation diagram of 245 beams over Europe. Furthermore, a solution based on a link adaptation algorithm with a per user adaptive margin is proposed, helping to achieve the QEF (Quasi-error Free) target of DVB-S2X systems.

}, author = {Anxo Tato and Stefano Andrenacci and Chatzinotas, S. and Carlos Mosquera} } @conference {937, title = {Message-Splitting for Interference Cancellation in Multibeam Satellite Systems}, booktitle = {9th Advanced Satellite Multimedia Systems Conference (ASMS) and 15th Signal Processing for Space Communications Workshop (SPSC)}, year = {2018}, address = { Berlin, Germany}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and M{\`a}rius Caus and Adriano Pastore and M{\`o}nica Navarro and Nele Noels} } @conference {934, title = {Practical Implementation of Link Adaptation with Dual Polarized Modulation (Best paper award)}, booktitle = {11th International Symposium on Communication Systems, Networks, and Digital Signal Processing.}, year = {2018}, author = {Anxo Tato and Carlos Mosquera and Pol Henarejos and Ana P{\'e}rez-Neira} } @conference {940, title = {Putting the PRNU Model in Reverse Gear: Findings with Synthetic Signals}, booktitle = {European Signal Processing Conference (EUSIPCO)}, year = {2018}, month = {2018}, address = {Rome, Italy}, author = {Miguel Masciopinto and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {950, title = {Symbol-Asynchronous Transmission In Multibeam Satellite User Down-Link: Rate Regions For Novel Superposition Coding Schemes}, booktitle = {6th IEEE Global Conference on Signal and Information Processing}, year = {2018}, abstract = {

We consider the forward link of a multibeam satellite system with high spectral reuse and the novel low-complexity transmission and detection strategies from ["{\textquotedblleft}Exploratory analysis of superposition coding and rate splitting for multibeam satellite systems", ISWCS 2018]. More specifically, we study the impact of a time offset between the antenna beams that cooperate to simultaneously serve a given user. Assuming Gaussian signaling, we provide closed-form expressions for the achievable rate region. It is demonstrated that, in the absence of timing information at the gateway, this region is not affected by a time offset. Our numerical results further show that, in case timing is known at the gateway, an offset of half a symbol period at both user terminals is optimal in terms of spectral efficiency.

}, author = {Nele Noels and Marc Moeneclaey and Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and M{\`a}rius Caus and Adriano Pastore} } @conference {930, title = {Two-Level Precoding for High Throughput Satellites with non-Cooperative Gateways}, booktitle = {22nd International Workshop on Smart Antennas (WSA)}, year = {2018}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera and Roberto L{\'o}pez-Valcarce} } @conference {912, title = {Distributed Precoding Systems in Multi-Gateway Multibeam Satellites}, booktitle = {35th AIAA International Communications Satellite Systems Conference}, year = {2017}, month = {10/2017}, address = {Trieste,Italy}, keywords = {precoding, satcom}, author = {Carlos Mosquera and R. L{\'o}pez-Valcarce and Tom{\'a}s Ram{\'\i}rez} } @article {880, title = {FER Estimation in a Memoryless BSC with Variable Frame Length and Unreliable ACK/NAK Feedback}, journal = {IEEE Transactions on Wireless Communications}, volume = {16}, year = {2017}, month = {06/2017}, pages = {3661 - 3673}, abstract = {
We consider the problem of estimating the frame error rate (FER) of a given memoryless binary symmetric channel by observing the success or failure of transmitted packets. Whereas FER estimation is relatively straightforward if all observations correspond to packets with equal length, the problem becomes considerably more complex when this is not the case. We develop FER estimators when
transmissions of different lengths are observed, together with the Cramer-Rao Lower Bound (CRLB). Although the main focus is on Maximum Likelihood (ML) estimation, we also obtain low complexity schemes performing close to optimal in some scenarios. In a second stage, we consider the case in which FER estimation is performed at a node different from the receiver, and incorporate the impairment of unreliable observations by considering noisy ACK/NAK feedback links. The impact of unreliable feedback is analyzed by means of the corresponding CRLB. In this setting, the ML estimator is obtained by applying the Expectation-Maximization algorithm to jointly estimate the error probabilities of the data and feedback links. Simulation results illustrate the benefits of the proposed estimators.
}, keywords = {adaptive signal processing, compass, Cram{\'e}r-Rao bound (CRB), frame error rate, myrada, winter}, doi = {10.1109/TWC.2017.2686845}, author = {Alberto Rico-Alvari{\~n}o and R. L{\'o}pez-Valcarce and Carlos Mosquera and Robert W. Heath Jr.} } @proceedings {909, title = {Link Adaptation Algorithms for Dual Polarization Mobile Satellite Systems}, journal = {9th EAI International Conference on Wireless and Satellite Systems, WISATS}, volume = {Wireless and Satellite Systems}, year = {2017}, month = {2018}, pages = {52-61}, publisher = {Springer International Publishing}, address = {Oxford}, abstract = {

The use of dual polarization in mobile satellite systems is
very promising as a means for increasing the transmission capacity. In this paper a system which uses simultaneously two orthogonal polarizations in order to communicate with the users is studied. The application of MIMO signal processing techniques along with Adaptive Coding and Modulation in the forward link can provide remarkable throughput gains up to 100 \% when compared with the single polarization system. The gateway is allowed to vary the MIMO and Modulation\  and Coding Schemes for each frame. The selection is done by means of a link adaptation algorithm which uses a tunable margin to achieve a predefined target Frame Error Rate.

}, issn = {978-3-319-76571-6}, author = {Anxo Tato and Pol Henarejos and Carlos Mosquera and Ana P{\'e}rez-Neira} } @conference {841, title = {Advanced Signal Processing Techniques for Fixed and Mobile Satellite Communications}, booktitle = {8th Advanced Satellite Multimedia Systems Conference 14th Signal Processing for Space Communications Workshop}, year = {2016}, month = {09/2016}, keywords = {compass, full duplex, satcom}, author = {Pol Henarejos and Ana P{\'e}rez-Neira and Nicol{\`o} Mazzali and Carlos Mosquera} } @conference {840, title = {Bandwidth Allocation in Partial Duplex Relaying}, booktitle = {The 17th IEEE International workshop on Signal Processing advances in Wireless Communications (SPAWC)}, year = {2016}, month = {07/2016}, address = {Edinburgh, UK}, keywords = {compass, full duplex, relay}, author = {Carlos Mosquera and R. L{\'o}pez-Valcarce} } @conference {875, title = {Fast Sequential Forensic Detection of Camera Fingerprint}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2016}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and Miguel Masciopinto and Iria Gonz{\'a}lez-Iglesias and Pedro Comesa{\~n}a} } @conference {843, title = {Full-duplex operation in two-way broadcast service for maritime applications}, booktitle = {8th Advanced Satellite Multimedia Systems Conference and 14th Signal Processing for Space Communications Workshop}, year = {2016}, month = {09/2016}, keywords = {compass, full duplex, satcom}, author = {Tom{\'a}s Ram{\'\i}rez and Carlos Mosquera} } @article {854, title = {Hybrid MIMO Architectures for Millimeter Wave Communications: Phase Shifters or Switches?}, journal = {IEEE Access}, volume = {4}, year = {2016}, month = {January, 2016}, pages = {247-267}, doi = {10.1109/ACCESS.2015.2514261}, url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=7370753}, author = {Mendez-Rial, Roi and Rusu, Cristian and Nuria Gonz{\'a}lez-Prelcic and Alkhateeb, A. and Heath Jr, Robert W.} } @conference {842, title = {The impact of feeder link interference in multiple gateway multibeam satellite systems}, booktitle = {8th Advanced Satellite Multimedia Systems Conference 14th Signal Processing for Space Communications Workshop}, year = {2016}, month = {09/2016}, keywords = {compass, satcom}, author = {Vahid Joroughi and Carlos Mosquera} } @conference {844, title = {Link adaptation in mobile satellite links: field trials results}, booktitle = {8th Advanced Satellite Multimedia Systems Conference and 14th Signal Processing for Space Communications Workshop}, year = {2016}, month = {09/2016}, keywords = {compass, satcom}, author = {Anxo Tato and Carlos Mosquera and Iago G{\'o}mez} } @article {828, title = {Link adaptation in mobile satellite links: schemes for different degrees of CSI knowledge}, journal = {International Journal of Satellite Communications and Networking}, volume = {34}, year = {2016}, month = {09/2016}, pages = {679-694}, keywords = {compass, satcom}, author = {Alberto Rico-Alvari{\~n}o and Jesus Arnau and Carlos Mosquera} } @article {926, title = {Low complexity hybrid precoding strategies for millimeter wave communication systems}, journal = {IEEE Trans. Wireless Communications}, volume = {15}, year = {2016}, month = {12/2016}, pages = {8380 - 8393}, abstract = {

Millimeter communication systems use large antenna arrays to provide good average received power and to take advantage of multi-stream MIMO communication. Unfortunately, due to power consumption in the analog front-end, it is impractical to perform beamforming and fully digital precoding at baseband. Hybrid precoding/combining architectures have been proposed to overcome this limitation. The hybrid structure splits the MIMO processing between the digital and analog domains, while keeping the performance close to that of the fully digital solution. In this paper, we introduce and analyze several algorithms that efficiently design hybrid precoders and combiners starting from the known optimum digital precoder/combiner, which can be computed when perfect channel state information is available. We propose several low complexity solutions which provide different trade-offs between performance and complexity. We show that the proposed iterative solutions perform better in terms of spectral efficiency and/or are faster than previous methods in the literature. All of them provide designs which perform close to the known optimal digital solution. Finally, we study the effects of quantizing the analog component of the hybrid design and show that even with coarse quantization, the average rate performance is good.

}, keywords = {compass, mmWave}, doi = {10.1109/TWC.2016.2614495}, author = {Cristian Rusu and Roi M{\'e}ndez-Rial and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @conference {859, title = {Radar aided mmWave beam alignment in V2I communications supporting antenna diversity}, booktitle = {Information Theory and Applications Workshop (ITA}, year = {2016}, month = {January, 2016}, keywords = {compass, mmWave}, author = {Nuria Gonz{\'a}lez-Prelcic and R. M{\'e}ndez-Rial and R.W. Heath Jr.} } @conference {839, title = {Wideband self-interference cancellation for better spectrum use}, booktitle = {IEEE WoWMoM 2016 Workshop on Fifth Generation Wireless}, year = {2016}, month = {06/2016}, keywords = {adaptive signal processing, compass, full duplex}, author = {Carlos Mosquera} } @conference {863, title = {Adaptive hybrid precoding and combining in mmWave multiuser MIMO systems based on compressed covariance estimation}, booktitle = {IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP)}, year = {2015}, month = {December, 2015}, keywords = {compass, mmWave}, author = {R. M{\'e}ndez-Rial and Nuria Gonz{\'a}lez-Prelcic and R. W. Heath Jr.} } @conference {861, title = {Adaptive one-bit compressive sensing with application to low-precision receivers at mmWave}, booktitle = {IEEE Global Telecommunications Conf. (GLOBECOM), }, year = {2015}, month = {December, 2015}, keywords = {compass, mmWave}, author = {C. Rusu and R. M{\'e}ndez-Rial and Nuria Gonz{\'a}lez-Prelcic and R. W. Heath, Jr} } @conference {817, title = {Augmented covariance estimation with a cyclic approach in DOA}, booktitle = {IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)}, year = {2015}, month = {04/2015}, pages = {2784-2788}, publisher = {IEEE}, organization = {IEEE}, address = {Brisbane, Australia}, abstract = {

High resolution direction-of-arrival (DOA) estimation is an important problem in many array signal processing applications. This paper proposes an augmented covariance estimator for DOA estimation. The new method exploits the periodicity of the covariance lags when the DOAs are assumed on a discrete grid with a certain resolution. Then, it achieves twice the resolution of typical methods such as the direct augmentable approach or forward backward spatial smoothing. When the sources are not on the discrete grid, an interpolated array manifold technique is proposed to mitigate the grid mismatch error.

}, keywords = {DOA estimation, Non-uniformly spaced arrays}, author = {Roi M{\'e}ndez-Rial and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @conference {1033, title = {{Bandwidth occupancy of non-coherent wideband fading channels}}, booktitle = {IEEE International Symposium on Information Theory (ISIT)}, year = {2015}, author = {Gomez-Cuba, Felipe and Du, Jinfeng and M{\'e}dard, Muriel and Erkip, Elza} } @conference {804, title = {Blind Satellite Inter-Gateway Interference Mitigation}, booktitle = {IEEE International Conference on Communications (ICC)}, year = {2015}, month = {2015}, keywords = {compass, satcom}, author = {J. Arnau and C. Mosquera} } @conference {1035, title = {Capacity scaling in noncoherent wideband massive SIMO systems}, booktitle = {IEEE Information Theory Workshop (ITW)}, year = {2015}, month = {apr}, author = {Chowdhury, Mainak and Manolakos, Alexandros and Gomez-Cuba, Felipe and Erkip, Elza and Goldsmith, Andrea J} } @article {769, title = {Cram{\'e}r-Rao Bounds for SNR Estimation of Oversampled Linearly Modulated Signals}, journal = {IEEE Trans. Signal Processing}, volume = {63}, year = {2015}, month = {04/2015}, pages = {1675-1683}, chapter = {1675}, abstract = {
Most Signal-to-noise ratio (SNR) estimators use the
receiver matched filter output sampled at the symbol rate, an
approach which does not preserve all information in the analog
waveform due to aliasing. Thus, it is relevant to ask whether
avoiding aliasing could improve SNR estimation. To this end, we
compute the corresponding data-aided (DA) and non-data-aided
(NDA) Cram{\'e}r-Rao bounds (CRBs). We adopt a novel dual filter
framework, which is shown to be information-preserving under
suitable conditions and considerably simplifies the analysis. It is
shown that the CRB can be substantially reduced by exploiting
any available excess bandwidth, depending on the modulation
scheme, the SNR range, and the estimator (DA or NDA) type.
}, keywords = {adaptive signal processing, compass, Cram{\'e}r-Rao bound (CRB), dynacs, oversampling, Signal-to-noise ratio (SNR)}, doi = {10.1109/TSP.2015.2396013}, author = {R. L{\'o}pez-Valcarce and J. Villares and J. Riba and W. Gappmair and C. Mosquera} } @conference {818, title = {Dictionary-free Hybrid Precoders and Combiners for mmWave MIMO Systems}, booktitle = {IEEE Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2015}, month = {06/2015}, publisher = {IEEE}, organization = {IEEE}, address = {Stockholm, Sweden}, keywords = {compass, mmWave}, author = {Roi M{\'e}ndez-Rial and Cristian Rusu and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @conference {806, title = {Frequency Reuse in Dual Satellite Settings: an Initial Evaluation of Full Duplex Operation}, booktitle = {IEEE International Conference on Communications (ICC)}, year = {2015}, keywords = {compass, full duplex, satcom}, author = {D. Marti{\~n}{\'a}n-Otero and C. Mosquera} } @conference {819, title = {Low Complexity Hybrid Sparse Precoding and Combining in Millimeter Wave MIMO Systems}, booktitle = {IEEE Int. Conference on Communications (ICC)}, year = {2015}, month = {06/2015}, publisher = {IEEE}, organization = {IEEE}, address = {London, UK}, keywords = {compass, mmWave}, author = {Cristian Rusu and Roi M{\'e}ndez-Rial and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @inbook {805, title = {Multibeam Joint Detection}, booktitle = {Cooperative and Cognitive Satellite Systems}, year = {2015}, publisher = {Elsevier}, organization = {Elsevier}, keywords = {satcom}, author = {J. Arnau and R. de Lamare and C. Mosquera} } @conference {822, title = {Pushing for higher rates and efficiency in Satcom: the different perspectives within SatNExIV}, booktitle = {Twelfth International Symposium on Wireless Communication Systems (ISWCS)}, year = {2015}, address = {Brussels}, keywords = {satcom}, author = {Miguel {\'A}ngel V{\'a}zquez and Ana P{\'e}rez Neira and Carlos Mosquera and Bhavani Shankar and Pol Henarejos and Athanasios Panagopoulos and Giovanni Giambene and Vasilios Siris and George Polyzos and Nader Alagha} } @conference {807, title = {Robust Adaptive Coding and Modulation Scheme for the Mobile Satellite Forward Link}, booktitle = {IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC}, year = {2015}, keywords = {compass, satcom}, author = {Alberto Rico-Alvari{\~n}o and Anxo Tato and Carlos Mosquera} } @conference {750, title = {Balancing Closed and Open Loop CSI in Mobile Satellite Link Adaptation}, booktitle = {Proc. ASMS \& SPSC}, year = {2014}, address = {Livorno, Italy}, keywords = {dynacs, satcom}, doi = {10.1109/ASMS-SPSC.2014.6934548}, author = {Alberto Rico-Alvari{\~n}o and Arnau, Jesus and Carlos Mosquera} } @conference {771, title = {Channel estimation in millimeter wave MIMO systems with one-bit quantization}, booktitle = {Asilomar Conf. on Signals, Systems and Computers}, year = {2014}, keywords = {adaptive signal processing, compass, mmWave}, doi = {10.1109/ACSSC.2014.7094595}, author = {Jianhua Mo and Phil Schniter and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @conference {741, title = {Dissection of multibeam satellite communications with a large-scale antenna system toolbox}, booktitle = {European Wireless 2014 (EW2014)}, year = {2014}, pages = {548-553}, address = {Barcelona, Spain}, abstract = {

Current multibeam satellite systems consist of a very large number of spot beams. In this paper, we analyze them from the large scale MIMO perspective, and establish a comparison with massive MIMO systems. It will be shown that the large number of beams has important operational implications, and that it simplifies the analysis because it allows using asymptotic results. However, it will also be shown that multibeam satellite systems cannot be considered massive MIMO systems.

}, keywords = {dynacs, large-scale analysis, Massive MIMO, multibeam satellites, Multiuser detection, satcom}, doi = {ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=6843099}, author = {Arnau, Jesus and Carlos Mosquera} } @conference {726, title = {FER prediction with variable codeword length}, booktitle = {ICASSP2014 - Signal Processing for Communications and Networking (ICASSP2014 - SPCOM)}, year = {2014}, address = {Florence, Italy}, abstract = {

Frame error rate (FER) prediction in wireless communication systems is an important tool with applications to system level simulations and link adaptation, among others. Although in realistic communication scenarios it is expected to have codewords of different lengths, previous work on FER prediction marginally treated the dependency of the FER on the codeword length. In this paper, we present a method to estimate the FER using codewords of different length. We derive a low complexity FER estimator for frames of different length transmitted over a binary symmetric channel of unknown error probability. We extend this technique to coded systems by the use of effective SNR FER predictors. The proposed estimation scheme is shown to outperform other simpler estimation methods.

}, keywords = {adaptive signal processing, compass, dynacs, Effective SNR, FER prediction, PHY abstraction}, doi = {10.1109/ICASSP.2014.6853935}, author = {Alberto Rico-Alvari{\~n}o and Robert W. Heath Jr. and Carlos Mosquera} } @conference {733, title = {How to Implement Doubly-Stochastic Matrices for Consensus-Based Distributed Algorithms}, booktitle = {IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM)}, year = {2014}, address = {A Coru{\~n}a, Spain}, abstract = {
Doubly-stochastic matrices are usually required by
consensus-based distributed algorithms. We propose a simple
and efficient protocol and present some guidelines for implementing
doubly-stochastic combination matrices even in noisy,
asynchronous and changing topology scenarios. The proposed
ideas are validated with the deployment of a wireless sensor
network, in which nodes run a distributed algorithm for robust
estimation in the presence of nodes with faulty sensors.
}, keywords = {compass, dynacs, wsn}, doi = {10.1109/SAM.2014.6882409}, author = {S. Valc{\'a}rcel-Macua and C. Moreno-Le{\'o}n and J. S. Romero and Silvana Silva Pereira and Javier Zazo and Alba Pag{\`e}s-Zamora and R. L{\'o}pez-Valcarce and S. Zazo} } @article {766, title = {MIMO precoding and combining solutions for millimeter wave systems}, journal = {IEEE Communications Magazine}, volume = {52}, year = {2014}, month = {12/2014}, pages = {122-131}, abstract = {

Millimeter-wave communication is one way to alleviate the spectrum gridlock at lower frequencies while simultaneously providing high-bandwidth communication channels. MmWave makes use of MIMO through large antenna arrays at both the base station and the mobile station to provide sufficient received signal power. This article explains how beamforming and precoding are different in MIMO mmWave systems than in their lower-frequency counterparts, due to different hardware constraints and channel characteristics. Two potential architectures are reviewed: hybrid analog/digital precoding/combining and combining with low-resolution analog- to-digital converters. The potential gains and design challenges for these strategies are discussed, and future research directions are highlighted.

}, keywords = {adaptive signal processing, compass, mmWave}, doi = {10.1109/MCOM.2014.6979963}, author = {Ahmed Alkhateeb and Jianhua Mo and Nuria Gonz{\'a}lez-Prelcic and Robert W. Heath Jr.} } @article {744, title = {Performance of the Multibeam Satellite Return Link with Correlated Rain Attenuation}, journal = {IEEE Transactions on Wireless Communications}, year = {2014}, pages = {1-1}, abstract = {

Rain attenuation is among the major impairments for satellite systems operating in the K band and above. In this paper, we investigate the impact of spatially correlated rain attenuation on the performance of a multibeam satellite return link. For a comprehensive assessment, an analytical model for the antenna pattern that generates the beams is also proposed. We focus on the outage capacity of the link, and obtain analytical approximations at high and low SNR. The derived approximations provide insights on the effect of key system parameters {\textendash} like the inter-user distance, the satellite beam radius, or the rain intensity{\textendash} and simulation results show that it fits tightly to the Monte Carlo results. Additionally, the derived expressions can be easily particularized for the single-user case, providing some novel insights.

}, keywords = {Antennas, Approximation methods, Attenuation, Correlation, dynacs, Rain, satcom, Satellites, Signal to noise ratio}, doi = {10.1109/TWC.2014.2329682}, author = {Arnau, Jesus and Christopoulos, D. and Chatzinotas, S. and C. Mosquera and Ottersten, B.} } @conference {764, title = {Sensitivity of compressive sensing architectures based on time interleaved analog-to-digital converters to channel mismatches}, booktitle = {IEEE International New Circuits and Systems Conference (NEWCAS)}, year = {2014}, keywords = {dynacs}, doi = {10.1109/NEWCAS.2014.6933981}, author = {Roi M{\'e}ndez-Rial and J.M. Caurel-Carrera and Nuria Gonz{\'a}lez-Prelcic} } @conference {697, title = {Analytical Characterization of the Single Frequency Network Gain Using Effective SNR Metrics}, booktitle = {The Tenth International Symposium on Wireless Communication Systems 2013 (ISWCS 2013)}, year = {2013}, address = {Ilmenau, Germany}, abstract = {

The design of broadcasting networks operating in a single frequency way is challenging due to the difficulty of predicting the performance in a frequency selective channel, caused by natural multipath and echoes coming from different transmitters. In this paper we resort to the use of frame error rate prediction metrics (also known as effective SNR metrics) to characterize the performance gain (or loss) under different multipath and SNR regimes in a simplified scenario with two transmitters. The analysis shows clearly that receivers with a dominant line of sight reception and high SNR are more sensitive to the presence of echoes, while those users in low SNR or strong multipath conditions are easily enforced by the insertion of a second transmitter.

}, keywords = {broadcasting, dynacs, Effective SNR metrics, Single Frequency Network}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera} } @article {678, title = {A Cognitive Mobile BTS Solution with Software-Defined Radioelectric Sensing}, journal = {Sensors}, volume = {13}, year = {2013}, month = {02/2013}, pages = { 2051-2075}, chapter = { 2051}, abstract = {

Private communications inside large vehicles such as ships may be effectively provided using standard cellular systems. In this paper we propose a new solution based on software-defined radio with electromagnetic sensing support. Software-defined radio allows low-cost developments and, potentially, added-value services not available in commercial cellular networks. The platform of reference, OpenBTS, only supports single-channel cells. Our proposal, however, has the ability of changing BTS channel frequency without disrupting ongoing communications. This ability should be mandatory in vehicular environments, where neighbouring cell configurations may change rapidly, so a moving cell must be reconfigured in real-time to avoid interferences. Full details about frequency occupancy sensing and the channel reselection procedure are provided in this paper. Moreover, a procedure for fast terminal detection is proposed. This may be decisive in emergency situations, e.g., if someone falls overboard. Different tests confirm the feasibility of our proposal and its compatibility with commercial GSM terminals.

}, keywords = {cognitive radio, dynacs, mobile communications, SDR, vehicular communications}, doi = {10.3390/s130202051}, author = {J. Mu{\~n}oz and J. Vales-Alonso and F. Qui{\~n}oy-Garc{\'\i}a and Costas-Sanz, S. and M. Pillado and F.J. Gonz{\'a}lez-Casta{\~n}o and M. Garc{\'\i}a-Sanchez and R. L{\'o}pez-Valcarce and C. L{\'o}pez-Bravo} } @proceedings {708, title = {Cross Layer Link Adaptation in Time Varying Mobile Satellite Channels with Statistical and Outdated CSIT}, journal = {Asilomar Conference on Signals Systems and Computers}, year = {2013}, keywords = {dynacs, satcom}, doi = {10.1109/ACSSC.2013.6810481}, author = {Alberto Rico-Alvari{\~n}o and J. Arnau and Carlos Mosquera} } @article {676, title = {On the design of a novel two-objective harmony search approach for distance- and connectivity-based localization in wireless sensor networks}, journal = {Engineering Applications of Artificial Intelligence}, volume = {26}, year = {2013}, month = {02/2013}, pages = {669-676}, chapter = {669}, keywords = {dynacs, wsn}, doi = {10.1016/j.engappai.2012.06.002}, author = {Diana Manjarres and Javier Del Ser and Sergio Gil-Lopez and Massimo Vecchio and Itziar Landa-Torres and Sancho Salcedo-Sanz and R. L{\'o}pez-Valcarce} } @article {689, title = {MMSE Performance Analysis of Generalized Multibeam Satellite Channels}, journal = {Communications Letters, IEEE}, year = {2013}, pages = {1-4}, keywords = {dynacs, linear minimum mean square error receivers, multibeam satellites, Multiuser detection, return link, satcom}, doi = {10.1109/LCOMM.2013.052013.122658}, author = {Christopoulos, D. and J. Arnau and Chatzinotas, S. and C. Mosquera and Ottersten, B.} } @article {677, title = {A novel heuristic approach for distance- and connectivity-based multihop node localization in wireless sensor networks}, journal = {Soft Computing}, volume = {17}, year = {2013}, month = {01/2013}, pages = {17-28}, chapter = {17}, keywords = {dynacs, wsn}, doi = {10.1007/s00500-012-0897-2}, author = {Diana Manjarres and Javier Del Ser and Sergio Gil-Lopez and Massimo Vecchio and Itziar Landa-Torres and R. L{\'o}pez-Valcarce} } @conference {705, title = {Open Loop Adaptive Coding and Modulation for Mobile Satellite Return Links}, booktitle = {31st AIAA International Communications Satellite Systems Conference}, year = {2013}, publisher = {American Institute of Aeronautics and Astronautics}, organization = {American Institute of Aeronautics and Astronautics}, address = {Florence, Italy}, keywords = {dynacs, link adaptation, satcom}, doi = {doi:10.2514/6.2013-5704}, author = {Arnau, Jesus and Carlos Mosquera} } @conference {698, title = {Statistical Cross Layer Adaptation in Fast Fading Mobile Satellite Channels}, booktitle = {Globecom 2013 - Symposium on Selected Areas in Communications (GC13 SAC)}, year = {2013}, address = {Atlanta, USA}, abstract = {

Link adaptation in mobile satellite channels is difficult because of the large propagation delays, the frequent signal blockage and the variation of the channel statistics. In this paper, we propose a cross-layer link adaptation strategy that exploits statistical, long-term CSI to increase the throughput when some retransmissions are available; this increase is obtained while meeting a target outage probability constraint. Our strategy takes as inputs the estimated packet error rates of the available modulation and coding schemes (MCS) and their rates; as an output, it returns the optimum sequence of MCS to be used. Results will also show that simple information acquisition strategies can still provide very good results.

}, keywords = {dynacs, fast fading channels, link adaptation, mobile satellite, satcom}, doi = {10.1109/GLOCOM.2013.6831502}, author = {Alberto Rico-Alvari{\~n}o and J. Arnau and C. Mosquera} } @article {651, title = {An Adaptive Feedback Canceller for Full-Duplex Relays Based on Spectrum Shaping}, journal = {IEEE J. Selected Areas in Communications}, volume = {30}, year = {2012}, month = {08/2012}, pages = {1566 - 1577}, abstract = {
Although full-duplex relaying schemes are appealing\ in order to improve spectral efficiency, simultaneous reception\ and transmission in the same frequency results in selfinterference,
distorting the retransmitted signal and making\ the relay prone to oscillation. Current feedback cancellation\ techniques by means of adaptive filters are hampered by the fact\ that the useful and interference signals are highly correlated. We\ present a new adaptive algorithm which effectively and blindly
restores the spectral shape of the desired signal. In contrast
with previous schemes, the novel adaptive feedback canceller has\ low complexity, does not introduce additional delay in the relay\ station, and partly compensates for multipath propagation.
}, keywords = {adaptive signal processing, dynacs, full duplex}, doi = {10.1109/JSAC.2012.120923}, author = {R. L{\'o}pez-Valcarce and Emilio Antonio-Rodr{\'\i}guez and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {641, title = {Adaptive Transmission Techniques for Mobile Satellite Links}, booktitle = {30th AIAA International Communications Satellite Systems Conference (ICSSC)}, year = {2012}, address = {Ottawa, Canada}, keywords = {dynacs, satcom}, author = {Arnau, Jesus and Alberto Rico-Alvari{\~n}o and C. Mosquera} } @conference {638, title = {On the Effect of Echoes in Hybrid Terrestrial-Satellite Single Frequency Networks: Analysis and Countermeasures}, booktitle = {2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC) (ASMS/SPSC 2012)}, year = {2012}, address = {Baiona, Spain}, abstract = {

Hybrid Terrestrial Satellite Single Frequency Networks achieve large spectral efficiencies due to a higher frequency reuse, which is attained by transmitting the same waveform in the same frequency band from satellite and terrestrial transmitters. However, the presence of multiple transmitters propitiates the existence of the so-called SFN echoes, which can degrade the system performance even if they arrive within the OFDM guard interval. In this paper we characterize this effect by resorting to PER prediction metrics (or effective SNR metrics), and analyze two simple preprocessing schemes that mitigate this degradation: the use of Alamouti space-time codes, and a convenient prefiltering at the terrestrial transmitter.

}, keywords = {dynacs, Effective SNR, Hybrid Terrestrial- Satellite, satcom, Satellite OFDM, Single Frequency Network, Space-Time Coding}, doi = {10.1109/ASMS-SPSC.2012.6333071}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera} } @conference {659, title = {IPTV streaming source classification}, booktitle = {IEEE Workshop on Information Forensics and Security}, year = {2012}, address = {Tenerife, Spain}, author = {Miguel Masciopinto and Pedro Comesa{\~n}a} } @conference {642, title = {Multiuser Detection Performance in Multibeam Satellite Links under Imperfect CSI}, booktitle = {ASILOMAR 2012}, year = {2012}, address = {Pacific Grove, CA}, keywords = {dynacs, satcom}, doi = {10.1109/ACSSC.2012.6489048}, author = {Arnau, Jesus and C. Mosquera} } @conference {639, title = {Optimum Training for CSI Acquisition in Cognitive Radio Channels}, booktitle = {Asilomar Conference on Signals, Systems, and Computers}, year = {2012}, address = {Pacific Grove, CA}, keywords = {adaptive signal processing, cognitive radio, dynacs}, doi = {10.1109/ACSSC.2012.6488973}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera} } @article {645, title = {Overlay Cognitive Transmission in a Multicarrier Broadcast Network with Dominant Line of Sight Reception}, journal = {IEEE Transactions on Wireless Communications}, year = {2012}, keywords = {cognitive radio, dynacs, satcom}, doi = {10.1109/TWC.2012.092112.120257}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {633, title = {Overlay cognitive transmission in OFDM point to point systems exploiting primary feedback}, booktitle = {3rd International Workshop on Cognitive Information Processing (CIP) }, year = {2012}, month = {05/2012}, address = {Baiona, Galicia, Spain}, abstract = {

A secondary user that tries to reuse the spectrum allocated to a primary user can exploit the knowledge of the primary message to perform this task. In particular, the overlay\  cognitive radio paradigm postulates the use of a fraction of the available power at the secondary transmitter to convey the primary message, so the spectral efficiency of the primary\  system is increased, and, therefore, some transmission resources (time slots or frequency bands) can be released to the secondary transmission while the primary user rate is kept constant. The fraction of released resources can be incremented if some channel state information is available at the secondary transmitter. In this paper, we present a scenario where the secondary transmitter maximizes the primary link quality (measured in terms of Effective SNR), and obtains its channel state information by exploiting the primary user SNR-based feedback.

}, keywords = {cognitive radio, dynacs}, doi = {10.1109/CIP.2012.6232932}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera} } @proceedings {644, title = {Overlay Spectrum Reuse in a Broadcast Network: Covering the Whole Grayscale of Spaces}, journal = {IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN 2012)}, year = {2012}, address = {Bellevue, WA}, keywords = {cognitive radio, dynacs}, doi = {10.1109/DYSPAN.2012.6478172}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera} } @conference {634, title = {Overlay Spectrum Reuse in a Multicarrier Broadcast Network: Coverage Analysis}, booktitle = {The 13th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2012)}, year = {2012}, address = {Cesme, Turkey}, abstract = {

A secondary cognitive user overlaying its message in a broadcast multicarrier network is studied. The secondary user exploits the primary message knowledge to convey its own information while preserving the primary user coverage area, determined by a bound on the BER, and taking into account the degradation due to the insertion of an echo in a dominant line of sight environment. The results are compared with those obtained when the coverage area is defined in capacity terms, and regardless of the degradation caused by the secondary replica of the primary message.

}, keywords = {cognitive radio, dynacs}, doi = {10.1109/SPAWC.2012.6292889}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {635, title = {Overlay Spectrum Reuse in a Multicarrier Broadcast Network: Single Receiver Analysis}, booktitle = {The 13th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2012)}, year = {2012}, address = {Cesme, Turkey}, abstract = {

The overlay cognitive radio paradigm presents a framework where a secondary user exploits the knowledge of the primary user{\textquoteright}s message to improve spectrum utilization. A multicarrier broadcast network is one of the scenarios where this knowledge is possible: the secondary user could join a single frequency network and, therefore, gain access to the primary message. However, if the primary signal is received with a strong line of sight component, its relaying from the secondary transmitter does not suffice to ensure the primary user quality of service. In this paper we study the scenario where a secondary transmitter maximizes its own transmission rate, keeping the quality of a primary receiver over a given threshold. The analytical results, based on bit error rate bounds, are verified by means of software simulations and hardware tests.

}, keywords = {cognitive radio, dynacs}, doi = {10.1109/SPAWC.2012.6292890}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {640, title = {Performance Analysis of Multiuser Detection for Multibeam Satellites Under Rain Fading}, booktitle = {2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC) (ASMS/SPSC 2012)}, year = {2012}, address = {Baiona, Spain}, abstract = {

Multibeam satellite systems are nowadays widely employed, and their use is expected to grow in the next decades. This has raised the interest for signal processing techniques able to mitigate the interference among beams, since they could enable a much more aggressive spectrum reuse. From an engineering point of view, the design of the system must be no longer based on the capabilities provided by the usual physical layer; it should take into account the presence of these interference canceling techniques, predict their performance as accurately as possible -even under a number of impairments and non-idealities- and design accordingly in order to fully exploit them. In this paper, we investigate the effect of a practical impairment of great importance, namely, the attenuation due to the rain, on the performance of a return link which performs MMSE interference canceling. Analytical expressions are derived for a number of performance measures based on the statistical characterization of the rain attenuation.

}, keywords = {dynacs, hybrid beamforming, multibeam satellites., Multiuser detection, rain fading, satcom}, doi = {10.1109/ASMS-SPSC.2012.6333078}, author = {Arnau, Jesus and C. Mosquera} } @article {636, title = {Performance study of multiuser interference mitigation schemes for hybrid broadband multibeam satellite architectures}, journal = {EURASIP Journal on Wireless Communications and Networking}, volume = {2012}, year = {2012}, pages = {132}, issn = {1687-1499}, doi = {10.1186/1687-1499-2012-132}, url = {http://jwcn.eurasipjournals.com/content/2012/1/132}, author = {Arnau, Jesus and Bertrand Devillers and C. Mosquera and Ana P{\'e}rez-Neira} } @conference {656, title = {On the Application of a Hybrid Harmony Search Algorithm to Node Localization in Anchor-based Wireless Sensor Networks}, booktitle = {IEEE International Conference on Intelligent Systems Design and Applications (ISDA)}, year = {2011}, author = {Diana Manjarres and Javier Del Ser and Sergio Gil-Lopez and Massimo Vecchio and Itziar Landa-Torres and R. L{\'o}pez-Valcarce} } @conference {Rico2011, title = {On the Co-existence of Primary and Secondary Transmitters in a Broadcast Network}, booktitle = {International Conference on Cognitive Radio and Advanced Spectrum Management}, year = {2011}, address = {Barcelona, Catalonia, Spain}, keywords = {Broadcast, cognitive radio, Overlay, Single Frequency Network}, author = {Alberto Rico-Alvari{\~n}o and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {MASS2011, title = {An Effective Metaheuristic Approach to Node Localization in Wireless Sensor Networks}, booktitle = {IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS)}, year = {2011}, author = {Massimo Vecchio and R. L{\'o}pez-Valcarce and Francesco Marcelloni} } @conference {Arna1112:Hybrid, title = {Hybrid Space-Ground Processing for High-Capacity Multi-beam Satellite Systems}, booktitle = {IEEE GLOBECOM}, year = {2011}, note = {Selected Areas in Communications Symposium - Satellite \& Space Communications Track (GC{\textquoteright}11 - SAC - SSC)}, month = {dec}, address = {Houston, Texas, USA}, author = {Arnau, Jesus and Michael Bergmann and Enzo Alberto Candreva and Giovanni Emanuele Corazza and Riccardo {De Gaudenzi} and Bertrand Devillers and Wilfried Gappmair and Francesco Lombardo and C. Mosquera and Ana P{\'e}rez-Neira and Ilaria Thibault and Alessandro Vanelli-Coralli} } @conference {Devi1112:Joint, title = {Joint Linear Precoding and Beamforming for the Forward Link of Multi-Beam Broadband Satellite Systems}, booktitle = {IEEE GLOBECOM}, year = {2011}, note = {Selected Areas in Communications Symposium - Satellite \& Space Communications Track (GC{\textquoteright}11 - SAC - SSC)}, address = {Houston, Texas, USA}, author = {Bertrand Devillers and Ana Isabel Perez and C. Mosquera} } @conference {Pineiro-SPIE2011, title = {A new method for perspective correction of document images}, booktitle = {Document Recognition and Retrieval}, series = {Proc. of SPIE}, volume = {7874}, year = {2011}, month = {January}, pages = {787410}, publisher = {SPIE}, organization = {SPIE}, address = {San Francisco, CA}, keywords = {Document image, perspective distortion correction, watermarking}, author = {Jos{\'e} Rodr{\'\i}guez-Pi{\~n}eiro and Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez and Alberto Malvido} } @conference {NaBIC2011, title = {Solving the Node Localization Problem in WSNs by a Two-objective Evolutionary Algorithm and Gradient Descent}, booktitle = {the 3-th IEEE World Congress on Nature and Biologically Inspired Computing (NaBIC 2011)}, year = {2011}, author = {Massimo Vecchio and R. L{\'o}pez-Valcarce and Francesco Marcelloni} } @conference {ISDA2011_1, title = {A study on the Application of Different Two-objective Evolutionary Algorithms to the Node Localization Problem in Wireless Sensor Networks}, booktitle = {IEEE International Conference on Intelligent Systems Design and Applications (ISDA)}, year = {2011}, author = {Massimo Vecchio and R. L{\'o}pez-Valcarce and Francesco Marcelloni} } @article {Vecchio2011, title = {A two-objective evolutionary approach based on topological constraints for node localization in wireless sensor networks}, journal = {Applied Soft Computing}, volume = {12}, year = {2011}, month = {07/2012}, pages = {1891-1901}, abstract = {

To know the location of nodes plays an important role in many current and envisioned wireless sensor network applications. In this framework, we consider the problem of estimating the locations of all the nodes of a network, based on noisy distance measurements for those pairs of nodes in range of each other, and on a small fraction of anchor nodes whose actual positions are known a priori. The methods proposed so far in the literature for tackling this non-convex problem do not generally provide accurate estimates. The difficulty of the localization task is exacerbated by the fact that the network is not generally uniquely localizable when its connectivity is not sufficiently high. In order to alleviate this drawback, we propose a two-objective evolutionary algorithm which takes concurrently into account during the evolutionary process both the localization accuracy and certain topological constraints induced by connectivity considerations. The proposed method is tested with different network configurations and sensor setups, and compared in terms of normalized localization error with another metaheuristic approach, namely SAL, based on simulated annealing. The results show that, in all the experiments, our approach achieves considerable accuracies and significantly outperforms SAL, thus manifesting its effectiveness and stability.

}, keywords = {dynacs, Multiobjective evolutionary algorithms, Node localization, Range measurements, Stochastic optimization, wsn}, issn = {1568-4946}, doi = {10.1016/j.asoc.2011.03.012}, author = {Massimo Vecchio and R. L{\'o}pez-Valcarce and Francesco Marcelloni} } @article {Comesana-TIT2010, title = {Asymptotically Optimum Universal Watermark Embedding and Detection in the High-SNR Regime}, journal = {IEEE Transactions on Information Theory}, volume = {56}, number = {6}, year = {2010}, month = {June}, pages = {2804-2815}, keywords = {hypothesis testing, Neyman-Pearson, watermark detection, watermark embedding, watermarking}, author = {Pedro Comesa{\~n}a and Neri Merhav and Mauro Barni} } @article {JayaweeraVazquezMosquera2010, title = {Dynamic spectrum leasing (DSL): A new paradigm for spectrum sharing in cognitive radio networks}, journal = {IEEE Transactions on Vehicular Technology}, volume = {59}, number = {5}, year = {2010}, pages = {2328-2339}, keywords = {cognitive radio, DSL, dynamic spectrum access, dynamic spectrum leasing, dynamic spectrum sharing, game theory, power control}, author = {Sudhaman K. Jayaweera and Gonzalo V{\'a}zquez-Vilar and C. Mosquera} } @conference {ElHowayekJayaweeraHakimVazquezMosquera2010, title = {Dynamic Spectrum Leasing (DSL) in Dynamic Channels}, booktitle = {ICC Workshop on Cognitive Radio Interfaces and Signal Processing (ICC CRISP)}, year = {2010}, month = {May 23}, address = {Cape Town, South Africa}, keywords = {cognitive radio, DSL, dynamic spectrum leasing, game theory, Rayleigh fading, time-varying channels, time-varying secondary system}, author = {Georges El-Howayek and Sudhaman K. Jayaweera and Kamrul Hakim and Gonzalo V{\'a}zquez-Vilar and C. Mosquera} } @article {HakimJayaweeraHowayekMosqueraTWC2010, title = {Efficient Dynamic Spectrum Sharing in Cognitive Radio Networks: Centralized Dynamic Spectrum Leasing (C-DSL)}, journal = {IEEE Transactions on Wireless Communications}, volume = {9}, number = {9}, year = {2010}, pages = {2956-2967}, author = {Kamrul Hakim and Sudhaman K. Jayaweera and Georges El-Howayek and C. Mosquera} } @article {MosqueraValcarceJayaweera2010, title = {Joint NDA Estimation of Carrier Frequency/Phase and SNR for Linearly Modulated Signals}, journal = {IEEE Signal Processing Letters}, volume = {17}, number = {5}, year = {2010}, month = {05/2010}, pages = {517-520}, keywords = {Carrier offset estimation, Cramer-Rao lower bound, expectation-maximization algorithm, SNR estimation}, author = {Wilfried Gappmair and R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {PaperASMS2010, title = {Performance Analysis of Distributed Tracking with Consensus on Noisy Time-Varying Graphs}, booktitle = {Advanced Satellite Multimedia Systems Conference (ASMA)}, year = {2010}, pages = {395-400}, address = {Cagliari, Italy}, keywords = {connectivity graph, distributed local Kalman filtering, distributed tracking, distributed tracking with consensus, graph topology, network theory (graphs), noisy communications links, noisy time-varying graphs, performance analysis, telecommunication links, telecommunication network topology, time-varying network topology, time-varying systems}, author = {Yongxiang Ruan and Sudhaman K. Jayaweera and C. Mosquera} } @article {GonzaloCarlosSudharman2010, title = {Primary User Enters the Game: Performance of Dynamic Spectrum Leasing in Cognitive Radio Networks}, journal = {IEEE Transactions on Wireless Communications}, year = {2010}, author = {Gonzalo V{\'a}zquez-Vilar and C. Mosquera and Sudhaman K. Jayaweera} } @conference {dalgaard-icip10, title = {On the Role of Differentiation for Resampling Detection}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2010}, month = {September}, publisher = {IEEE}, organization = {IEEE}, address = {Hong Kong, China}, keywords = {cyclostationarity, Image forensics, interpolation, prefiltering, resampling detection, watermarking}, author = {Nahuel Dalgaard and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {Alvarez-Diaz-TSP-10, title = {SNR Estimation for Multilevel Constellations Using Higher-Order Moments}, journal = {IEEE Transactions on Signal Processing}, volume = {58}, number = {3, Part 2}, year = {2010}, month = {March}, pages = {1515{\textendash}1526}, keywords = {Blind estimation, higher-order statistics, Moments-based estimation, SNR estimation}, author = {Marcos {\'A}lvarez-D{\'\i}az and R. L{\'o}pez-Valcarce and C. Mosquera} } @article {MosqueraValcarceJayaweera2009, title = {Stepsize Sequence Design for Distributed Average Consensus}, journal = {IEEE Signal Processing Letters}, volume = {17}, number = {2}, year = {2010}, month = {Feb}, pages = {169-172}, author = {C. Mosquera and R. L{\'o}pez-Valcarce and Sudhaman K. Jayaweera} } @conference {dvazquez-icip10, title = {Two-dimensional Statistical Test for the Presence of Almost Cyclostationarity on Images}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2010}, month = {09/2010}, pages = {1745-1748}, publisher = {IEEE}, organization = {IEEE}, address = {Hong Kong, China}, abstract = {

In this work, we study the presence of almost cyclostationary fields in images for the detection and estimation of digital forgeries. The almost periodically correlated fields in the two-dimensional space are introduced by the necessary interpolation operation associated with the applied spatial transformation. In this theoretical context, we extend a statistical time-domain test for presence of cyclostationarity to the two-dimensional space. The proposed method allows us to estimate the scaling factor and the rotation angle of resized and rotated images, respectively. Examples of the output of our method are shown and comparative results are presented to evaluate the performance of the two-dimensional extension.

}, keywords = {cyclostationarity, Image forensics, interpolation, resampling factor estimation, spatial transformation, watermarking}, doi = {10.1109/ICIP.2010.5652513}, author = {David V{\'a}zquez-Pad{\'\i}n and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {VazquezValcarceMosqueraPrelcic2010, title = {Wideband Spectral Estimation from Compressed Measurements Exploiting Spectral a priori Information in Cognitive Radio Systems}, booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2010}, month = {March 14-19}, address = {Dallas, U.S.A.}, keywords = {cognitive radio, compressive sampling, Spectral estimation}, author = {Gonzalo V{\'a}zquez-Vilar and R. L{\'o}pez-Valcarce and C. Mosquera and Nuria Gonz{\'a}lez-Prelcic} } @article {ValcarceMosqueraTCOM08, title = {Cramer-Rao Lower Bound and EM Algorithm for Envelope-Based SNR Estimation of Nonconstant Modulus Constellations}, journal = {IEEE Transactions on Communications}, volume = {57}, number = {6}, year = {2009}, month = {june}, pages = {1622 - 1627}, author = {Wilfried Gappmair and R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {JayaweeraMosqueraAsilomar2009, title = {A Dynamic Spectrum Leasing (DSL) Framework for Spectrum Sharing in Cognitive Radio Networks}, booktitle = {Asilomar Conference on Signals, Systems and Computers}, year = {2009}, author = {Sudhaman K. Jayaweera and C. Mosquera} } @conference {paperBroadbandWorkshop2009, title = {A Unified Framework for Dynamic Spectrum Leasing (DSL) in Cognitive Radios}, booktitle = {IEEE Broadband Wireless Access Workshop}, year = {2009}, note = {colocated with Globecom}, author = {Sudhaman K. Jayaweera and Kamrul Hakim and C. Mosquera} } @conference {spie08, title = {Asymptotically optimum embedding strategy for one-bit watermarking under Gaussian attacks}, booktitle = {Security, Steganography, and Watermarking of Multimedia Contents}, series = {Proc. of SPIE}, volume = {6819}, year = {2008}, month = {January}, publisher = {SPIE}, organization = {SPIE}, address = {San Jose, CA, USA}, author = {Pedro Comesa{\~n}a and Neri Merhav and Mauro Barni}, editor = {Edward J. Delp and Ping W. Wong and Jana Dittmann and Nasir D. Memon} } @conference {ih08, title = {Distortion Optimization of Model-Based Secure Embedding Schemes for Data-Hiding}, booktitle = {International Workshop on Information Hiding (IH)}, year = {2008}, month = {May}, address = {Santa Barbara, CA, U.S.A.}, keywords = {data hiding, Distortion Optimization, Secure Embedding}, author = {Benjamin Mathon and Patrick Bas and Fran{\c c}ois Cayre and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Mosquera08a, title = {Distributed Estimation: Do Not Trust Gossips}, booktitle = {Sensor, Signal and Information Processing (SenSIP) Workshop}, year = {2008}, address = {Sedona (Arizona)}, keywords = {distributed estimation, sensor network}, author = {C. Mosquera and Sudhaman K. Jayaweera} } @conference {Mosquera08c, title = {Distributed Estimation with Noisy Exchanges}, booktitle = {IEEE International Workshop on Signal Processing Advances in Wireless Communications}, year = {2008}, address = {Recife, Brazil}, keywords = {distributed estimation, sensor network}, author = {C. Mosquera and R. L{\'o}pez-Valcarce and Sudhaman K. Jayaweera} } @article {MosqueraSPL08, title = {Distributed Sequential Estimation with Noisy, Correlated Observations}, journal = {IEEE Signal Processing Letters}, volume = {15}, year = {2008}, author = {Sudhaman K. Jayaweera and C. Mosquera} } @conference {Mosquera08b, title = {Entangled Kalman Filters for Cooperative Estimation}, booktitle = {IEEE Sensor Array and Multichannel Signal Processing Workshop}, year = {2008}, address = {Darmstadt (Germany)}, keywords = {distributed estimation, sensor network}, author = {C. Mosquera and Sudhaman K. Jayaweera} } @conference {ValcarceMosquera08a, title = {Maximum Likelihood SNR Estimation for Asynchronously Oversampled OFDM Signals}, booktitle = {IEEE International Workshop on Signal Processing Advances in Wireless Communications}, year = {2008}, address = {Recife, Brazil}, keywords = {estimation, ML, OFDM, SNR}, author = {R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {GappmairCNSDSP08, title = {ML and EM Algorithm for non-data-aided SNR Estimation of Linearly Modulated Signals}, booktitle = {International Symposium on Communication Systems, Networks and Signal Processing (CNSDSP)}, year = {2008}, pages = {530-534}, keywords = {EM, ML, SNR estimation}, author = {Wilfried Gappmair and R. L{\'o}pez-Valcarce and C. Mosquera} } @article {MosqueraTSP07, title = {Non-Data-Aided Symbol Rate Estimation of Linearly Modulated Signals}, journal = {IEEE Transactions on Signal Processing}, year = {2008}, month = {February}, author = {C. Mosquera and Sandro Scalise and R. L{\'o}pez-Valcarce} } @article {PerezMosqueraTIFS08, title = {Quantization-Based Data-Hiding Robust to Linear Time-Invariant Filtering}, journal = {IEEE Transactions on Information Forensics and Security}, volume = {3}, number = {2}, year = {2008}, month = {June}, pages = {137-152}, keywords = {data-hiding, watermarking}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera} } @conference {ASMS08, title = {SNR Estimation with Heterogeneous Frames}, booktitle = {Advanced Satellite Mobile Systems Conference}, year = {2008}, month = {August 26-28}, address = {Bologna, Italy}, author = {Marcos {\'A}lvarez-D{\'\i}az and R. L{\'o}pez-Valcarce and C. Mosquera} } @book {Artes07book, title = {Comunicaciones Digitales}, year = {2007}, month = {May}, publisher = {Pearson - Prentice Hall}, organization = {Pearson - Prentice Hall}, author = {Antonio Art{\'e}s-Rodr{\'\i}guez and Fernando P{\'e}rez-Gonz{\'a}lez and Jes{\'u}s Cid-Sueiro and R. L{\'o}pez-Valcarce and C. Mosquera and Fernando P{\'e}rez-Cruz} } @inbook {Mosquera07sat, title = {Digital Satellite Communications}, year = {2007}, publisher = {Springer}, organization = {Springer}, chapter = {Parameter Estimation and Synchronization}, author = {C. Mosquera and M. L. Boucheret and M. Bousquet and S. Cioni and Wilfried Gappmair and R. Pedone and Sandro Scalise and P. Skoutaridis and M. Villanti} } @inbook {Pedone07sat, title = {Digital Satellite Communications}, year = {2007}, publisher = {Springer}, organization = {Springer}, chapter = {Theoretical Background}, author = {R. Pedone and G. Albertazzi and P.T. Mathiopoulos and C. Mosquera and N. Sagias and M. Villanti} } @inbook {Chap4_Book_Corazza07, title = {Digital Satellite Communications}, year = {2007}, month = {April}, pages = {-}, publisher = {Springer}, organization = {Springer}, chapter = {Satellite Channel Impairments}, address = {New York}, author = {Sandro Scalise and L. Castanet and M. Luglio and Neri, Massimo and Marcos {\'A}lvarez-D{\'\i}az and J. Bito and M. Bousquet and I. Frigyes and P. Horvath and Axel Jahn and M. Krejcarek and J. Lemorton and S. Morosi and M. A. V{\'a}zquez-Castro} } @conference {ValcarceSPAWC07, title = {Iterative Envelope-Based SNR Estimation for Non-Constant Modulus Constellations}, booktitle = {IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2007}, keywords = {EM, SNR, synchronization}, author = {R. L{\'o}pez-Valcarce and C. Mosquera and Wilfried Gappmair} } @conference {IWSSC07, title = {Non-Linear Interference Mitigation for Broadband Multimedia Satellite Systems}, booktitle = {International Workshop on Satellite and Space Communications (IWSSC)}, year = {2007}, month = {September 13-14}, address = {Salzburg, Austria}, author = {Marcos {\'A}lvarez-D{\'\i}az and Nicolas Courville and C. Mosquera and Gianluigi Liva and Giovanni Emanuele Corazza} } @conference {MosqueraIWSSC07, title = {Satellite Communications: Research Trends and Open Issues}, booktitle = {International Workshop on Satellite and Space Communications (IWSSC)}, year = {2007}, keywords = {satellite communications}, author = {Alessandro Vanelli-Coralli and Giovanni Emanuele Corazza and G.K. Karagiannidis and P.T. Mathiopoulos and D.S. Michalopoulos and C. Mosquera and S. Papaharalabos and Sandro Scalise} } @conference {spie07:security, title = {Security of Spread-Spectrum-Based Data Hiding}, booktitle = {Security, Steganography, and Watermarking of Multimedia Contents}, series = {Proc. of SPIE}, year = {2007}, month = {January}, publisher = {SPIE}, organization = {SPIE}, address = {San Jose, California, USA}, keywords = {data-hiding, security, watermarking}, author = {Luis P{\'e}rez-Freire and Pierre Moulin and Fernando P{\'e}rez-Gonz{\'a}lez}, editor = {Edward J. Delp and Ping W. Wong} } @article {ValcarceCL07, title = {Sixth-Order Statistics-Based Non-Data-Aided SNR Estimation}, journal = {IEEE Communications Letters}, volume = {11}, number = {4}, year = {2007}, month = {April}, pages = {351-353}, author = {R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {uvigo:gaussphase, title = {Blind carrier phase estimation for non-equiprobable constellations}, booktitle = {IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2006}, address = {Cannes, France}, keywords = {Digital Communications, phase estimation, signal shaping, synchronization, Tomlinson-Harashima precoding}, author = {R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {spie05:dftrdm, title = {High-rate quantization data hiding robust to arbitrary linear filtering attacks}, booktitle = {Security, Steganography, and Watermarking of Multimedia Contents}, series = {Proc. of SPIE}, volume = {5306}, year = {2006}, month = {January}, pages = {592-601}, publisher = {SPIE}, organization = {SPIE}, address = {San Jose, California, USA}, keywords = {data-hiding, watermarking}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera and Marcos {\'A}lvarez-D{\'\i}az and Reginald Lagendijk}, editor = {Edward J. Delp and Ping W. Wong} } @article {abrardo06, title = {Improving the performance of RDM watermarking by means of trellis coded quantisation}, journal = {IEE Proceedings on Information Security}, volume = {153}, number = {3}, year = {2006}, month = {September}, pages = {107-114}, keywords = {data-hiding, watermarking}, author = {Andrea Abrardo and Mauro Barni and Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera} } @conference {malvido06barcodes, title = {A novel model for the print-and-capture channel in 2D bar codes}, booktitle = {International Workshop on Multimedia Content Representation, Classification and Security}, series = {Lecture Notes in Computer Science}, volume = {4105}, year = {2006}, month = {September}, pages = {627-634}, publisher = {Springer-Verlag Heidelberg}, organization = {Springer-Verlag Heidelberg}, address = {Istambul, Turkey}, keywords = {bar-codes, visible-encryption}, author = {Alberto Malvido and Fernando P{\'e}rez-Gonz{\'a}lez and Armando Cousi{\~n}o}, editor = {Bilge Gunsel and Anil K. Jain and A. Murat Tekalp and B{\"u}lent Sankur} } @conference {Mosquera06, title = {Symbol-Rate Estimation for DVB-S2 Broadcasting}, booktitle = {International Workshop on Signal Processing for Space Communications (SPSC)}, year = {2006}, keywords = {DVB, symbol rate, synchronization}, author = {C. Mosquera and Sandro Scalise and R. L{\'o}pez-Valcarce} } @conference {Alvarez06, title = {Trellis Shaping Techniques for Satellite Telecommunication Systems}, booktitle = {International Workshop on Satellite and Space Communications (IWSSC)}, year = {2006}, month = {September}, address = {Legan{\'e}s, Spain}, keywords = {Digital Communications, precoding, satellite communications}, author = {Marcos {\'A}lvarez-D{\'\i}az and Neri, Massimo and C. Mosquera and Giovanni Emanuele Corazza} } @conference {spie05:rdm, title = {Ensuring Gain Invariance in High-Rate Data-Hiding}, booktitle = {Security, Steganography, and Watermarking of Multimedia Contents}, series = {Proc. of SPIE}, volume = {5306}, year = {2005}, month = {January}, pages = {592-601}, publisher = {SPIE}, organization = {SPIE}, address = {San Jose, California, USA}, keywords = {data-hiding, watermarking}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera and Mauro Barni and Andrea Abrardo}, editor = {Edward J. Delp and Ping W. Wong} } @article {uvigo:tsp-rdm, title = {Rational Dither Modulation: a high-rate data-hiding method robust to gain attacks}, journal = {IEEE Transactions on Signal Processing}, volume = {53}, number = {10}, year = {2005}, note = {Third supplement on secure media}, month = {October}, pages = {3960-3975}, keywords = {data-hiding, watermarking}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera and Mauro Barni and Andrea Abrardo} } @conference {uvigo:bias, title = {Bias analysis and removal of a microphone array based road traffic speed estimator}, booktitle = {European Signal Processing Conference (EUSIPCO)}, year = {2004}, address = {Vienna, Austria}, keywords = {microphone arrays, speed estimation, traffic monitoring}, author = {R. L{\'o}pez-Valcarce and D. Hurtado and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {uvigo:speedestjnl, title = {Estimation of road vehicle speed using two omnidirectional microphones: a maximum likelihood approach}, journal = {EURASIP Journal of Applied Signal Processing}, volume = {2004}, number = {8}, year = {2004}, month = {August}, pages = {1059{\textendash}1077}, keywords = {microphone arrays, speed estimation, traffic monitoring}, author = {R. L{\'o}pez-Valcarce and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {IEEEVTC{\textquoteright}04, title = {Performance of Coding and Synchronization Schemes for a DVB-S Based Air-Interface in the Railway Environment}, booktitle = {Vehicular Technology Conference (VTC)}, volume = {1}, year = {2004}, month = {May 17-19}, pages = {347-351}, address = {Milano, Italy}, keywords = {Digital Communications, DVB-S, satellite communications}, author = {Sandro Scalise and Giorgio Sciascia and Marcos {\'A}lvarez-D{\'\i}az and Harald Ernst and Rodolfo Mura} } @conference {Mosquera04a, title = {POLI-MAS: Power-Line Multichannel Audio System}, booktitle = {International Symposium on Power Line Communications and Its Applications (ISPLC)}, year = {2004}, keywords = {audio, multichannel, PLC}, author = {Fernando J. Mato-M{\'e}ndez and C. Mosquera} } @conference {mmsp04:rdm, title = {Rational Dither Modulation: a novel data-hiding method robust to value-metric attacks}, booktitle = {IEEE International Workshop on Multimedia Signal Processing}, year = {2004}, month = {29 Sept - 1 Oct}, pages = {139-142}, address = {Siena, Italy}, keywords = {data-hiding, watermarking}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and Mauro Barni and Andrea Abrardo and C. Mosquera} } @conference {IST{\textquoteright}03, title = {Characterization of the Railroad Satellite Channel within the FIFTH Project}, booktitle = {IST Mobile \& Wireless Communications Summit}, year = {2003}, month = {June 15-18}, address = {Aveiro, Portugal}, keywords = {Digital Communications, satellite communications}, author = {Sandro Scalise and Marcos {\'A}lvarez-D{\'\i}az and Giorgio Sciascia and Rodolfo Mura} } @conference {Baiona{\textquoteright}03, title = {DVB-S Air Interface over Railroad Satellite Channel: Performance and Extensions}, booktitle = {Baiona Workshop on Signal Processing in Communications}, year = {2003}, month = {September 8-10}, address = {Baiona, Spain}, keywords = {Digital Communications, DVB-S, satellite communications}, author = {Marcos {\'A}lvarez-D{\'\i}az and Sandro Scalise and Giorgio Sciascia and Rodolfo Mura and Paolo Conforto and Harald Ernst} } @conference {Mosquera03c, title = {Feedback Timing Synchronization for IF-Sampled Systems}, booktitle = {International Workshop on Signal Processing for Space Communications (SPSC)}, year = {2003}, keywords = {PLC}, author = {C. Mosquera and M. Cacheda} } @conference {Mosquera03b, title = {Indoor Image Acquisition and Distribution System}, booktitle = {International Symposium on Power Line Communications and Its Applications (ISPLC)}, year = {2003}, keywords = {PLC}, author = {D. Fondo and M. Cacheda and C. Mosquera} } @conference {ASMS{\textquoteright}03, title = {Link Design for Satellite Based Services in the Fast Train Environment}, booktitle = {International Conference on Advanced Satellite Mobile Systems (ASMS)}, year = {2003}, month = {July 10-11}, address = {ESRIN, Frascati, Italy}, keywords = {Digital Communications, satellite communications}, author = {Sandro Scalise and Paolo Conforto and Marcos {\'A}lvarez-D{\'\i}az and Giorgio Sciascia and Rodolfo Mura and Harald Ernst} } @conference {ICSSC{\textquoteright}03, title = {Link Performance for Mobile Satellite Based Services in Ku-Band}, booktitle = {AIAA International Communications Satellite Systems Conference (ICSSC)}, year = {2003}, month = {April 15-19}, address = {Yokohama, Japan}, keywords = {Digital Communications, satellite communications}, author = {Giorgio Sciascia and Sandro Scalise and Harald Ernst and Marcos {\'A}lvarez-D{\'\i}az and Matthias Holzbock and Rodolfo Mura} } @conference {Mosquera03a, title = {A low complexity all-digital DS-SS transceiver for power-line communications}, booktitle = {International Symposium on Power Line Communications and Its Applications (ISPLC)}, year = {2003}, keywords = {DS-SS, modem, PLC}, author = {M. Ferreiro and M. Cacheda and C. Mosquera} } @conference {VTC{\textquoteright}04, title = {Performance of DVB-S Air-Interface over Land Mobile Satellite Channel at Ku-Band for Fast Trains}, booktitle = {International Workshop on Signal Processing for Space Communications (SPSC)}, year = {2003}, month = {September 24-26}, address = {Catania, Italia}, keywords = {Digital Communications, DVB-S, satellite communications}, author = {Marcos {\'A}lvarez-D{\'\i}az and Sandro Scalise and Giorgio Sciascia and Rodolfo Mura and Paolo Conforto and Vincenzo Schena and Harald Ernst} } @conference {uvigo:speedest, title = {Road vehicle speed estimation from a two-microphone array}, booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, volume = {2}, year = {2002}, pages = {1321{\textendash}1324}, address = {Orlando, FL, USA}, keywords = {microphone arrays, speed estimation, traffic monitoring}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and R. L{\'o}pez-Valcarce and C. Mosquera} } @conference {Mosquera02, title = {Spectral characterization of feedback linear periodically time-varying systems}, booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2002}, keywords = {burst, inversion, LPTV, PLL}, author = {C. Mosquera and Sandro Scalise and G. Taricco} } @article {Mosquera01c, title = {Adaptive IIR Filters for Active Noise Control}, journal = {International Journal of Acoustics and Vibration}, volume = {6}, year = {2001}, pages = {3-10}, keywords = {ANC, IIR, SPR}, author = {C. Mosquera and J.A. G{\'o}mez and Fernando P{\'e}rez-Gonz{\'a}lez and M. Sobreira and E. Alexandre} } @article {Mosquera01b, title = {Algebraic solution to the robust SPR problem for two polynomials}, journal = {Automatica}, volume = {37}, year = {2001}, month = {may}, keywords = {robust, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Prelcic01a, title = {A Channel Model for the Galician Low Voltage Main Network}, booktitle = {International Symposium on Power Line Communications and Its Applications (ISPLC)}, year = {2001}, month = {April}, address = {Malmo, Sweden}, author = {Nuria Gonz{\'a}lez-Prelcic and C. Mosquera and Norberto Degara-Quintela and A. Currais} } @article {Mosquera01a, title = {On the strengthened robust SPR problem for discrete-time systems}, journal = {Automatica}, volume = {37}, year = {2001}, month = {apr}, pages = {625-628}, keywords = {robust, SPR, strengthened}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Mosquera_Scalise01, title = {Time-transfer performance in burst-mode communication systems}, booktitle = {International Workshop on Digital Signal Processing Techniques for Space Communications (DSP)}, year = {2001}, keywords = {burst, PLL, synchronization}, author = {C. Mosquera and Sandro Scalise and G. Taricco and D. Giunta} } @article {Mosquera01d, title = {Time-transfer performance in burst-mode communication systems}, journal = {IEEE Journal on Selected Areas in Communications}, volume = {19}, year = {2001}, month = {dec}, pages = {2310-2319}, keywords = {burst, PLL, synchronization}, author = {C. Mosquera and Sandro Scalise and G. Taricco and G. Garofalo and D. Giunta} } @article {arbox_journal, title = {ArboX, a Contribution to Digital Library}, journal = {Computer Applications in Engineering Education}, volume = {8}, number = {3{\textendash}4}, year = {2000}, month = {Oct{\textendash}Dec}, pages = {216{\textendash}220}, author = {O.W. M{\'a}rquez and F{\'e}lix Balado and M. V{\'a}zquez and D. Docampo} } @article {Mosquera00, title = {Convergence analysis of the multiple-channel filtered-U recursive LMS algorithm for active noise control}, journal = {Signal Processing}, volume = {80}, year = {2000}, pages = {849-856}, keywords = {ANC, FuRLMS, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {arbox, title = {ArboX, a Contribution to Digital Library}, booktitle = {International Conference on Engineering and Computer Education (ICECE)}, year = {1999}, month = {August}, publisher = {IEEE Education Society}, organization = {IEEE Education Society}, address = {Rio de Janeiro, Brazil}, author = {O.W. M{\'a}rquez and F{\'e}lix Balado and M. V{\'a}zquez and D. Docampo} } @article {uvigo:polyjnl, title = {Hyperstable adaptive IIR algorithms with polyphase structures: analysis and design}, journal = {IEEE Transactions on Signal Processing}, volume = {47}, number = {7}, year = {1999}, month = {July}, pages = {2043{\textendash}2046}, keywords = {adaptive IIR filters, system identification}, author = {R. L{\'o}pez-Valcarce and C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {uvigo:polycnf, title = {Hyperstable polyphase adaptive IIR filters}, booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, volume = {4}, year = {1999}, pages = {1841{\textendash}1844}, address = {Phoenix, AZ, USA}, keywords = {adaptive IIR filters, system identification}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez and R. L{\'o}pez-Valcarce} } @conference {Mosquera_Perez99, title = {IIR adaptive filters for active noise control}, booktitle = {International Congress on Sound and Vibration}, year = {1999}, address = {Copenhagen, Denmark}, keywords = {ANC, IIR, SPR}, author = {C. Mosquera and J.A. G{\'o}mez and Fernando P{\'e}rez-Gonz{\'a}lez and M. Sobreira} } @article {Mosquera99, title = {The robust SPR problem: design algorithms and new applications}, journal = {Signal Processing}, volume = {76}, year = {1999}, pages = {269-283}, keywords = {robust, SPR}, author = {C. Mosquera and L. Leyra and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {fwan, title = {A Two-Stage Codebook Building Method Using Fast WAN}, booktitle = {International Conference on Image Analysis and Processing (ICIAP)}, year = {1999}, month = {September}, pages = {1047{\textendash}1050}, publisher = {IEEE Computer Society}, organization = {IEEE Computer Society}, address = {Venice, Italy}, author = {F{\'e}lix Balado and O.W. M{\'a}rquez} } @conference {Mosquera98d, title = {An approach to the robust SPR problem through interpolation and avoidance: connections with the robust stability problem}, booktitle = {American Control Conference}, year = {1998}, keywords = {avoidance, interpolation, robust, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {uvigo:notebias, title = {On the bias of the modified output error algorithm}, journal = {IEEE Transactions on Automatic Control}, volume = {43}, number = {9}, year = {1998}, month = {September}, pages = {1261{\textendash}1262}, keywords = {adaptive IIR filters, system identification}, author = {C. Mosquera and R. L{\'o}pez-Valcarce and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Mosquera98b, title = {Filtered error adaptive IIR algorithms and their application to active noise control}, booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {1998}, keywords = {adaptive, IIR, SPR}, author = {C. Mosquera and J.A. G{\'o}mez and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Prelcic98a, title = {A Flexible Structure for Wavelet Packet-based Subband Adaptive Equalization}, booktitle = {IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis}, year = {1998}, month = {October}, pages = {377{\textendash}380}, address = {Pittsburgh, USA}, author = {Nuria Gonz{\'a}lez-Prelcic and Fernando P{\'e}rez-Gonz{\'a}lez and A.B. Mosquera-Gonz{\'a}lez} } @mastersthesis {Mosquera98, title = {Relaxation of the SPR condition with applications to the convergence of adaptive recursive algorithms}, year = {1998}, school = {University of Vigo, Spain}, type = {phd}, author = {C. Mosquera} } @inbook {Mosquera_Perez98d, title = {The Simultaneous Strict Positive Real Problem: Similarities with the Simultaneous Stability Problem and Applications in Adaptive Recursive Algorithms}, booktitle = {Mathematics in Signal Processing}, year = {1998}, pages = {139-148}, publisher = {Oxford University Press}, organization = {Oxford University Press}, keywords = {robust, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez}, editor = {J.G. McWhirter and I.K. Proudler} } @conference {Mosquera98c, title = {On the strengthened robust SPR problem for discrete-time systems}, booktitle = {American Control Conference}, year = {1998}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {MosqueraPerez97b, title = {An Algorithm for Interpolation with Positive Rational Functions on the Imaginary Axis}, journal = {Automatica}, volume = {33}, year = {1997}, pages = {2277-2280}, keywords = {interpolation, SPR}, author = {C. Mosquera and Fernando P{\'e}rez-Gonz{\'a}lez} } @inbook {Mosquera_Perez97a, title = {Analysis and Synthesis Tools for Robust SPRness}, booktitle = {Intelligent methods in signal processing and communications}, year = {1997}, pages = {147-171}, publisher = {Birkhauser}, organization = {Birkhauser}, keywords = {robust, SPR}, author = {C. Mosquera and Juan R. Hern{\'a}ndez and Fernando P{\'e}rez-Gonz{\'a}lez}, editor = {A. Figueiras and D. Docampo and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {Perez_Mosquera96, title = {Characterization and Algebraic Solution to the Extreme-Point Robust SPR Problem}, booktitle = {IFAC World Congress}, year = {1996}, pages = {391-396}, address = {San Francisco, CA, USA}, keywords = {robust, SPR}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera} } @conference {uviwave2, title = {An Interactive Software for a Hypertext Course in Wavelets}, booktitle = {IEEE Digital Signal Processing Workshop (DSP)}, year = {1996}, month = {September}, address = {Loen, Norway}, author = {O.W. M{\'a}rquez and Nuria Gonz{\'a}lez-Prelcic} } @conference {uviwave1, title = {Uvi_Wave, the Ultimate Toolbox for Wavelet Transforms and Filter Banks}, booktitle = {Baiona Workshop on Intelligent Methods in Signal Processing and Communication}, year = {1996}, month = {June}, address = {Baiona, Spain}, author = {Nuria Gonz{\'a}lez-Prelcic and O.W. M{\'a}rquez} } @conference {Perez_Mosquera95, title = {Algebraic LTI Filter Synthesis for Simultaneously Making a Convex Combination of Discrete-Time Plants SPR}, booktitle = {IEEE Conference on Decision and Control (CDC)}, year = {1995}, pages = {780-781}, address = {New Orleans, LA}, keywords = {robust, SPR}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and C. Mosquera} }