@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 {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} } @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} } @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} } @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} } @conference {971, title = {Dynamic Attribute-Based Privacy-Preserving Genomic Susceptibility Testing}, booktitle = {34th Annual ACM Symposium on Applied Computing, SAC 2019}, year = {2019}, month = {04/2019}, address = {Limassol, Cyprus}, author = {Mina Namazi and Cihan Eryonucu and Erman Ayday and Fernando P{\'e}rez-Gonz{\'a}lez} } @article {947, title = {MMSE filter design for Full-Duplex filter-and-forward MIMO relays under limited dynamic range}, journal = {Signal Processing}, volume = {156}, year = {2019}, month = {03/2019}, pages = {208-219}, abstract = {
We study the problem of optimizing the end-to-end performance of a full-duplex filter-and-forward MIMO relay link, consisting
of a source, a relay, and a destination node, by employing linear filtering at each node. The system model accounts for multipath
propagation and self-interference at the relay, as well as transmitter impairments and limited dynamic range at every node. The
design accommodates signals with arbitrary spectra and includes the direct link between the source and destination nodes. Under
the minimum mean square error criterion, the resulting non-convex problem is approximated by a sequence of convex problems
and solved by means of an alternating minimization method. Linear constraints allocate some of the degrees of freedom in the relay
to guarantee a sufficiently small residual self-interference. Simulations quantify the impact of degrees of freedom, the dynamic
range, and the balance between direct and relay paths on the link performance.
}, keywords = {adaptive signal processing, full-duplex, winter}, doi = {doi.org/10.1016/j.sigpro.2018.11.001}, author = {Emilio Antonio-Rodr{\'\i}guez and Stefan Werner and R. L{\'o}pez-Valcarce and Risto Wichman} } @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 {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 {1036, title = {Bit allocation for increased power efficiency in 5G receivers with variable-resolution ADCs}, booktitle = {2017 Information Theory and Applications Workshop (ITA)}, year = {2017}, month = {feb}, pages = {1{\textendash}7}, keywords = {5G mobile communication, analogue-digital conversio}, author = {b. Abbas, W and Gomez-Cuba, F and Zorzi, M} } @article {871, title = {CDMA-based Acoustic Local Positioning System for Portable Devices with Multipath Cancellation}, journal = {Digital Signal Processing}, volume = {62}, year = {2017}, month = {03/2017}, pages = {38-51}, abstract = {
This paper presents an acoustic local positioning system (ALPS) suitable for indoor positioning
of portable devices such as smartphones or tablets, based on the transmission of high frequency
CDMA-coded signals from a fixed network of beacons. The main novelty of the proposed ALPS is
its capability to mitigate the effects of multipath propagation by performing an accurate estimation
of the Line-of-Sight Time-of-Flights (LOS-TOF) through the Matching Pursuit algorithm. Signal
detection, multipath cancellation and positioning estimation all take place within the portable device,
which provides a graphical representation of the updated position in less than a second. The
performance of the Matching Pursuit algorithm is analyzed in a real scenario and the results show
that the proposed method is capable to retrieve the multipath-free System Availability under strong
multipath conditions with SNR levels as low as 0 dB.
}, keywords = {compass, wsn}, issn = {1051-2004}, doi = {10.1016/j.dsp.2016.11.001}, author = {Fernando J. Alvarez and Teodoro Aguilera and R. L{\'o}pez-Valcarce} } @conference {1042, title = {Millimeter Wave Receiver Comparison Under Energy vs Spectral Efficiency Trade-off}, booktitle = {European Wireless 2017; 23th European Wireless Conference}, year = {2017}, pages = {1{\textendash}7}, author = {Abbas, W B and Gomez-Cuba, F and Zorzi, M} } @conference {924, title = {Time-domain channel estimation for wideband millimeter wave systems with hybrid architecture}, booktitle = { IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2017}, month = {03/2017}, pages = {6193-6197}, abstract = {

Millimeter wave (mm Wave) systems will likely employ large antennas at both the transmitter and receiver for directional beamforming. Hybrid analog/digital MIMO architectures have been proposed previously for leveraging both array gain and multiplexing gain, while reducing the power consumption in analog-to-digital converters. Channel knowledge is needed to design the hybrid precoders/combiners, which is difficult to obtain due to the large antenna arrays and the frequency selective nature of the channel. In this paper, we propose a sparse recovery based time-domain channel estimation technique for hybrid architecture based frequency selective mmWave systems. The proposed compressed sensing channel estimation algorithm is shown to provide good estimation error performance, while requiring small training overhead. The simulation results show that using multiple RF chains at the receiver and the transmitter further reduces the training overhead.

}, keywords = {compass, mmWave, myrada}, author = {Kiran Venugopal and Ahmed Alkhateeb and Robert W. Heath Jr. and Nuria Gonz{\'a}lez-Prelcic} } @article {838, title = {Wideband full-duplex MIMO relays with blind adaptive self-interference cancellation}, journal = {Signal Processing}, volume = {130}, year = {2017}, month = {01/2017}, pages = {74-85}, chapter = {74}, abstract = {
We develop adaptive self-interference cancellation algorithms for both filter-and-forward and decode-and-forward
multiple-input multiple-output relays. The algorithms are blind in the sense that they only exploit the spectral properties
of the transmitted signal to identify the self-interference channel, while dealing with frequency-selective channels and
arbitrary signal spectra. Our approach is non-intrusive in the sense that the algorithms can successfully identify, track,
and cancel the self-interference distortion while the relay is operating in its normal mode. We study the stationary
points of the algorithms and analyze under which conditions they achieve perfect cancellation of the self-interference.
Simulation results show that the algorithms provide residual self-interference levels below the noise floor by using
the time samples of only a few OFDM symbols.
}, keywords = {adaptive signal processing, compass, full duplex, winter}, issn = {0165-1684}, doi = {10.1016/j.sigpro.2016.06.010}, author = {Emilio Antonio-Rodr{\'\i}guez and Stefan Werner and R. L{\'o}pez-Valcarce and Taneli Riihonen and Risto Wichman} } @conference {886, title = {Co-creating Security-and-Privacy-by-Design Systems}, booktitle = {International Conference on Availability, Reliability and Security (ARES)}, year = {2016}, month = {09/2016}, pages = {768-775}, address = {Salzburg, Germany}, author = {Sauro Vicini and Francesco Alberti and Nicol{\'a}s Notario and Alberto Crespo and Juan Ram{\'o}n Troncoso-Pastoriza and Alberto Sanna} } @article {825, title = {Compressive Covariance Sensing: Structure-Based Compressive Sensing Beyond Sparsity}, journal = {IEEE Signal Processing Magazine}, volume = {33}, year = {2016}, month = {01/2016}, pages = {78--93}, abstract = {
Compressed sensing deals with the reconstruction of signals
from sub-Nyquist samples by exploiting the sparsity of their
projections onto known subspaces. In contrast, the present
article is concerned with the reconstruction of second-order
statistics, such as covariance and power spectrum, even in
the absence of sparsity priors. The framework described here
leverages the statistical structure of random processes to
enable signal compression and offers an alternative perspective
at sparsity-agnostic inference. Capitalizing on parsimonious
representations, we illustrate how compression and reconstruction
tasks can be addressed in popular applications such
as power spectrum estimation, incoherent imaging, direction
of arrival estimation, frequency estimation, and wideband
spectrum sensing.
}, keywords = {compass, compressed sensing}, author = {Daniel Romero and Dyonisius D Ariananda and Zhi Tian and Geert Leus} } @article {873, title = {Data Hiding Robust to Mobile Communication Vocoders}, journal = {IEEE Transactions on Multimedia}, volume = {18}, year = {2016}, month = {12/2016}, pages = {2345-2357}, doi = {10.1109/TMM.2016.2599149}, author = {Reza Kazemi and Fernando P{\'e}rez-Gonz{\'a}lez and Mohamed Ali Akhaee and Fereydoon Behnia} } @conference {860, title = {Estimating millimeter wave channels using out-of-band measurements}, booktitle = {Information Theory and Applications Workshop (ITA}, year = {2016}, month = {January, 2016}, keywords = {compass, mmWave}, author = {Anum Ali and Nuria Gonz{\'a}lez-Prelcic and R.W. Heath Jr.} } @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.} } @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 {1045, title = {On the analysis of scheduling in dynamic duplex multi-hop mmWave cellular systems}, journal = {IEEE Transactions on Wireless Communications}, volume = {14}, year = {2015}, month = {jun}, pages = {6028 {\textendash} 6042}, author = {Garc{\'\i}a-Rois, Juan and Gomez-Cuba, Felipe and Akdeniz, Mustafa Riza and Gonz{\'a}lez-Casta{\~n}o, Francisco Javier and Burguillo-Rial, Juan Carlos and Rangan, Sundeep and Lorenzo, Beatriz} } @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} } @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 {809, title = {Multipath cancellation in broadband acoustic local positioning systems}, booktitle = {IEEE 9th International Symposium on Intelligent Signal Processing (WISP)}, year = {2015}, month = {05/2015}, publisher = {IEEE}, organization = {IEEE}, address = {Siena, Italy}, abstract = {

This work proposes a novel method to estimate the Line-of-Sight Time-of-Flights (LOS-TOFs) in a broadband acoustic local positioning system (ALPS) with strong multipath interference. The proposed method is based on the Matching Pursuit channel estimation algorithm that provides a low complexity approximation to the Maximum Likelihood solution for sparse channels. A multichannel version of this algorithm has been implemented to estimate a minimum of three coefficients in the channel responses of a particular ALPS, composed of four beacons that perform the simultaneous emission of BPSK modulated 255-bit Kasami codes. A statistical analysis of performance has been carried out by using a set of test signals synthetically generated to simulate different positions and reflection coefficients of the environment. The results of this analysis show the enhanced capability of the proposed method to estimate the LOS-TOFs under strong multipath interference, with respect to that of a classical system based on correlation + thresholding.

}, keywords = {compass, wsn}, doi = {10.1109/WISP.2015.7139174}, author = {Fernando J. Alvarez and R. L{\'o}pez-Valcarce} } @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 {808, title = {Subspace-constrained SINR optimization in MIMO full-duplex relays under limited dynamic range}, booktitle = {IEEE 16th Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2015}, month = {06/2015}, publisher = {IEEE}, organization = {IEEE}, address = {Stockholm, Sweden}, abstract = {
We propose a method for maximizing the signal-to-interference-plus-noise ratio (SINR) in a wideband full-duplex MIMO regenerative relay that accounts limited dynamic range of the receiver and transmitter impairments. Transmit and receive filters are designed at the relay, by means of an alternating minimization algorithm, to minimize the interference at the decoder input in the destination node. We impose channel shortening and subspace constraints to ensure that the received signal at the destination is not compromised. Simulation results show that the presented method significantly outperforms other constrained approaches.
}, keywords = {adaptive signal processing, compass, full duplex}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce and Taneli Riihonen and Stefan Werner and Risto Wichman} } @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 {762, title = {Cooperative compressive power spectrum estimation}, booktitle = {IEEE Sensor Array Multichannel Signal Process. Workshop (SAM)}, year = {2014}, keywords = {cognitive radio, wsn}, author = {Dyonisius D Ariananda and Daniel Romero and Geert Leus} } @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} } @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.} } @mastersthesis {778, title = {On-Ground Processing for Spectral Efficiency Improvement in Next Generation Satellite Communications}, year = {2014}, school = {Universidade de Vigo}, type = {PhD thesis}, address = {Vigo, Spain}, abstract = {
The eternal demand of improved spectrum exploitation for next generation satellite communications requires the study of techniques that are potentially able of a breakthrough. In this thesis we focus on two of the main issues hindering the performance of satellite communications.
In the first part of the thesis, we study the use of multi-user detection techniques in the return link of multibeam satellite systems operated with an aggressive frequency reuse strategy. We start by comparing their performance with respect to a traditional scenario, and study the possibility of splitting the processing between the gateway and the satellite to cope with practical constraints. We then study the fundamental performance limits of such a system when spatially correlated rain attenuation affects the users; analytical expressions are obtained for the high and low SNR regimes. Finally, we consider non perfect channel state information and obtain, through random matrix theory, an approximation of the residual error as a function of the system{\textquoteright}s parameters.
In the second part, we focus on link adaptation for mobile satellite communications. For the return link, we investigate the potential of open-loop channel state information, which is timely but scarcely accurate; the finding that this information is better than the traditional closed-loop one depending on the channel conditions motivated the study of an adaptive algorithm to dynamically balance both. Finally, in the forward link we considered the case where retransmissions are available, and designed the optimum modulation and coding scheme sequence for the different retransmissions of a packet in terms of throughput.
}, keywords = {satcom}, author = {Arnau, Jesus} } @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 {732, title = {SINR Optimization in Wideband Full-Duplex MIMO Relays under Limited Dynamic Range}, booktitle = {IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM)}, year = {2014}, address = {A Coru{\~n}a, Spain}, keywords = {adaptive signal processing, compass, full duplex}, doi = {10.1109/SAM.2014.6882369}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce and Taneli Riihonen and Stefan Werner and Risto Wichman} } @conference {693, title = {Adaptive Self-interference Cancellation in Wideband Full-Duplex Decode-and-Forward MIMO Relays}, booktitle = {IEEE 14th Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC)}, year = {2013}, month = {06/2013}, address = {Darmstadt, Germany}, keywords = {adaptive signal processing, dynacs, full duplex}, doi = {10.1109/SPAWC.2013.6612074}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce and Taneli Riihonen and Stefan Werner and Risto Wichman} } @conference {687, title = {Autocorrelation-based adaptation rule for feedback equalization in Wideband Full-Duplex Amplify-and-Forward MIMO relays}, booktitle = {Int. Conf. Acoust., Speech, Signal Process. (ICASSP)}, year = {2013}, abstract = {
Simultaneous reception and transmission in the same frequency, so-called full-duplex operation, causes an infinite feedback loop in an amplify-and-forward relay. The unwanted echoes may result in oscillation at the relay, making it unstable, and distorting the spectrum. This paper presents an adaptive MIMO filtering method for full-duplex amplify-and-forward relays that aims at solving the joint problem of self-interference mitigation and equalization of the source-relay channel. The scheme exploits knowledge of the autocorrelation of the transmitted signal as the only side information while allowing the relay, in the best case, to implement precoding as if there was not any self-interference or frequency selectivity in the source-relay channel. Finally, the proposed adaptation algorithm is investigated by determining its stationary points and by performing simulations in a MIMO-OFDM framework.
}, keywords = {adaptive signal processing, dynacs, full duplex}, doi = {10.1109/ICASSP.2013.6638606}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce and Taneli Riihonen and Stefan Werner and Risto Wichman} } @conference {686, title = {Cancelling self-interference in full-duplex relays without Angle-of-Arrival information}, booktitle = {Int. Conf. Acoust., Speech, Signal Process. (ICASSP)}, year = {2013}, abstract = {
With full-duplex relays, simultaneous reception and transmission in
the same frequency produce self-interference distortion and relay oscillation,
hampering reception at the receiver end unless properly
mitigated. Previous adaptive methods for self-interference cancellation
using multiple receive antennas require knowledge of the direction
of arrival of the source signal. We present a novel architecture
and adaptive scheme for Amplify-and-Forward relays allowing cancellation
without such knowledge. The temporal filter is updated
under the property restoral paradigm in order to match the power
spectrum of the retransmitted signal to that of the source signal.
}, keywords = {adaptive signal processing, dynacs, full duplex}, doi = {10.1109/ICASSP.2013.6638558}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce} } @conference {725, title = {Compressive Angular and Frequency Periodogram Reconstruction for Multiband Signals}, booktitle = {IEEE Int. Workshop Comput. Advances Multi-Sensor Adaptive Process (CAMSAP)}, year = {2013}, address = {San Martin}, keywords = {cognitive radio, dynacs}, doi = {10.1109/CAMSAP.2013.6714102}, author = {Ariananda, D. D. and Daniel Romero and Geert Leus} } @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 {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.} } @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} } @article {1041, title = {{Smart Grid Last-Mile Communications Model and Its Application to the Study of Leased Broadband Wired-Access}}, journal = {IEEE Transactions on Smart Grid}, volume = {4}, year = {2013}, month = {mar}, pages = {5{\textendash}12}, abstract = {

This paper addresses the modeling of specific Smart Grid (SG) communication requirements from a data networking research perspective, as a general approach to the study of different access technologies suitable for the last mile (LM). SGLM networks serve customers{\textquoteright} Energy Services Interfaces. From functional descriptions of SG, a traffic model is developed. It is then applied to the study of an access architecture based on leased lines from local broadband access providers. This permits consideration of the potential starvation of domestic traffic, which is avoided by applying well-known traffic management techniques. From previous results obtained for a purpose-built WiMAX SGLM network, the intuition that a leased broadband access yields lower latencies is verified. In general, the proposed traffic model simplifies the design of benchmarks for the comparison of candidate access technologies.

}, author = {Gomez-Cuba, Felipe and Asorey-Cacheda, Rafael and Gonz{\'a}lez-Casta{\~n}o, Francisco Javier} } @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 {652, title = {Adaptive self-interference suppression for full-duplex relays with multiple receive antennas}, booktitle = {IEEE 13th Int. Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2012)}, year = {2012}, month = {07/2012}, publisher = {IEEE}, organization = {IEEE}, address = {{\c C}esme, Turkey}, abstract = {
In full-duplex relays, simultaneous reception and transmission
in the same frequency results in self-interference which\ distorts the retransmitted signal and makes the relay prone\ to oscillation. We present an adaptive feedback canceller for\ multiple-input single-output (MISO) relays, efficiently combining\ spatial and temporal processing. The receive array is\ adaptively steered towards the minimum variance distortionless\ response (MVDR), whereas the temporal filter update is\ based on a novel low-complexity spectrum shaping scheme\ which avoids introducing additional delay in the relay station.
}, keywords = {adaptive signal processing, dynacs, full duplex}, doi = {10.1109/SPAWC.2012.6292948}, author = {Emilio Antonio-Rodr{\'\i}guez and R. L{\'o}pez-Valcarce} } @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 {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 {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 {troncosoCLOSER11, title = {Encrypted Domain Processing for Cloud Privacy: Concept and Practical Experience}, booktitle = {International Conference on Cloud Computing and Services Science (CLOSER)}, year = {2011}, month = {May}, address = {Noordwijkerhout, The Netherlands}, keywords = {cloud, privacy, security, watermarking}, author = {Daniel A. Rodr{\'\i}guez-Silva and F. Javier Gonz{\'a}lez-Casta{\~n}o and Lilian Adkinson-Orellana and Alexandre Fern{\'a}ndez-Cordeiro and Juan Ram{\'o}n Troncoso-Pastoriza and Daniel Gonz{\'a}lez-Mart{\'\i}nez} } @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 {pcomesan-iwdw11, title = {Witsenhausen{\textquoteright}s counterexample and its links with multimedia security problems}, booktitle = {International Workshop on Digital Watermarking (IWDW)}, year = {2011}, month = {October}, address = {Atlantic City, USA}, keywords = {control, Multimedia security, Witsenhausen{\textquoteright}s counterexample}, author = {Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez and Chaouki T. Abdallah} } @article {Alvarez-Diaz-SigPro-10, title = {Blind l_1-Norm-Based Phase Estimation for Cross-QAM Robust to Finite Precision Effects}, journal = {Signal Processing}, volume = {90}, year = {2010}, note = {Accepted for publication}, month = {11/2010}, pages = {2934-2948}, keywords = {blind phase estimation, carrier offset, cross-QAM constellations, fixed point implementation}, author = {Marcos {\'A}lvarez-D{\'\i}az and R. L{\'o}pez-Valcarce and Iago G{\'o}mez-Alonso} } @mastersthesis {799, title = {Design of Nonlinear Precoding and Estimation Schemes for Advanced Communication Systems}, volume = {Ph.D.}, year = {2010}, month = {04/2010}, type = {Ph.D. thesis}, keywords = {adaptive signal processing, satcom}, author = {Marcos {\'A}lvarez-D{\'\i}az} } @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} } @conference {dgonzalez-icip09, title = {Modeling Magnitudes of Gabor Coefficients: The \β-Rayleigh Distribution}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2009}, month = {November}, publisher = {IEEE}, organization = {IEEE}, address = {Cairo, Egypt}, keywords = {Gabor, generalized Gaussian, Rayleigh, watermarking}, author = {Daniel Gonz{\'a}lez-Jim{\'e}nez and Enrique Argones-R{\'u}a and Fernando P{\'e}rez-Gonz{\'a}lez and Jos{\'e} Luis Alba-Castro} } @conference {ValcarceVazquezAlvarez2009, title = {Multiantenna detection of multicarrier primary signals exploiting spectral a priori information}, booktitle = {International Conference on Cognitive Radio Oriented Wireless Networks and Communications (Crowncom)}, year = {2009}, month = {June 22-24}, address = {Hannover, Germany}, author = {R. L{\'o}pez-Valcarce and Gonzalo V{\'a}zquez-Vilar and Marcos {\'A}lvarez-D{\'\i}az} } @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} } @conference {icip07benford, title = {Benford{\textquoteright}s Law in Image Processing}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2007}, month = {September}, address = {San Antonio, TX, USA}, keywords = {benford, benford{\textquoteright}s-law}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and Gregory L. Heileman and Chaouki T. Abdallah} } @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 {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} } @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 {Chap8_Book_Corazza07, title = {Digital Satellite Communications}, year = {2007}, month = {April}, pages = {-}, publisher = {Springer}, organization = {Springer}, chapter = {Distortion Countermeasures}, address = {New York}, author = {A. A. Rontogiannis and Marcos {\'A}lvarez-D{\'\i}az and M. Casadei and V. Dalakas and A. Duverdier and F. J. Gonz{\'a}lez-Serrano and M. Iubatti and T. Javornik and L. Lapierre and Neri, Massimo and P. Salmi} } @conference {ecc07benford, title = {A Generalization of Benford{\textquoteright}s Law and Its Application to Images}, booktitle = {European Control Conference (ECC)}, year = {2007}, month = {July}, address = {Kos, Greece}, keywords = {benford, benford{\textquoteright}s-law}, author = {Fernando P{\'e}rez-Gonz{\'a}lez and Gregory L. Heileman and Chaouki T. Abdallah} } @conference {icip07dani, title = {Modeling Gabor coefficients via Generalized Gaussian Distributions for face recognition}, booktitle = {IEEE International Conference on Image Processing (ICIP)}, year = {2007}, month = {September}, pages = {1261-1264}, address = {San Antonio, TX, USA}, keywords = {biometrics, face-recognition}, author = {Daniel Gonz{\'a}lez-Jim{\'e}nez and Fernando P{\'e}rez-Gonz{\'a}lez and Pedro Comesa{\~n}a and Luis P{\'e}rez-Freire and Jos{\'e} Luis Alba-Castro} } @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 {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 {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 {ICSSC{\textquoteright}05, title = {Aeronautical Channel Model for Broadband L-Band Satellite Communication}, booktitle = {AIAA International Communications Satellite Systems Conference (ICSSC)}, year = {2005}, month = {September 25-28}, address = {Rome, Italy}, keywords = {Digital Communications, L-Band, satellite communications}, author = {Madhavendra Richharia and Naveen Kaluvala and Panos Fines and Marcos {\'A}lvarez-D{\'\i}az and Axel Jahn} } @conference {uvigo:diamond, title = {Diamond contour-based phase recovery for (cross-)QAM constellations}, booktitle = {IEEE Workshop on Statistical Signal Processing (SSP)}, year = {2005}, address = {Bordeaux, France}, keywords = {adaptive signal processing, synchronization}, doi = {10.1109/SSP.2005.1628678}, author = {Marcos {\'A}lvarez-D{\'\i}az and R. L{\'o}pez-Valcarce} } @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 {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 {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 {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 {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} } @article {uvigo:analysispilot, title = {Analysis of Pilot-Based Synchronization Algorithms for Watermarking of Still Images}, journal = {Signal Processing: Image Communication}, volume = {17}, number = {8}, year = {2002}, month = {September}, pages = {661-633}, keywords = {data-hiding, watermarking}, author = {Manuel Alvarez-Rodr{\'\i}guez and Fernando P{\'e}rez-Gonz{\'a}lez} } @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 {uvigo:dctdomain, title = {DCT-Domain Watermarking Techniques for Still Images: Detector Performance Analysis and a New Structure}, journal = {IEEE Transactions on Image Processing}, volume = {9}, number = {1}, year = {2000}, note = {Special Issue on Image and Video Processing for Digital Libraries}, month = {January}, pages = {55{\textendash}68}, keywords = {data-hiding, watermarking}, author = {Juan R. Hern{\'a}ndez and Mart{\'\i}n Amado and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {uvigo:noveldetector, title = {Novel Detector Structures for Watermark Extraction in the DCT Domain}, booktitle = {Workshop on Nonlinear Signal and Image Processing}, year = {1999}, month = {June}, publisher = {IEEE-EURASIP}, organization = {IEEE-EURASIP}, address = {Antalya, Turkey}, keywords = {data-hiding, watermarking}, author = {Juan R. Hern{\'a}ndez and Mart{\'\i}n Amado and Fernando P{\'e}rez-Gonz{\'a}lez} } @conference {uvigo:improvingdctdomain, title = {Improving DCT-Domain Watermark Extraction Using Generalized Gaussian Models}, booktitle = {COST $\#$254 Int. Workshop on Intelligent Communications and Multimedia Terminals}, year = {1998}, month = {November}, pages = {23{\textendash}26}, address = {Ljubljana, Slovenia}, keywords = {data-hiding, watermarking}, author = {Juan R. Hern{\'a}ndez and Fernando P{\'e}rez-Gonz{\'a}lez and Mart{\'\i}n Amado} }