TY - CONF T1 - Blind Satellite Inter-Gateway Interference Mitigation T2 - IEEE International Conference on Communications (ICC) Y1 - 2015 A1 - J. Arnau A1 - C. Mosquera KW - compass KW - satcom JF - IEEE International Conference on Communications (ICC) ER - TY - CHAP T1 - Multibeam Joint Detection T2 - Cooperative and Cognitive Satellite Systems Y1 - 2015 A1 - J. Arnau A1 - R. de Lamare A1 - C. Mosquera KW - satcom JF - Cooperative and Cognitive Satellite Systems PB - Elsevier ER - TY - CONF T1 - Balancing Closed and Open Loop CSI in Mobile Satellite Link Adaptation T2 - Proc. ASMS & SPSC Y1 - 2014 A1 - Alberto Rico-Alvariño A1 - Arnau, Jesus A1 - Carlos Mosquera KW - dynacs KW - satcom JF - Proc. ASMS & SPSC CY - Livorno, Italy U1 -
Best paper award
ER - TY - CONF T1 - Dissection of multibeam satellite communications with a large-scale antenna system toolbox T2 - European Wireless 2014 (EW2014) Y1 - 2014 A1 - Arnau, Jesus A1 - Carlos Mosquera KW - dynacs KW - large-scale analysis KW - Massive MIMO KW - multibeam satellites KW - Multiuser detection KW - satcom AB -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.
JF - European Wireless 2014 (EW2014) CY - Barcelona, Spain ER - TY - THES T1 - On-Ground Processing for Spectral Efficiency Improvement in Next Generation Satellite Communications Y1 - 2014 A1 - Arnau, Jesus KW - satcom AB -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 – like the inter-user distance, the satellite beam radius, or the rain intensity– 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.
ER - TY - Generic T1 - Cross Layer Link Adaptation in Time Varying Mobile Satellite Channels with Statistical and Outdated CSIT T2 - Asilomar Conference on Signals Systems and Computers Y1 - 2013 A1 - Alberto Rico-Alvariño A1 - J. Arnau A1 - Carlos Mosquera KW - dynacs KW - satcom JF - Asilomar Conference on Signals Systems and Computers ER - TY - JOUR T1 - MMSE Performance Analysis of Generalized Multibeam Satellite Channels JF - Communications Letters, IEEE Y1 - 2013 A1 - Christopoulos, D. A1 - J. Arnau A1 - Chatzinotas, S. A1 - C. Mosquera A1 - Ottersten, B. KW - dynacs KW - linear minimum mean square error receivers KW - multibeam satellites KW - Multiuser detection KW - return link KW - satcom ER - TY - CONF T1 - Open Loop Adaptive Coding and Modulation for Mobile Satellite Return Links T2 - 31st AIAA International Communications Satellite Systems Conference Y1 - 2013 A1 - Arnau, Jesus A1 - Carlos Mosquera KW - dynacs KW - link adaptation KW - satcom JF - 31st AIAA International Communications Satellite Systems Conference PB - American Institute of Aeronautics and Astronautics CY - Florence, Italy U1 -http://dx.doi.org/10.2514/6.2013-5704
ER - TY - CONF T1 - Statistical Cross Layer Adaptation in Fast Fading Mobile Satellite Channels T2 - Globecom 2013 - Symposium on Selected Areas in Communications (GC13 SAC) Y1 - 2013 A1 - Alberto Rico-Alvariño A1 - J. Arnau A1 - C. Mosquera KW - dynacs KW - fast fading channels KW - link adaptation KW - mobile satellite KW - satcom AB -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.
JF - Globecom 2013 - Symposium on Selected Areas in Communications (GC13 SAC) CY - Atlanta, USA ER - TY - CONF T1 - Adaptive Transmission Techniques for Mobile Satellite Links T2 - 30th AIAA International Communications Satellite Systems Conference (ICSSC) Y1 - 2012 A1 - Arnau, Jesus A1 - Alberto Rico-Alvariño A1 - C. Mosquera KW - dynacs KW - satcom JF - 30th AIAA International Communications Satellite Systems Conference (ICSSC) CY - Ottawa, Canada U1 -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.
JF - 2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC) (ASMS/SPSC 2012) CY - Baiona, Spain ER - TY - JOUR T1 - Performance study of multiuser interference mitigation schemes for hybrid broadband multibeam satellite architectures JF - EURASIP Journal on Wireless Communications and Networking Y1 - 2012 A1 - Arnau, Jesus A1 - Bertrand Devillers A1 - C. Mosquera A1 - Ana Pérez-Neira VL - 2012 UR - http://jwcn.eurasipjournals.com/content/2012/1/132 ER - TY - CONF T1 - Hybrid Space-Ground Processing for High-Capacity Multi-beam Satellite Systems T2 - IEEE GLOBECOM Y1 - 2011 A1 - Arnau, Jesus A1 - Michael Bergmann A1 - Enzo Alberto Candreva A1 - Giovanni Emanuele Corazza A1 - Riccardo {De Gaudenzi} A1 - Bertrand Devillers A1 - Wilfried Gappmair A1 - Francesco Lombardo A1 - C. Mosquera A1 - Ana Pérez-Neira A1 - Ilaria Thibault A1 - Alessandro Vanelli-Coralli JF - IEEE GLOBECOM CY - Houston, Texas, USA N1 - Selected Areas in Communications Symposium - Satellite & Space Communications Track (GC'11 - SAC - SSC) ER -