%0 Journal Article %J International Journal of Satellite Communications and Networking %D 2023 %T Contribution of non-orthogonal multiple access signalling to practical multibeam satellite deployments %A Tomás Ramírez %A Carlos Mosquera %B International Journal of Satellite Communications and Networking %G eng %R https://doi.org/10.1002/sat.1492 %0 Conference Paper %B 40th International Communications Satellite Systems Conference (ICSSC) %D 2023 %T Overview of Use Cases in Single Channel Full Duplex Techniques for Satellite Communication %A Víctor Monzón Baeza %A Carlos Mosquera %A Roberto López-Valcarce %A JL González-Ríos %A JA Vasquez-Peralvo %A Tomás Ramírez %A P Losada %A JC Merlano %A S Chatzinotas %A Steven Kisseleff %B 40th International Communications Satellite Systems Conference (ICSSC) %G eng %0 Conference Paper %B 11th Advanced Satellite Multimedia Conference and 17th Signal Processing for Space Communications Workshop %D 2022 %T Contribution of NOMA Signalling to Practical Multibeam Satellite Deployments %A Tomás Ramírez %A Carlos Mosquera %B 11th Advanced Satellite Multimedia Conference and 17th Signal Processing for Space Communications Workshop %G eng %0 Journal Article %J IEEE Transactions on Broadcasting %D 2022 %T Flexible User Mapping for Radio Resource Assignment in Advanced Satellite Payloads %A Tomás Ramírez %A Carlos Mosquera %A Nader Alagha %B IEEE Transactions on Broadcasting %G eng %0 Conference Paper %B 9th European Signal Processing Conference, EUSIPCO 2021 %D 2021 %T Flexible Beam-User Mapping for Multibeam Satellites %A Tomás Ramírez %A Carlos Mosquera %A Nader Alagha %B 9th European Signal Processing Conference, EUSIPCO 2021 %C Dublin, Irlanda %G eng %0 Conference Paper %B 38th International Communications Satellite Systems Conference (ICSSC), %D 2021 %T Non-Orthogonal Transmission Under Flexible Illumination Patterns For Advanced Satellite Payloads %A Tomás Ramírez %A Carlos Mosquera %A Nader Alagha %B 38th International Communications Satellite Systems Conference (ICSSC), %C Washington DC, USA %G eng %0 Journal Article %J IEEE Transactions on Communications %D 2021 %T Space-Time Rate Splitting for the MISO BC with Magnitude CSIT %A Carlos Mosquera %A Nele Noels %A Tomás Ramírez %A Màrius Caus %A Adriano Pastore %B IEEE Transactions on Communications %G eng %0 Conference Paper %B IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 25-28 May 2020, virtual event. %D 2020 %T Non-coherent rate-splitting for multibeam satellite forward link: practical coding and decoding algorithms %A Nele Noels %A Marc Moeneclaey %A Tomás Ramírez %A Carlos Mosquera %A Màrius Caus %A Adriano Pastore %B IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 25-28 May 2020, virtual event. %G eng %0 Conference Paper %B XXXV Simposio Nacional de la Unión Científica Internacional de Radio, URSI 2020 %D 2020 %T On the Performance of Advanced Reflectarray Configurations for Multibeam Satellite Communications %A Tomás Ramírez %A Daniel Martínez de Rioja %A Eduardo Martínez de Rioja %A Carlos Mosquera %A José A. Encinar %B XXXV Simposio Nacional de la Unión Científica Internacional de Radio, URSI 2020 %G eng %0 Conference Paper %B 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP) %D 2020 %T Resource Management in the multibeam NOMA-based satellite downlink %A Tomás Ramírez %A Carlos Mosquera %B 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP) %G eng %0 Conference Paper %B 10th Advanced Satellite Multimedia Systems Conference (ASMS) and 16th Signal Processing for Space Communications Workshop (SPSC) %D 2020 %T Study on the Application of NOMA Techniques for Heterogeneous Satellite Terminals %A Tomás Ramírez %A Carlos Mosquera %A Nele Noels %A Màrius Caus %A Joan Bas %A Luis Blanco %A Nader Alagha %B 10th Advanced Satellite Multimedia Systems Conference (ASMS) and 16th Signal Processing for Space Communications Workshop (SPSC) %G eng %0 Journal Article %J EURASIP Journal on Wireless Communications and Networking %D 2020 %T Two-Level Frame Precoding with non-Cooperative Gateways %A Tomás Ramírez %A Carlos Mosquera %A R. López-Valcarce %K myrada %K satcom %K winter %B EURASIP Journal on Wireless Communications and Networking %G eng %U https://rdcu.be/b5KB3 %R https://doi.org/10.1186/s13638-020-01757-7 %0 Conference Paper %B 36th International Communications Satellite Systems Conference (ICSSC) %D 2018 %T Adjacent Beams Resource Sharing to Serve Hot Spots : A Rate Splitting Approach %A Tomás Ramírez %A Carlos Mosquera %A Màrius Caus %A Adriano Pastore %A Nader Alagha %A Nele Noels %X
We consider the forward link of a multibeam satellite system with high spectral reuse and the novel low-complexity transmission and detection strategies from ["“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.
%B 6th IEEE Global Conference on Signal and Information Processing %G eng %0 Conference Paper %B 22nd International Workshop on Smart Antennas (WSA) %D 2018 %T Two-Level Precoding for High Throughput Satellites with non-Cooperative Gateways %A Tomás Ramírez %A Carlos Mosquera %A Roberto López-Valcarce %B 22nd International Workshop on Smart Antennas (WSA) %G eng %0 Conference Paper %B 35th AIAA International Communications Satellite Systems Conference %D 2017 %T Distributed Precoding Systems in Multi-Gateway Multibeam Satellites %A Carlos Mosquera %A R. López-Valcarce %A Tomás Ramírez %K precoding %K satcom %B 35th AIAA International Communications Satellite Systems Conference %C Trieste,Italy %8 10/2017 %G eng %0 Conference Paper %B 8th Advanced Satellite Multimedia Systems Conference and 14th Signal Processing for Space Communications Workshop %D 2016 %T Full-duplex operation in two-way broadcast service for maritime applications %A Tomás Ramírez %A Carlos Mosquera %K compass %K full duplex %K satcom %B 8th Advanced Satellite Multimedia Systems Conference and 14th Signal Processing for Space Communications Workshop %8 09/2016 %G eng