TY - JOUR T1 - Flexible User Mapping for Radio Resource Assignment in Advanced Satellite Payloads JF - IEEE Transactions on Broadcasting Y1 - 2022 A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Nader Alagha ER - TY - CONF T1 - Flexible Beam-User Mapping for Multibeam Satellites T2 - 9th European Signal Processing Conference, EUSIPCO 2021 Y1 - 2021 A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Nader Alagha JF - 9th European Signal Processing Conference, EUSIPCO 2021 CY - Dublin, Irlanda ER - TY - CONF T1 - Non-Orthogonal Transmission Under Flexible Illumination Patterns For Advanced Satellite Payloads T2 - 38th International Communications Satellite Systems Conference (ICSSC), Y1 - 2021 A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Nader Alagha JF - 38th International Communications Satellite Systems Conference (ICSSC), CY - Washington DC, USA ER - TY - CONF T1 - Study on the Application of NOMA Techniques for Heterogeneous Satellite Terminals T2 - 10th Advanced Satellite Multimedia Systems Conference (ASMS) and 16th Signal Processing for Space Communications Workshop (SPSC) Y1 - 2020 A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Nele Noels A1 - Màrius Caus A1 - Joan Bas A1 - Luis Blanco A1 - Nader Alagha JF - 10th Advanced Satellite Multimedia Systems Conference (ASMS) and 16th Signal Processing for Space Communications Workshop (SPSC) ER - TY - CONF T1 - Adjacent Beams Resource Sharing to Serve Hot Spots : A Rate Splitting Approach T2 - 36th International Communications Satellite Systems Conference (ICSSC) Y1 - 2018 A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Màrius Caus A1 - Adriano Pastore A1 - Nader Alagha A1 - Nele Noels AB -
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.
JF - 36th International Communications Satellite Systems Conference (ICSSC) CY - Niagara Falls, Canada ER - TY - CONF T1 - Exploratory Analysis of Superposition Coding and Rate Splitting for Multibeam Satellite Systems T2 - 15th International Symposium on Wireless Communication Systems (ISWCS) Y1 - 2018 A1 - Màrius Caus A1 - Adriano Pastore A1 - Mònica Navarro A1 - Tomás Ramírez A1 - Carlos Mosquera A1 - Nele Noels A1 - Nader Alagha A1 - Ana I. Perez-Neira JF - 15th International Symposium on Wireless Communication Systems (ISWCS) CY - Lisbon, Portugal ER - TY - CONF T1 - Pushing for higher rates and efficiency in Satcom: the different perspectives within SatNExIV T2 - Twelfth International Symposium on Wireless Communication Systems (ISWCS) Y1 - 2015 A1 - Miguel Ángel Vázquez A1 - Ana Pérez Neira A1 - Carlos Mosquera A1 - Bhavani Shankar A1 - Pol Henarejos A1 - Athanasios Panagopoulos A1 - Giovanni Giambene A1 - Vasilios Siris A1 - George Polyzos A1 - Nader Alagha KW - satcom JF - Twelfth International Symposium on Wireless Communication Systems (ISWCS) CY - Brussels ER -