2026-04-13T01:19:43Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1065692026-01-18T08:44:34Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Vazquez, Miguel Angel author Pérez Neira, Ana Isabel author Christopoulos, Dimitrios author Chatzinotas, Symeon author Ottersten, Björn author Arapoglou, Pantelis-Daniel author Ginesi, Alberto author Tarocco, Giorgio author 2016-12-01 Whenever multibeam satellite systems target very aggressive frequency reuse in their coverage area, inter-beam interference becomes the major obstacle for increasing the overall system throughput. As a matter of fact, users located at the beam edges suffer from very large interference for even a moderately aggressive planning of reuse-2. Although solutions for inter-beam interference management have been investigated at the satellite terminal, it turns out that the performance improvement does not justify the increased terminal complexity and cost. In this article, we pay attention to interference mitigation techniques that take place at the transmitter (i.e., the gateway). Based on this understanding, we provide our vision on advanced precoding techniques and user clustering methods for multibeam broadband fixed satellite communications. We also discuss practical challenges to deploy precoding schemes and the support introduced in the recently published DVB-S2X standard. Future challenges for novel configurations employing precoding are also provided. Peer Reviewed Postprint (author's final draft) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors Artificial satellites in telecommunication Wireless communication systems Telecommunication network planning Broadband networks Frequency allocation Interference suppression Pattern clustering Precoding Radio transmitters Radiofrequency interference Satellite communication Satèl·lits artificials en telecomunicació Comunicació sense fil, Sistemes de Precoding in multibeam satellite communications: present and future challenges