Beamforming; Mobile Satellite Systems; Multibeam Satellite Systems; On Board Processing; Precoding; Multiple Gateway System
Résumé :
[en] This paper present On-Board Precoding (OBP)
for a multiple gateway multibeam satellite system where full
frequency reuse pattern is employed at both user and feeder
links. By reducing the Channel State Information (CSI) roundtrip delay to half, OBP offers significant benefits in the emerging multiple gateway scenario in terms of lower gateways coordination.
However, two critical issues need to be addressed: (a)
interference in both user and feeder links is the bottleneck of the whole system and employing interference mitigation techniques is essential, (b) clear push towards non-adaptive (fixed) payload implementation, leading to low computationally complex satellite architectures. In order to fulfill requirements (a) and (b), this paper studies the impact of employing a fixed OBP technique at the payload which is sufficiently robust to the variations in both user and feeder link channels. In addition to (a) and (b), the provided simulation results depict the performance gain obtained by our proposed OBP with respect to the conventional interference mitigation techniques in multiple gateway multibeam systems.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
JOROUGHI, Vahid ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
SHANKAR, Bhavani ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
MALEKI, Sina ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Grotz, Joel; SES S.A
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Co-auteurs externes :
no
Langue du document :
Anglais
Titre :
On-Board Precoding in a Multiple Gateway Multibeam Satellite System
Date de publication/diffusion :
2018
Nom de la manifestation :
IEEE VEHICULAR TECHNOLOGY CONFERENCE
Date de la manifestation :
29-08-2018
Titre de l'ouvrage principal :
Proceedings of IEEE VTC Fall 2018
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
Projet FnR :
FNR11504382 - On-board Processing Techniques For High Throughput Satellites, 2016 (01/05/2017-31/07/2020) - Bjorn Ottersten
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