Multigateway Robust Precoding for Multibeam Satellite Systems with Feeder Link Interference

In multibeam satellite systems, multigateway architectures have been proposed to utilize the feeder link bandwidth effectively. However, multigateway configurations suffer from intra-beam cluster interference and inter-beam cluster interference, which leads to capacity performance degradation. Coope...

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Vydáno v:IEEE Vehicular Technology Conference s. 1 - 6
Hlavní autoři: Su, Qing, Feng, Xuan, Chen, Rui
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 24.06.2024
Témata:
Channel estimation
Collaboration
Degradation
Multibeam satellite communication systems
multigateway architecture
Precoding
robust design
Satellite broadcasting
Simulation
Vehicular and wireless technologies
weighted MMSE
ISSN:2577-2465
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Shrnutí:In multibeam satellite systems, multigateway architectures have been proposed to utilize the feeder link bandwidth effectively. However, multigateway configurations suffer from intra-beam cluster interference and inter-beam cluster interference, which leads to capacity performance degradation. Cooperation between gateways has become an effective scheme to eliminate interference among adjacent clusters. To maximize the sum rate in multigateway multibeam satellite communication systems while under the satellite transmit power constraints, we propose a robust weighted minimum-mean-square-error (WMMSE) precoding approach through multigateway collaboration with considering practical feeder link interference. Given the estimated channel statistical error, the derived solution converges to a stationary point of the sum-rate maximization problem. Numerical simulations validate the performance of the proposed robust WMMSE precoder, and show the impact of the feeder link interference under multigateway architecture.
ISSN:2577-2465
DOI:10.1109/VTC2024-Spring62846.2024.10683511