[en] To improve the efficient utilization of spectral and hardware resources, joint communications and sensing (JCS) has drawn extensive attention. Most existing JCS works focus on terrestrial networks and can not be straightforwardly applied in satellite systems due to the significantly different electromagnetic wave propagation properties. In this work, we investigate the application of JCS in massive multiple-input multiple-output (MIMO) low earth orbit (LEO) satellite systems. We first charac-terize the statistical wave propagation properties by considering beam squint effects. Based on this analysis, we propose a beam squint-aware JCS technique for hybrid analog/digital massive MIMO LEO satellite systems exploiting statistical channel s-tate information. Simulation results demonstrate that both the wireless communications and target sensing can be operated simultaneously with satisfactory performance, and the beam squint effects can be efficiently mitigated with the proposed method in typical LEO satellite systems.
Disciplines :
Sciences informatiques
Auteur, co-auteur :
Qiang, Xiaoyu
You, Li
TSINOS, Christos ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Wang, Wenjin
Gao, Xiqi
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Joint Communications and Sensing for Hybrid Massive MIMO LEO Satellite Systems With Beam Squint
Date de publication/diffusion :
2022
Nom de la manifestation :
2022 IEEE International Conference on Communications Workshops (ICC Workshops)
Lieu de la manifestation :
Seoul, Corée du Sud
Date de la manifestation :
16-05-2022 to 20-05-2022
Manifestation à portée :
International
Titre de l'ouvrage principal :
2022 IEEE International Conference on Communications Workshops (ICC Workshops)
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