Terrestrial Relay‐Aided Cooperative High Throughput Satellite Systems,International Journal of Satellite Communications and Networking

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Terrestrial Relay‐Aided Cooperative High Throughput Satellite Systems
International Journal of Satellite Communications and Networking ( IF 0.9 ) Pub Date : 2020-02-10 , DOI: 10.1002/sat.1332
Rajendra Prasad Sirigina ₁ , Madhukumar AS ₁ , Mark Bowyer ₂

Affiliation

Full frequency reuse based dual satellite system (DSS) is investigated in this work. In the case of DSS, user terminals receive inter spot beam and intra spot beam interfering signals due to the simultaneous transmission of data from both satellites. Cooperative precoding algorithm is proposed to mitigate these effects. The achievable data rates with zero‐forcing (ZF) and regularized ZF precoding algorithms are characterized. If the user terminals served by both satellites are colocated, then the proposed cooperative precoding algorithm fails because of correlated channels. To this end, relay‐aided DSS (RA‐DSS) is proposed. The achievable data rates of both full‐duplex and half‐duplex RA‐DSSs are characterized. Through simulations, it is shown that the proposed full‐duplex RA‐DSS achieves better data rate than the DSS, single satellite system, and orthogonal transmission even if the users are closely placed.

中文翻译：

地面中继辅助合作式高吞吐量卫星系统

在这项工作中，研究了基于全频率复用的双卫星系统（DSS）。在DSS的情况下，由于来自两个卫星的数据的同时传输，用户终端接收点间波束和点内波束干扰信号。提出了协作预编码算法来减轻这些影响。表征了采用零强制（ZF）和规则化ZF预编码算法可实现的数据速率。如果两个卫星服务的用户终端位于同一位置，则所提出的协作式预编码算法由于信道相关而失败。为此，提出了中继辅助DSS（RA‐DSS）。表征了全双工和半双工RA-DSS均可达到的数据速率。通过仿真表明，与单卫星系统DSS相比，拟议的全双工RA-DSS可以实现更好的数据速率，

更新日期：2020-02-10

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