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Clustering strategies for multicast precoding in multibeam satellite systems
International Journal of Satellite Communications and Networking ( IF 0.9 ) Pub Date : 2019-07-01 , DOI: 10.1002/sat.1312
Alessandro Guidotti 1 , Alessandro Vanelli‐Coralli 1
Affiliation  

Next generation multibeam SatCom architectures will heavily exploit full frequency reuse schemes along with interference management techniques, eg, precoding or multiuser detection, to drastically increase the system throughput. In this framework, we address the problem of the user selection for multicast precoding by formulating it as a clustering problem. By introducing a novel mathematical framework, we design fixed/variable size clustering algorithms that group users into simultaneously precoded and served clusters while maximising the system throughput. Numerical simulations are used to validate the proposed algorithms and to identify the main system‐level trade‐offs.

中文翻译:

多波束卫星系统中多播预编码的聚类策略

下一代多波束SatCom架构将大量利用全频率复用方案以及干扰管理技术(例如预编码或多用户检测),以大大提高系统吞吐量。在此框架中,我们通过将其表示为聚类问题来解决用户选择多播预编码的问题。通过引入新颖的数学框架,我们设计了固定/可变大小的聚类算法,该算法将用户分组到同时预编码和服务的集群中,同时最大程度地提高系统吞吐量。数值模拟用于验证所提出的算法并确定主要的系统级权衡。
更新日期:2019-07-01
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