多波束卫星系统中的多网关协作
Multi-Gateway Cooperation in Multibeam Satellite Systems
摘要：
最近已经部署了具有数百个波束的多波束系统，以便通过采用分数频率复用来提供更高的容量。此外，在文献中，采用全频率重用和多波束上的预编码已经显示出巨大的吞吐量潜力。然而，基于当前的频率分配，从单个网关馈送所有这些数据是不可行的。在这种情况下，我们调查了一系列涉及光束集群的情况下，每个集群由一个单一的网关管理。更具体地，考虑以下情况来处理集群间干扰：a）常规频率着色，b）集群内的联合处理，c）集群之间的部分CSI共享，d）集群之间的部分CSI和数据共享。CSI共享相对于b）没有提供相当大的性能增益，但是与数据共享相结合提供了比a）大约40%的改进和比b）大约15%的改进。
英文摘要：
Multibeam systems with hundreds of beams have been recently deployed in order to provide higher capacities by employing fractional frequency reuse. Furthermore, employing full frequency reuse and precoding over multiple beams has shown great throughput potential in literature. However, feeding all this data from a single gateway is not feasible based on the current frequency allocations. In this context, we investigate a range of scenarios involving beam clusters where each cluster is managed by a single gateway. More specifically, the following cases are considered for handling intercluster interference: a) conventional frequency colouring, b) joint processing within cluster, c) partial CSI sharing among clusters, d) partial CSI and data sharing among clusters. CSI sharing does not provide considerable performance gains with respect to b) but combined with data sharing offers roughly a 40% improvement over a) and a 15% over b).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
