Performance of the Multibeam Satellite Return Link With Correlated Rain Attenuation
Performance of the Multibeam Satellite Return Link With Correlated Rain Attenuation
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DOI：
10.1109/twc.2014.2329682
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发表时间：
2014-11-01
影响因子：
10.4
通讯作者：
Ottersten, Bjoern
中科院分区：
文献类型：
--
作者：
Arnau, Jesus;Christopoulos, Dimitrios;Ottersten, Bjoern
雨衰是 K 频段及以上频段运行的卫星系统的主要损害之一。在本文中，我们研究了空间相关雨衰对多波束卫星返回链路性能的影响。为了进行全面评估，还提出了生成波束的天线方向图的分析模型。我们关注链路的中断容量，并获得高和低信噪比下的分析近似值。得出的近似值可以深入了解关键系统参数（例如用户间距离、卫星波束半径或降雨强度）的影响，并且仿真结果表明它与蒙特卡罗结果紧密吻合。此外，派生表达式可以轻松地针对单用户情况进行具体化，从而提供一些新颖的见解。
Rain attenuation is among the major impairments for satellite systems operating in the K-band and above. In this paper, we investigate the impact of spatially correlated rain attenuation on the performance of a multibeam satellite return link. For a comprehensive assessment, an analytical model for the antenna pattern that generates the beams is also proposed. We focus on the outage capacity of the link and obtain analytical approximations at high and low signal-to-noise ratio. The derived approximations provide insights into the effect of key system parameters such as the interuser distance, the satellite beam radius, or the rain intensity, and simulation results show that it fits tightly with the Monte Carlo results. Additionally, the derived expressions can be easily particularized for the single-user case, providing some novel insights.