AI 中文总结
针对低轨卫星间同信道干扰问题，提出基于功率控制与AI辅助的干扰抑制系统，利用Starlink和EutelsatOneweb波形验证，可显著提升频谱效率。
AI 中文摘要
低地球轨道（LEO）卫星近年来因其在沙漠、海洋和农村地区提供高数据速率服务的潜力而受到广泛关注。目前，此类系统在下行链路中运行于Ku频段。然而，不同运营商之间的LEO卫星会产生频繁的在轨事件（ILE），导致其波形之间产生同信道干扰。随着更多星座的发射，这种情况将加剧。为应对这一挑战，我们提出了一种基于功率控制的新型干扰抑制系统。具体而言，来自一个运营商的卫星将调整其发射功率，以在同频波束之间形成足够的接收功率差，从而使用户端能够采用连续干扰消除（SIC）或AI辅助算法进行干扰抑制，其中AI需要较小的功率差。我们使用Starlink和EutelsatOneweb的波形来评估所设计的系统。结果表明，所设计的系统能够显著抑制干扰并提高整体频谱效率。
英文摘要
Low-earth orbits (LEO) satellites have recently gained wide attention for their potential to provide high-data-rate services in desert, sea, and rural areas. Currently such systems operate in the Ku band on the down-link. However, inter-operator LEO satellites produce frequent In-Line-Events (ILE) creating co-channel interference between their waveforms. This situation will be exacerbated with the launch of more constellations being launched. To address this challenge, we propose a novel interference mitigation system based on power control. Specifically, satellites from one operator will adjust its transmit power to create a sufficient received-power gap for co-frequency beams, enabling successive interference cancellation (SIC) or AI-assisted algorithms on the user-side for interference mitigation, where AI requires a smaller power gap. We use the waveforms from Starlink and EutelsatOneweb to evaluate the designed system. Results show the designed system can significantly mitigate interference and increase the overall spectrum efficiency.
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