低轨星座的跳波束资源调度策略

跳波束技术作为一种高通量卫星资源分配方法，能够根据地面业务需求灵活配置星上资源，提高星上资源利用率。本文将跳波束技术应用到低轨星座场景中，针对用户业务先验未知和先验已知两种情况，考虑波束间的共信道干扰，基于迭代算法和凸优化制定了适用于低轨星座的两种跳波束资源调度策略。与传统策略对比，能达到更高的系统吞吐量，同时具有较好的时延性能，且适应用户业务的不均分布。

Beam-hopping resource scheduling strategy of LEO constellation

As a high-throughput satellite resource allocation method, beam-hopping technology can flexibly configure on-board resources according to ground service requirements, thereby improving onboard resource utilization. In this paper, the beam-hopping technology is applied to the Low Earth Orbit(LEO) constellation scenario. In view of the two situations where the user''s traffic is unknown and known a priori, the co-channel interference between beams is considered. Based on the iterative algorithm and convex optimization, a suitable low-orbit constellation is formulated. The two beam-hopping beam resource scheduling strategies can achieve higher system throughput compared with the traditional strategy, and bear better delay performance at the same time. They also adapt to the uneven distribution of user service requirements.