面向低轨卫星通信的异质终端协同资源调度方法

Cooperative Resource Scheduling for Heterogeneous Terminals in Low-Orbit Satellite Communication Systems

低轨卫星通信系统中,地面业务请求的非均匀分布和复杂的波束间干扰使得资源调度成为一项具有挑战性的任务。面向多星服务异质终端场景,首先提出了一种基于层次聚类的多星负载均衡异质终端关联算法。其次,进一步提出了基于多星匹配博弈的波束调度算法和基于连续凸近似的多星多波束功率分配算法,实现波束和功率资源的高效调度。仿真结果表明,与其他基准方案相比,所提出的算法具有更好的总满意度性能。

In the low Earth orbit(LEO)satellite communication system,the non-uniform distribution of ground service requests and complex inter-beam interference challenge the resource scheduling task.For the scenario of multi-satellite serving heterogeneous terminals,this paper firstly proposed a multi-satellite load-balancing association algorithm based on hierarchical clustering for heterogeneous terminals.Secondly,a beam scheduling algorithm based on multi-satellite matching game and a power allocation algorithm based on successive convex approximation are further proposed to realize efficient scheduling of beam and power resources.Simulation results show that the proposed algorithms have a better overall satisfaction performance compared with other benchmark schemes.