一种基于聚类的卫星波束规划方法

A Satellite Beam Planning Method Based on Clustering

针对卫星通信系统点波束的可移动特点,为了提高卫星资源的利用率,将聚类算法引入到波束规划中。通过对地面节点的业务区域统计,动态调整波束的覆盖规划,保证了卫星资源的利用效率及系统的通信容量和服务质量。对算法进行了典型场景的仿真,验证了算法的可行性和高效性。

Satellite communication systems with mobile spot beams are able to adjust beam direction to cover area on earth according to the distribution of clients and service.To improve the efficiency of beams,clustering theory is introduced to deal with this problem.The area to be covered is first clustered into several candidate clusters according to the statistics of client distribution and their throughput requirement,and then the beam assignment is processed by associating candidate areas with specific beams.The efficiency of satellite resource,as well as throughput and QoS of system,lies directly on the assignment of beams.Its feasibility and efficiency are veri-fied by simulations.