卫星网动态拓扑、长变时延等特性及其所处的复杂空间环境带来的通信干扰是影响网络通信稳定的重要因素。综合考虑这些影响因素,提出了一种衡量星间链路稳定性的模型,并基于此模型给出了LFO/MEO双层卫星网的星间链路设计方案.结合具体的星座实例对该方案进行了仿真分析,结果表明通过适当的参数调整该模型可以适应不同的网络性能要求。
Dynamic network topology, long transport delay and interferences from outer space make the intersatellite communications unstable. In this paper, a link stability model of satellite networks is presented. Based on this model, an intersatellite link design strategy is introduced for a LEO/MEO satellite network. The simulation results show that the link stability model is applicable to different performance requirements of satellite networks.