一种基于反向探测的低轨星座路由算法  

A Reverse Detection Based Routing Algorithm in LEO Satellite Constellation Networks

作　　者：晏坚[1] 王京林[1] 曹志刚[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《宇航学报》2011年第2期414-419,共6页Journal of Astronautics

基　　金：国家自然科学基金资助项目(60672106);国家863计划(2007AA01Z2b6)

摘　　要：针对低轨卫星星座通信系统动态拓扑结构的特点,提出了一种基于反向探测的路由算法(ReverseDetection Based Routing,RDBR),采用分布式实现且具有极低的运算复杂度,适合于星上实时计算,对于提高星座网络的自主运行能力具有重要意义。与快照序列(Sequent Snap Shots,SSS)算法的对比分析和仿真表明,RDBR算法以有限的信令开销取得的路由性能优于60s快照序列算法。Based on the dynamic topology of the Low Earth Orbit satellite constellation networks,a novel routing algorithm named as the Reverse Detection Based Routing（RDBR） is proposed.It is a distributed algorithm with very low computational complexity,so it is very suitable for the On-Board-Processing and also important to improve the constellation network capability of autonomous operation.The analysis and simulation results show that with acceptable low overhead signaling,the RDBR algorithm can achieve better performance compared with the Sequent Snap Shots（SSS） algorithm with 60s snapshot.

关 键 词：低轨卫星星座 路由 星上处理 

分 类 号：TN927.2[电子电信—通信与信息系统]