卫星网络中基于区域扩散的动态路由协议

Zone-diffusion and dynamic routing protocol in satellite networks

针对卫星网络的特点,提出一种基于区域扩散的动态路由协议(ZDRP)。ZDRP协议采用动态按需的路由思想,以区域为单位进行信息交换,在源和目的之间建立路由;使用OPNET仿真软件分别在单层与双层星座模型中对ZDRP协议进行仿真验证。将仿真结果与其他协议进行比较,仿真结果表明ZDRP协议在单层或双层极轨星座网络下的平均网络建立时间以及单路径搜索时间均优于OSPF与RIP协议,端到端时延和丢包率的性能均优于Flooding路由协议。

According the characteristics of Satellite networks, a Zone-diffusion Dynamic routing protocol （ZDRP） is proposed, the ZDRP operates in dynamic and on-demand mode to switch messages in the unit of zone and setup path between source and destination, The OPNET simulation software is used to simulate and validate ZDRP both in single layer and bilayer constellation model, By comparing with other protocols, the results show that the average network setup time and the path searching time of ZDRP are better than OSPF and RIP, the end to end delay and the package loss rate are better than Flooding route protocol.