高速因特网中含卫星单向链路的路由研究  

Research on Integrating Satellite Unidirectional Links with High Speed Internet

作　　者：强刚[1] 刘增基[1] 水野忠则[2] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071 [2]静冈大学情报学部水野研究室

出　　处：《软件学报》2002年第6期1162-1168,共7页Journal of Software

基　　金：美国休斯公司研究室合作课题资助项目(S1-702438-7)~~

摘　　要：由于多数卫星地面站只具有接收能力而形成了单向链路,无法应用现有的路由协议.为了解决含有卫星单向链路的路由问题,首先针对卫星直播系统的拓扑结构建立了网络模型,并在简化模型的基础上提出了基于环路发现的链路状态路由算法和一种基于服务器的协议——SERP(sever-based routing protocol).通过证明路由算法的收敛性,并利用Network Simulator工具对协议进行仿真的结果,得出SERP的正确性和具有协议开销小的特点,可用以支持在高速因特网中集成宽带卫星网络的动态路由.Unidirectional links brought by many receive-only stations are not suitable for current routing protocols. To solve the unidirectional routing problem, a network model is built for the topology of direct broadcast systems. By simplifying the network model, a link state routing algorithm based on circle discovery and a new protocol SERP (server-based routing protocol) are proposed. By means of proven convergence of the routing algorithm and simulating results from network simulator tool for the protocol, the correctness of SERP is verified, SERP has fewer overheads, SERP supports dynamic routing for integrating broadband satellite networks with high speed internet.

关 键 词：高速因特网 单向链路 路由 卫星直播系统 环路状态 路由协议 卫星通信 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TN927.2[自动化与计算机技术—计算机科学与技术]