Abstract: Mobile Ad Hoc network is a self-organizing network in which routing protocols play an important role. The authors described the features of Ad Hoc On-Demand Distance Vector Routing (AODV) protocol and Ad Hoc On-Demand Multipath Distance Vector Routing (AOMDV) protocol and evaluated their performance through a variety of test scenes and different Media Access Control (MAC) protocols in NS2. The experimental results show that AOMDV protocol provides better performance than AODV protocol in terms of average delay and route discovery frequency, and worse performance in terms of packet delivery ratio and normalized rooting load.

Key words: Mobile Ad Hoc Network(MANET), route, Ad Hoc On-Demand Distance Vector Routing(AODV), Ad Hoc On-Demand Multipath Distance Vector Routing(AOMDV), NS2

摘要： 移动无线自组网(MANET)作为一种典型的自组织网络，其路由协议一直是研究的重点。介绍了无线自组网按需平面距离矢量路由(AODV)协议和无线自组网按需多路径距离矢量路由(AOMDV)协议的特点，在NS2模拟软件中使用多种测试场景和不同的介质访问控制(MAC)层协议对这两种路由协议的性能进行了测试和分析。实验结果表明，AOMDV协议在平均延时和路由发现频率上优于AODV协议，在分组投递率和归一化路由开销方面的性能低于AODV协议。

关键词: 移动无线自组网, 路由, 无线自组网按需平面距离矢量路由协议, 无线自组网按需多路径距离矢量路由协议, NS2