Ad Hoc路由协议在不同移动环境中的性能仿真

影响Ad Hoc网络路由性能的因素很多,如节点的移动、网络的负载、节点数目的变化等;而其中节点的移动是其中最关键的因素之一.该文对四种典型的路由协议进行了理论分析,并提出了一个仿真模型,使得节点在网络所在区域内以不同的速度移动.利用GlomoSim仿真工具对四种路由协议进行了仿真,对路由协议主要的几种参数：平均报文接收率、平均端到端的延时与路由控制报文的总负载进行了统计分析.仿真结果与理论分析一致,并对仿真结果进行了详细的分析比较,得出了AODV路由协议最适合移动要求较高的网络的结论.

Performance Simulation of Ad Hoc Routing Protocols in Different Mobile Environment

There're many factors affecting the performance of Ad Hoc routing protocols,such as the mobility of nodes,the overload of the network,the number of the network etc.Among them,the mobility is one of the most key factors.Four typical Ad Hoc routing protocols have been theoretically analysed and a simulation model is proposed in order to change the average moving speed of the nodes.Using GloMoSim to simulate and compare four routing protocols,the key statistics:average packet delivery ratio,average end-to-end delay and the overall routing control overload are collected and analysed.The simulation statistics are consistent with corresponding theoretical analyse.The performance of each protocol is studied and the results indicate that AODV is the most suitable protocol for high mobility environment.