无线Ad Hoc网络中AODV路由算法的研究与改进

摘要

无线Ad Hoc网络是一个多跳的、临时的、对等的自治系统,它由一组带有无线收发信装置的移动节点组成.由于在军事通信、紧急救援、传感器网络等通信场合的广泛应用,无线Ad Hoc网络成为当前研究的热点之一.针对无线AdHoc网络中AODV路由协议算法在网络拓扑结构改变后出现的性能缺陷,提出了一种改进后的AODV路由协议M_EAODV,通过设置多条备份路由来减少链路修复.仿真结果表明,改进后的AODV在分组传送成功率、平均端到端时延、路由开销等性能方面都得到了有效改善,能够在链路中断后迅速启用备份路由,更适应于拓扑结构变化快的网络环境.%Wireless Ad Hoc network is a multi-jump,temporarily,equivalence autonomy system, which consists of a set of mobile node with wireless transceiver letters device. Duc to the wide use in military communications,emergency rescue,sensor network and other communication occasions, wireless Ad Hoc network has become the current research hotspot. For AODV routing protocol in wireless Ad Hoc network appearing some function defect when the network topological structure changed, propose an improved AODV routing protocols M EAODV,by setting multiple backup routing to reduce link road repair. Simulation results show that success in packets transmitting,average edge-to-edge delay,routing spend in the modified AODV are improved,can effectively use backup routing when the link road break,more suitable for the network environment of topological structure change fast.