多径路由协议AOMDV的改进与性能分析  

Improvement and performance analysis of multipath AOMDV routing protocol

作　　者：肖克江[1] 熊忠阳[1] 张玉芳[1] 

机构地区：[1]重庆大学计算机学院,重庆400044

出　　处：《计算机工程与应用》2012年第6期99-101,113,共4页Computer Engineering and Applications

基　　金：中国博士后科学基金(No.20070420711);重庆市科委基金资助项目(No.CSTC2008BB2191)

摘　　要：移动无线自组网是一种移动多跳无线网络,有效的路由算法是关键。由于移动自组网的移动性,会使得无线自组网按需多径距离矢量路由(AOMDV)协议的活动路由不再是最短路径。针对此不足,提出了改进方法:构建两跳路由,然后利用两跳路由信息对活动路由进行动态优化,使路径更短。NS-2仿真结果表明,改进的AOMDV协议在路由发起频率、端到端平均时延、归一化路由开销和数据分组投递率等方面的性能均比AOMDV效果好。Mobile Ad hoc Network （MANET） is a mobile, multihop wireless network in which effective routing algorithm is critical. Because of the mobility ofAd hoc network, the active route ofAd hoc On-demand Multipath Distance Vector Routing（AOMDV） is no longer the shortest routing. An improved approach to the mentioned deficiencies is proposed： two-hop route is constructed and then the two-hop route information is used to optimize the active route dynamically, making the route distance more shorter. NS-2 simulation resuits indicate that the improved AOMDV can obtain lower route discovery frequency, lower end-to-end average delay, smaller normalized routing load and more packet delivery ratio than those of the AOMDV.

关 键 词：移动无线自组网(MANET) 路由算法 无线自组网按需多径距离矢量路由 NS.2仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]