计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (6): 99-101.

• 网络、通信、安全 • 上一篇    下一篇

多径路由协议AOMDV的改进与性能分析

肖克江,熊忠阳,张玉芳   

  1. 重庆大学 计算机学院,重庆 400044
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-02-21 发布日期:2012-02-21

Improvement and performance analysis of multipath AOMDV routing protocol

XIAO Kejiang, XIONG Zhongyang, ZHANG Yufang   

  1. College of Computer Science, Chongqing University, Chongqing 400044, china
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-02-21 Published:2012-02-21

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。

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

Abstract: Mobile Ad hoc Network(MANET) is a mobile, multihop wireless network in which effective routing algorithm is critical. Because of the mobility of Ad hoc network, the active route of Ad 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 results 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.

Key words: Mobile Ad hoc Network, routing algorithm, Ad hoc On-demand Multipath Distance Vector Routing(AOMDV), NS-2 simulation