AODV路由协议断链修复的优化
首发时间:2010-12-17
摘要:介绍了按需距离矢量路由协议(AODV)的本地修复机制,对产生断链的原因进行分析,针对这些原因提出一种AODV路由协议的本地修复机制优化方法,该方法要求用发现断链节点的上一跳节点发起第一次的路由修复,适当远离出错区域以修复路由,减少路由修复后再断链的机率,在中等规模的无线网络中对控制网络开销及减小端到端延时方面有一定改善,通过NS2仿真证实改进后的协议性能一定程度上优于原协议。
关键词: 无线自组织网络 路由协议 AODV 链路修复 NS2 仿真
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Optimization of Repairing Broken Link of AODV Routing Protocol
Abstract:In this paper, local repair mechanism of AODV routing protocol is introduced, the causes of breaking link are analysed. According to these reasons, optimization of the local repair mechanism for AODV routing protocol is proposed. Improved protocol requires the node before the node detecting broken link to initiate the first routing repair and to repair routing away form error zone. It reduces probability of breaking again after routing repaired and decreases network cost and end-to-end delay in medium-size wireless network. The NS simulation results indicate that the improved method has better performance compared to the original protocol to some extent.
Keywords: Ad Hoc routing protocol AODV local repair NS2 simulation
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