摘要
针对AODV路由发现缺少路径稳定性考虑以及本地修复没有避开不稳定区域的缺陷,提出了基于邻节点残存率的AODV-NSR优化算法。借助于邻节点残存率AODV-NSR对路由发现算法进行优化,使路径稳定性得以提高;借助于断链责任检测和数据抢救机制,AODV-NSR对本地修复算法进行优化,使本地修复尽可能避开不稳定区域,从而降低二次断链的几率。仿真实验表明,AODV-NSR对Ad hoc网络的性能有较为明显的提高。
In the traditional AODV routing protocol, the route discovery algorithm does not consider route＇ s stability, and the local repair algorithm does not avoid the instability regional around broken link. Aiming at the above-mentioned problems, the article proposed an improved AODV algorithm based on neighbor survival ratio （AODV-NSR）. With neighbor survival ratio of node, AODV-NSR improved the route discovery algorithm and enhanced route＇ s stability. With broken link responsibility detecting and data rescue mechanisms, AODV-NSR improved the local repair algorithm and made repaired route avoid the instability regional at full steam, and so diminished the probability of broken link. The result of the simulation indicates that AODV-NSR protocol can reduce the end-to-end delay, routing overhead and enhance packet delivery rate.
出处
《计算机应用研究》
CSCD
北大核心
2010年第3期1102-1105,1109,共5页
Application Research of Computers
基金
南京农业大学青年科技创新基金资助项目(KJ09026)
