AODV协议路由修复算法改进研究  

Research on Improved Route Repair Algorithm of AODV Protocol

作　　者：蔡保国[1] 王耀国[1] 贾军[1] CAI Baoguo;WANG Yaoguo;JIA Jun(Wuhan Maritime Communication Research Institute,Wuhan 430205)

机构地区：[1]武汉船舶通信研究所,武汉430205

出　　处：《计算机与数字工程》2017年第6期1166-1169,共4页Computer & Digital Engineering

摘　　要：论文对AODV协议的路由修复算法进行了改进研究。通过修改路由响应包(RREP)和数据包的监听机制,节点不仅建立了到目的节点的前向路由,也建立了到源节点的反向路由,减少了寻路带来的开销。除此之外,论文还对中断路由的修复策略进行了调整,以进一步提高路由修复的成功率。基于Qual Net4.5的仿真结果表明,论文提出的路由修复改进算法在未明显增加数据包的平均端到端延时和控制开销的情况下,进一步提高了AODV协议的分组投递率。An improved route repair algorithm of AODV protocol is researched in this paper.By means of the modifications tooverhearing mechanism of Route Reply(RREP)packets and data packets,a node can create forward routes to destination nodesand backward routes to source nodes,which decreases the costs caused by routing.Besides,the repair measures of broken routesare adjusted to improve the success rate of route repair in this paper.The simulation results based on QualNet4.5show that the im?proved route repair algorithm proposed in this paper can efficiently improve packet delivery ratio of AODV protocol and clearly de?crease its control overheads in case of not obviously increasing average end-to-end delay of data packets.

关 键 词：路由修复算法 监听机制 中断路由 平均端到端延时 控制开销 分组投递率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]