摘要： 针对AOMDV协议备用路径利用率低、路由发现频率高等问题，提出一种基于建立旁路的路径修复策略BB-AOMDV。通过RREQ与RREP 分组获得各节点到目的节点的第2跳信息，路径失效时，断点处的上游节点根据此信息与断点下游节点搭建旁路路径，数据可绕过断点通过旁路进行正常传输。仿真结果表明，该策略能在提高分组投递率的同时降低归一化路由开销与路由发现频率。

关键词: Ad Hoc网络, AOMDV协议, 旁路, 路由修复, 多径路由, BB-AOMDV策略

Abstract: Aiming at some issues of AOMDV protocol such as low utilization of alternate paths and high frequency of route discovery, this paper proposes a path repair strategy based on bypass establishment named BB-AOMDV. It gets the second hop information of each node to destination by RREQ and RREP packet. Upstream node of breakpoint can build up a bypass path with the downstream node of breakpoint according to these information when path fails. Data can be transmitted normally through this bypass around the breakpoint. Simulation results show that the strategy can improve packet delivery rate and meanwhile effectively reduce the normalized routing overhead and the frequency of route discovery.

Key words: Ad Hoc network, AOMDV protocol, bypass, route repair, multi-path route, Build Bypass-AOMDV(BB-AOMDV) strategy

中图分类号: 

• TP393