Abstract: In this paper, the authors analyzed the AODV routing protocol and proposed AODV-BR routing protocol to improve the route maintenance in AODV by finding a backup route as to fix the weak link. The theoretical analysis and simulation results prove that this protocol can reduce connection failures and the packet loss rate.

Key words: mobile Ad Hoc network, route maintenance, Ad Hoc On-demand Distance Vector routing (AODV), backup route

摘要： 针对移动Ad Hoc网络AODV路由协议的路由维护的缺点，提出了AODV-BR路由协议，即具有备份路由的AODV路由协议。新协议通过为网络中的连接链路增加一条备份路由提高了AODV路由维护的性能。仿真实验表明AODV-BR有效减少了网络中链路中断的数量，降低了丢包率。

关键词: 移动Ad Hoc网络, 路由维护, AODV, 备份路由