SMR路由协议的改进与仿真分析

摘要

在Ad Hoc网络中,分裂多径路由SMR协议存在数据分割传输效率低与路由维护中路由发现条件不合理的问题.为此,提出一种改进的路由协议P-SMR.该协议采用以时延作为路径负载影响因子的数据分配方法来提高传输效率,运用判断路径断开条数和路径生存时间的方法作为路由发现的条件.仿真结果表明,与SMR和DSR协议相比,P-SMR协议可降低平均端到端传输延时和路由开销,并能提高分组投递率.%Split Multipath Routing(SMR) protocol can not transmit split data efficiently and the condition of route discovery during route maintenance process is unreasonable in Ad Hoc network. To solve the problem, this paper proposes a new routing protocol P-SMR, the protocol uses delay as influence factor of the data allocation methods to improve transmission efficiency, and takes the number of broken paths and survival time of paths as conditions to find route. Simulation result show that compared with SMR and DSR protocol, average end-to-end delay and route cost decrease, and packet delivery fraction improves.