移动Ad Hoc网络DSR路由协议的改进  

Improvement of DSR Routing Protocol in Mobile Ad Hoc Network

作　　者：王北光[1] 李立新[1] 谢涛[1] 

机构地区：[1]西南大学计算机与信息科学学院,重庆400715

出　　处：《计算机技术与发展》2011年第8期121-124,128,共5页Computer Technology and Development

摘　　要：在Ad Hoc网络中,针对DSR协议对快速移动的网络拓扑响应不及时,容易产生许多失效路由及产生的路由效率低和能耗不平衡等缺点,提出了一种改进的DSR路由协议(Improved-DSR简称IDSR)。该协议为每个节点增加了邻居表结构与能量均衡机制,使节点能够及时地更新缓存中的失效路由,并根据邻居表中节点状态缩短路由,同时节点通过延迟转发路由发现包的时间来选择生存时间长的路由。仿真结果表明:IDSR与传统的DSR协议相比,IDSR明显提高了分组送达比例,降低了平均延时,延长了网络的生存时间。In Ad Hoc network,an improved DSR protocol（Improved-DSR abbreviate IDSR） is proposed for the disadvantages of traditional DSR protocol.For examples,the traditional DSR is not timely to response rapid mobile network topology and easy to produce many invalid routings,at the same time,takes place low routing efficiency and unbalanced energy consumption.IDSR proposed the neighbor table structure and energy balance mechanism for each node so that the nodes could update the failure routings in the cache and shorten the routings according to nodes status in the neighbor table,while the nodes could select long life routings by delaying the route discovery packets.Simulation results show that IDSR can improve group served proportion and reduce the average delay time and prolong the network life time obviously.

关 键 词：AD HOC网络 DSR协议 邻居表 能量均衡机制 仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]