多路径路由协议EMP-AOMDV的研究与实现  

Research and Implementation of Multi-path Routing Protocol EMP-AOMDV

作　　者：邬春学[1] 杨朝梁[1] 

机构地区：[1]上海理工大学计算机工程学院,上海200093

出　　处：《计算机科学》2009年第1期65-67,91,共4页Computer Science

基　　金：国家自然基金项目(No.60573142);湖北省自然科学基金项目(No.2004ABA076);湖北省教育基金重点项目(No.2004D003;D200512002);科学研究计划技术创新基金项目(No.J200512001)资助

摘　　要：为了减少建立路由所产生的延时,AODV路由协议允许拥有积极路由的中间节点响应路由请求,而不考虑该节点当时的负荷,这样虽然快速地建立了路由,但并不一定能有效地传输数据。针对这一问题,在AODV的基础上对一种多路径路由方法MP-AOMDV进行了优化。这种优化的协议我们称为EMP-AOMDV(Enhanced Ad hoc On-demand Multi-path Vector Routing Protocol)。结果表明改进的协议和原协议相比,降低了端到端的延时和丢包率,提高了传输效率。In AODV routing protocol, an intermediate node can reply a RREQ when it has a route with a sequence number that is greater than or equal to that contained in the RREQ, no matter how many packets are waiting to send in it. These routes＂ performance may degrade because local congestions may incur on those nodes with the increase of offered load. To solve this problem, a multi-path routing methods MP-AOMDV had been optimized on the basis of AODV. This optimized protocol is called EMP-AOMDV （Enhanced Ad hoc On-demand multi-path Vector routing protocol）. The simulation results show that the protocol is improved compared to the original protocol. End-to-end delay and packet loss rate are all reduced,and the transmission efficiency is improved at the same time.

关 键 词：AD HOC网络 多路径路由协议 拥塞改进 NS-2仿真 EMP-AOMDV 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术] TN929.5[自动化与计算机技术—计算机科学与技术]