无线Ad Hoc网络中改进的DYMO路由协议研究  

Research on improved DYMO routing protocol in wireless Ad Hoc networks

作　　者：韩冰青[1,2] 荆霞[2] 张宏[1] 

机构地区：[1]南京理工大学计算机学院,南京210094 [2]南京审计学院信息科学学院,南京210029

出　　处：《计算机工程与应用》2010年第29期120-123,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(No.70701018);江苏省自然科学基金(No.K2007593;No.07KJB520052)~~

摘　　要：DYMO(Dynamic MANET On-Demand)是Ad Hoc网络中一种反应式按需路由协议,本质上属于单径路由协议,而多径路由能更好地提高网络性能。首先分析了DYMO协议的优点及存在的问题,在此基础上将DYMO和多径路由结合起来,提出了一种改进的DYMO路由协议I-DYMO,利用多条链路不相交路径来发送数据,并将之与源路由结合起来。仿真结果表明该协议提高了分组投递率并降低了端到端平均时延,在动态移动环境下具有较好的稳定性。DYMO（Dynamic MANET On-Demand） is a reactive on-demand routing protocol in mobile ad hoc networks, which is a single-path routing protocol.But multi-path routing can improve network performance better than single-path rout- ing.Firstly,the advantages and problems of DYMO protocol are analyzed.Then an improved DYMO routing protocol（I-DYMO） is proposed to support multi-path routing which utilizes multiple routes of link-disjoint paths to send data.Finally, the protocol is combined with source routing.The simulation results show that it improves the packet delivery fraction and reduces the average end-to-end delay and has good stability in mobile scenes.

关 键 词：Ad HOC网络 动态自组网按需路由协议(DYMO) 多径路由 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]