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无线Ad Hoc网络中改进的DYMO路由协议研究
引用本文:韩冰青,荆霞,张宏.无线Ad Hoc网络中改进的DYMO路由协议研究[J].计算机工程与应用,2010,46(29):120-123.
作者姓名:韩冰青  荆霞  张宏
作者单位:1. 南京理工大学,计算机学院,南京,210094;南京审计学院,信息科学学院,南京,210029
2. 南京审计学院,信息科学学院,南京,210029
3. 南京理工大学,计算机学院,南京,210094
基金项目:国家自然科学基金,江苏省自然科学基金
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。

关 键 词:Ad  Hoc网络  动态自组网按需路由协议(DYMO)  多径路由
收稿时间:2009-3-9
修稿时间:2009-5-5  

Research on improved DYMO routing protocol in wireless Ad Hoc networks
HAN Bing-qing,JING Xia,ZHANG Hong.Research on improved DYMO routing protocol in wireless Ad Hoc networks[J].Computer Engineering and Applications,2010,46(29):120-123.
Authors:HAN Bing-qing  JING Xia  ZHANG Hong
Affiliation:1.School of Computer Science,Nanjing University of Science and Technology,Nanjing 210094,China; 2.School of Information and Science,Nanjing Audit University,Nanjing 210029,China)
Abstract: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.
Keywords:Ad Hoe network  Dynamic MANET On-Demand(DYMO)  multi-path routing
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