计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (29): 120-123.DOI: 10.3778/j.issn.1002-8331.2010.29.033

• 网络、通信、安全 • 上一篇    下一篇

无线Ad Hoc网络中改进的DYMO路由协议研究

韩冰青1,2,荆 霞2,张 宏1   

  1. 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
  • 收稿日期:2009-03-09 修回日期:2009-05-05 出版日期:2010-10-11 发布日期:2010-10-11
  • 通讯作者: 韩冰青

Research on improved DYMO routing protocol in wireless Ad Hoc networks

HAN Bing-qing1,2,JING Xia2,ZHANG Hong1   

  1. 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
  • Received:2009-03-09 Revised:2009-05-05 Online:2010-10-11 Published:2010-10-11
  • Contact: HAN Bing-qing

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。

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 routing.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.

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