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计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

基于路由长度的多径路由协议

王顶,王珊珊,席效禹   

  1. (西北工业大学电子信息学院,西安710129)
  • 收稿日期:2013-08-12 出版日期:2014-09-15 发布日期:2014-09-12
  • 作者简介:王 顶(1973 - ),男,副教授、博士,主研方向:宽带无线通信;王珊珊、席效禹,硕士研究生。
  • 基金资助:
    西北工业大学基础研究基金资助项目(GBKY1011)。

Multipath Routing Protocol Based on Routing Length

WANG Ding,WANG Shan-shan,XI Xiao-yu   

  1. (College of Electronic and Information,Northwestern Polytechnical University,Xi’an 710129,China)
  • Received:2013-08-12 Online:2014-09-15 Published:2014-09-12

摘要: 针对单径路由协议在高速Ad hoc 网络中平均端到端时延和丢包率高的问题,在动态源路由协议的基础 上,提出基于邻居节点变化率与路由长度的多径路由协议DSR_HD。利用HELLO 消息获得一跳范围内可用邻居 数,根据邻居数求得节点的邻居节点变化率。在路由发现过程中,采用路由距离与路由跳数相结合的方法计算路 由长度,并选择邻居节点变化率和路由长度低的节点加入路由,从而提高路由的稳定性。仿真实验结果显示, DSR_HD协议可以有效减少数据分组传输的端到端时延及路由开销,提高分组成功投递率。

关键词: 无线自组织网络, 多径路由, 路由长度, 邻居变化率, DSR_HD 路由协议

Abstract: Aiming at the shortcomings that signal path protocol has high end-to-end delay and packet loss rate in highspeed environments, this paper modifies the Dynamic Source Routing ( DSR ) protocol, and by using the HELLO message,the number of neighbors can be obtained. According to the number of neighbors,it can calculate the neighbor change ratio. During the routing discovery,it can calculate the length of the routing by using the method of routing distance and routing hops combination,and choose the neighbor node whose neighbor change ratio and route length are lower join the routing. So it can choose the high degree of stability of routing. Simulation results show that under the high-speed environment the algorithm can control the end to end delay of data packet transmission,dramatically increase the successful package delivery ratio and reduce routing overhead.

Key words: Ad hoc network, multipath routing, routing length, neighbor change ratio, DSR_HD routing protocol DOI:10. 3969/

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