东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (3): 354-358.DOI: 10.12068/j.issn.1005-3026.2015.03.012

• 信息与控制 • 上一篇    下一篇

一种链路稳定性预测的分层路由协议

沙毅1， 吕飞1， 方晶晶2， 朱丽春3   

  1. (1．东北大学 信息科学与工程学院， 辽宁 沈阳110819； 2. 沈阳农业大学 信息与电气工程学院， 辽宁 沈阳110866; 3. 中国科学院 国家天文台， 北京100012)
  • 收稿日期:2014-02-17 修回日期:2014-02-17 出版日期:2015-03-15 发布日期:2014-11-07
  • 通讯作者: 沙毅
  • 作者简介:沙毅(1959-)，男，江苏无锡人，东北大学副教授，博士.
  • 基金资助:
    国家自然科学基金资助项目(11273001).

A Hierarchical Routing Protocol of Link Stability Prediction

SHA Yi1， LYU Fei1， FANG Jing-jing2， ZHU Li-chun3   

  1. 1.School of Information Science & Engineering， Northeastern University， Shenyang 110819， China； 2. College of Information and Electrical Engineering， Shenyang Agricultural University， Shenyang 110866， China; 3. National Astronomical Observatories， Chinese Academy of Sciences， Beijing 100012， China.
  • Received:2014-02-17 Revised:2014-02-17 Online:2015-03-15 Published:2014-11-07
  • Contact: SHA Yi
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摘要： 提出了LSP-DOA路由协议.该协议继承了DOA算法的局部路由修复的优点，基于Two-Ray无线传播模型和Friis公式计算链路的稳定性，并构造一个阈值;当链路稳定性小于阈值时，便发出警告，启动路由发现寻找可以及时替换即将中断的链路的新路径.仿真结果表明，与路由协议AODV，DSR和DOA相比，LSP-DOA路由协议提高了系统分组投递率、路由修复成功率和平均路径长度，降低了控制开销和平均端到端延时，能够长时间维持稳定高效的活跃路径，改善了网络整体性能.

关键词: ad hoc网络, 分层路由, 链路稳定性, Two-Ray模型, 预测

Abstract: An LSP-DOA routing protocol was proposed， in which the DOA algorithm’s advantages in local routing repairing were inherited. In this protocol， the link stability was calculated based on the Two-Ray radio propagation model and Friis formula， and a threshold value was set. When the link stability was less than the threshold value， a warning would be triggered and the route discovery process was started in order to find out a new path to replace the link which might be interrupted. Simulation results showed that the LSP-DOA routing protocol could reduce control overhead and end-to-end delay， improve packet delivery ratio， route repair success and average route length， maintain a stable efficient route for a long time， thus improve the network performance by comparing with DOA， AODV and DSR.

Key words: ad hoc network, hierarchical routing, link stability, Two-Ray model, prediction

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