计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (3): 55-58.

• 网络、通信、安全 • 上一篇    下一篇

基于LTP-RSS的机会网络路由改进方法

李永涛,竺小松,敦  鹏   

  1. 电子工程学院,合肥 230037
  • 出版日期:2014-02-01 发布日期:2014-01-26

Improved routing approach based on LTP-RSS in opportunistic networks

LI Yongtao, ZHU Xiaosong, DUN Peng   

  1. Electronic Engineering Institute, Hefei 230037, China
  • Online:2014-02-01 Published:2014-01-26

摘要: 针对机会网络中节点间连接频繁断裂,节点间可用连接时长短的特点,提出了利用接收信号强度值变化来预测可用连接时长。在此基础上,给出了基于连接时长预测的机会网络路由改进方法。改进方法在每次消息发送前先对此次发送是否会中断进行预测。实验表明,该方法可以减少消息发送的网络开销,降低消息发送过程中由于连接断裂导致消息发送中断的机率,提高数据转发性能。

关键词: 连接时长预测, 接收信号强度, 路由改进, 机会网络, 发送中断

Abstract: In opportunistic networks the line between mobile nodes breaks frequently, which makes the transmission between nodes abort frequently. To solve the problem, an improved approach, called Link Time Prediction based on RSS(LTP-RSS) is proposed. With the link time prediction, a node can predict whether the transmission would abort before the transmission starts. Experiments show that LTP-RSS reduces the network overhead of delivered message and the probability of transmission abort from link breaking.

Key words: Link Time Prediction(LTP), Received Signal Strength(RSS), routing improvement, opportunistic networks, transmission abort