东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (2): 211-214.DOI: -

• 论著 • 上一篇    下一篇

移动无线传感器网络中链路层连接变化分析

李大舟;赵海;朱剑;张宽;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    教育部高等学校科技创新工程重大项目培育资金资助项目(708026)

Analysis of change of connections on link layer in mobile wireless sensor networks

Li, Da-Zhou (1); Zhao, Hai (1); Zhu, Jian (1); Zhang, Kuan (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Li, D.-Z.
  • About author:-
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摘要： 动态无线传感器网络中的一个关键问题就是节点移动对网络连接变化的影响.分析了移动无线传感器网络链路层中影响连接变化的因素,即节点移动速度和网络承载率,并以速度半径比的概念有效地描述节点在网络中的移动速度,研究了二者共同作用时的影响情况.通过对网络中链路层连接变化的深入研究和仿真实验得到的大量实验数据,最后得出连接变化率随着速度半径比增大而增大,随着网络承载率增大而减小的结论;该结论既可为无线传感器网络的实际应用提供依据,又可为上层协议的研究提供有价值的参考.

关键词: 移动无线传感器网络, 连接变化, 移动节点, 网络承载率, 速度半径比

Abstract: A key problem in dynamic wireless sensor network is the effect of moving nodes on the change of network connections. Analyzing the influencing factors on the change of the connections on the link layer of mobile wireless sensor networks, i. e., the node moving speed and network load ratio, the node moving speed in network is described efficiently with the concept of speed radius ratio so as to investigate the joint effect of the two influencing factors. Based on the in-depth study on the change of link layer connections in network and lots of data resulting from simulative tests, a conclusion is drawn that the connection changing rate increases with increasing speed radius ratio but decreases with increasing network load ratio. The conclusion provides a valuable reference for the applications in wireless sensor networks and the study on upper layer protocols.

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