东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (2): 165-168.DOI: -

• 论著 • 上一篇    下一篇

基于移动节点的无线传感器网络覆盖优化

黄月;吴成东;张云洲;司鹏举;   

  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:2013-01-17
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(60874103)

Coverage optimization of wireless sensor networks based on mobile nodes

Huang, Yue (1); Wu, Cheng-Dong (1); Zhang, Yun-Zhou (1); Si, Peng-Ju (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-01-17
  • Contact: Huang, Y.
  • About author:-
  • Supported by:
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摘要： 为了提高无线传感器网络监测区域的覆盖率,研究了节点随机部署的无线传感器网络的覆盖优化问题.在含有移动节点的混合无线传感器网络中,采用更符合实际情况的基于误警率的概率探测感知模型,以区域覆盖率评价覆盖效果.通过计算节点的联合探测概率寻找覆盖空洞,提出了基于最佳概率的移动节点优化策略.仿真结果表明:所提方法能够有效探测覆盖空洞,并利用移动节点对其进行修复;在移动节点数量有限的情况下,以较小的平均移动距离提高了网络覆盖率.

关键词: 无线传感器网络, 移动节点, 覆盖优化, 误警率, 概率探测

Abstract: To improve the coverage rate of wireless sensor networks (WSNs) monitoring some regions, coverage optimization is studied for WSNs where nodes are randomly deployed. A probabilistic detection model considering false alarm rate, which is more practical, is applied to a mixed WSN with mobile nodes. A regional coverage rate is used to evaluate network coverage effect. Coverage holes are determined by calculating the joint detection probabilities of nodes, and a mobile nodes' optimization strategy based on the best probability is proposed. Simulation results show that the method proposed can find out coverage holes effectively and repair them by moving mobile nodes in smaller distances, thus improving the network coverage rate.

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