计算机工程与应用 ›› 2016, Vol. 52 ›› Issue (9): 112-115.

• 网络、通信与安全 • 上一篇    下一篇

节点分布对无线传感器节点定位性能的影响

李新春,王晓明   

  1. 辽宁工程技术大学 电子与信息工程学院,辽宁 葫芦岛 125105
  • 出版日期:2016-05-01 发布日期:2016-05-16

Node distribution influence on performance of wireless sensor network node localization

LI Xinchun, WANG Xiaoming   

  1. Electronic and Information Engineering College of Liaoning Technical University, Huludao, Liaoning 125105, China
  • Online:2016-05-01 Published:2016-05-16

摘要: 为了提高无线传感器节点的定位准确性,针对当前算法没有考虑节点分布对无线传感器节点定位性能的影响,提出一种考虑节点分布的无线传感器节点定位算法。分析节点分布对无线传感器节点定位性能的影响,估计锚节点之间的实际距离和估算距离的误差,并采用DV-Hop算法进行初步定位,综合学习粒子群算法对DV-Hop算法的定位误差进行修正,采用多个实验对算法性能测试。实验结果表明,无论在节点分布均匀或分布不均匀条件下,该算法可以较好地修正DV-Hop算法定位误差,均明显提高了未知传感器节点的定位精度。

关键词: 无线传感网络, DV-Hop定位算法, 综合学习粒子群算法, 定位误差

Abstract: In order to improve the location accuracy of wireless sensor network, a novel node localization algorithm of wireless sensor networks is proposed based on improved DV-Hop algorithm. Firstly, the distance error between actual distance and the estimated distance of anchor nodes is analyzed, and the DV-Hop algorithm is used to estimate the localization; secondly, the comprehensive learning particle swarm optimization algorithm is used to correct the localization error of DV-Hop algorithm; finally, the simulation experiment is carried out to test the performance on Matlab 2012 platform. The simulation results show that the proposed algorithm can correct the localization error of DV-Hop algorithm, and improve the localization accuracy of wireless sensor network significantly.

Key words: wireless sensor network, DV-Hop algorithm, comprehensive learning particle swarm optimization algorithm, localization error