WSN中基于多功率移动锚节点的智能定位算法  

WSN Intelligent node localization algorithm based on multi-power mobile anchor

作　　者：毛永毅[1] 陈鹏[2] 

机构地区：[1]西安邮电大学电子工程学院,陕西西安710121 [2]西安邮电大学通信与信息工程学院,陕西西安710121

出　　处：《西安邮电大学学报》2016年第3期48-53,共6页Journal of Xi’an University of Posts and Telecommunications

基　　金：陕西省自然科学基金资助项目(2014JM2-6088)

摘　　要：针对无线传感器网络节点定位,提出一种基于多功率移动锚节点的改进鸡群定位算法。移动锚节点按照移动模型遍历定位区域,通过功率控制发射信标信号,未知节点接收到信标信号后,利用测距模型建立距离方程并采用最小二乘法计算节点坐标,再使用鸡群算法对节点坐标进行修正。仿真结果表明,改进鸡群定位算法的定位精度和收敛速度皆有所提高。An improved chicken swarm optimization localization algorithm based on mobile anchor is established in WSN to enhance the positioning accuracy.A mobile anchor can move in a target area and launch signals by power control based on moving model.The coordinates of unknown nodes are calculated by the least square method according to range equation after receiving signals from a mobile anchor.Then,the optimal solution is estimated iteratively by chicken swarm optimization algorithm.Simulation results indicate that,the improved algorithm is much better than DV-hop and CC methods in both positioning accuracy and convergence rate.

关 键 词：无线传感器网络(WSN) 节点定位 最小二乘 鸡群算法 多功率移动锚节点 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]