An Efficient Algorithm for Mobile Localization in Sensor Networks  

作　　者：Xin-Min Xu 1 Yao Chen 1 Wen-Yao Xu 2 Fang Gong 2 1 Department of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China 2 Electrical Engineering Department,University of California,Los Angeles 90095,USA 

出　　处：《International Journal of Automation and computing》2012年第6期594-599,共6页国际自动化与计算杂志（英文版）

摘　　要：Node localization is a fundamental problem in wireless sensor network.There are many existing algorithms to estimate the locations of the nodes.However,most of the methods did not consider the presence of obstacles.In practice,obstacles will lead to blockage and reflection of communication signals between sensor nodes.Therefore,the presence of obstacles will greatly affect the localization result.In this paper,we implement an obstacle-handling algorithm based on the localization tool developed by MIT,The experimental result shows that the enhanced algorithm can reduce the average distance error by up to 46 %,compared to the original algorithm.Node localization is a fundamental problem in wireless sensor network.There are many existing algorithms to estimate the locations of the nodes.However,most of the methods did not consider the presence of obstacles.In practice,obstacles will lead to blockage and reflection of communication signals between sensor nodes.Therefore,the presence of obstacles will greatly affect the localization result.In this paper,we implement an obstacle-handling algorithm based on the localization tool developed by MIT,The experimental result shows that the enhanced algorithm can reduce the average distance error by up to 46 %,compared to the original algorithm.

关 键 词：Wireless sensor network automatic localization intelligent computing OPTIMIZATION simulation. 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]