Improved Centroid Localization Algorithm in WSNs

摘要：

Wireless sensor networks(WSNs)are more andmore widely used in many different scenarios.Thelocalization information is an important criterion forthe capability of WSNs.Centroid algorithm is aclassical range-free localization algorithm.Afterreceiving the anchor nodes,a node estimates itslocation using the centroid formula.But the set of theasymmetrical anchor nodes distributed around theunknown node may incur large error,and willjeopardize the localization precision.In order to solvethe problem,we propose a Centroid algorithm withselective anchor node localization algorithm(SA-Centroid)for WSNs in this paper.The trianglecentroid and polygon centroid were used and themethod of selecting nearest anchor node was adopted.The experiment results illustrate that our algorithm isvalid and effective.

关键词： localization Centroid WSNs rangefree

作者: Binwei Deng Guangming Huang Lei Zhang Hao Liu

作者单位: Dept.Electronics and Information Engineering Huazhong Normal University,Wuhan 430079,China;Dept.Elec Dept.Electronics and Information Engineering Huazhong Normal University,Wuhan 430079,China

会议类型: 国际会议

会议名称: 2008 3rd International Conference on Intelligent System and Knowledge Engineering(第三届智能系统与知识工程国际会议)(ISKE 2008)

会议地点: 厦门

会议语种:英文

页码: 1260-1264

在线出版日期: 2008-11-17（万方平台首次上网日期，不代表论文的发表时间）