Research on Improved Multidimensional Scaling Localization Algorithm for Wireless Sensor Network
Wireless sensor networks,which are energy limited,low hardware configuration and proneness to invalidation,puts a high demand on the positioning algorithm.Therefore the improved multidimensional scaling (IMDS) algorithm is proposed.In IMDS,firstly,local positioning areas (LPA) are established by an adaptive search algorithm.So the centralized multidimensional scaling (MDS) algorithm is changed into a distributed one.Then the shortest path distances between nodes on LPA are corrected with the geometric correction method (GCM) and adjusting weight correction method (AWCM).The distances between nodes become more accurate.Finally,with information of the public nodes of LPA and anchor nodes,we get the wireless sensor nodes coordinates through coordinate transformation by the SMACOF algorithm and the classical MDS algorithm.
Wireless sensor network Local positioning areas Multi-scaling Distance correction
Liang Tao Shuai Xu Haiyong Chen Hexu Xun
Institute of Electrical and Automation, Hebei University of Technology,Tianjin 300130, China;puda So Institute of Electrical and Automation, Hebei University of Technology,Tianjin 300130, China
国际会议
重庆
英文
3932-3936
2010-12-11(万方平台首次上网日期,不代表论文的发表时间)