XU Jin-fu1, JIAO Zhu-qing1, YANG Jing2, et al. Mobile anchor node localization algorithm based on weighted-multidimensional scaling[J]. 2010, 29(11): 128-131.
XU Jin-fu1, JIAO Zhu-qing1, YANG Jing2, et al. Mobile anchor node localization algorithm based on weighted-multidimensional scaling[J]. 2010, 29(11): 128-131. DOI: 10.13873/j.1000-97872010.11.016.
基于移动锚节点的加权多维标度节点定位算法
摘要
针对无线传感器网络节点定位精度不足等原因
提出了一种基于移动锚节点的加权多维标度度节点定位算法
首先通过对移动锚节点的轨迹进行采样
添加虚拟锚节点
增加拓扑约束关系
将虚拟锚节点收集的信息与实际节点之间的信息构成距离矩阵
然后利用奇异值分解计算节点相异性矩阵的逼近阵
通过加权多维标度对节点进行定位。仿真实验表明:与MDS-MAP和MDS-MAP(P)算法相比
该算法具有良好的定位精度。
Abstract
Considering that the node positioning algorithm of wireless sensor networks has shortages
such as less localization precision.A mobile anchor node localization based on weighted-multidimensional scaling is proposed.The algorithm samples the tracks of mobile anchor
adds the virtual anchor
and then computes the approximate matrix of dissimilarity matrix by use of singular value decomposition.The weighted-multidimensional scaling algorithm is used to estimate the position of the node.Simulation results demonstrate that this algorithm can promote localization precision compared with the MDS-MAP and MDS-MAP(P) algorithms.