改进的无线传感器网络中多维定标定位算法

摘要

由于经典多维定标MDS-MAP算法在不规则网络区域中进行定位时存在较大的误差,结合以往算法的经验,一种改进的基于多维定标的算法MDS-MAP(I,E)被提出,该算法根据锚节点的位置信息,来确定各个节点采用最佳的线性变换,并由此获得定位坐标,仿真结果显示该算法在各种拓扑结构下都能取得较好的定位结果,并且比之前算法取得了明显的改进.%MDS-MAP is sensitive to the shape of the network.This paper presents MDS-MAP(I,E) ,a modified algorithm based on MDS-MAP which improves the localization task in irregular networks.According to the positional information of the anchor nodes, each node gets its positional information through different linear transformation.The simulation results show that the algorithm is more reliable in various topologies and achieves a significant performance improvement upon existing method.