基于MDS的无线传感器网络定位算法的优化  

Optimization of MDS-based localization algorithm for wireless sensor networks

作　　者：万国峰[1] 牛斌[1] 

机构地区：[1]西北民族大学电气工程学院,兰州730030

出　　处：《工业仪表与自动化装置》2012年第6期22-25,共4页Industrial Instrumentation & Automation

基　　金：四川省科技支撑计划项目(2011GZ005);西北民族大学中央高校基本科研业务费专项资金资助项目(ZYZ2012058)

摘　　要：介绍了一种改进了的基于多维标度的迭代定位算法(MDS),该算法把参考节点的质心坐标设置为迭代初始值。分析了该算法存在的缺点,提出一种平滑优化算法。仿真结果表明:平滑后的MDS迭代定位算法,迭代次数大大减少,定位精度显著提高。在同样的定位精度下,平滑后的算法需要的锚节点数明显减少。算法具有实际应用价值。An improvement iterative localization algorithm based on MDS is introduced, which setted the centroid of the anchor nodes as the initial value for iterating in the algorithm. An smooth optimization algorithm is proposed by analysing the disadvantage of that algorithm. Simulation result shows that this algorithm need less iterative times, but has higher precision. With same localization precision, anchor nodes are reduced obviously in smooth algorithm, having actual application value.

关 键 词：无线传感器网络 节点定位 多维标度 平滑优化 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]