无线传感器网络增强的质心定位算法及性能分析  

The Performance Analysis of Advanced Centroid Localization Algorithm for Wireless Sensor Network

作　　者：李兆斌[1] 魏占祯[1] 徐凤麟[1] 

机构地区：[1]北京电子科技学院通信工程系,北京100070

出　　处：《传感技术学报》2009年第4期563-566,共4页Chinese Journal of Sensors and Actuators

基　　金：北京电子科技学院重点实验室基金项目资助(YZDJ0709)

摘　　要：节点定位是无线传感器网络应用的关键技术,本文在研究距离无关(rang-free)质心算法的基础上,针对质心算法在随机布置锚节点时定位精度较差的缺陷,提出了一种新的算法,即增强的质心定位算法(简称为ACLA)。ACLA计算简单,定位过程中节点间通信开销小,并具有一定的自适应性。仿真结果表明,ACLA算法的定位精度明显优于一般的质心定位算法。Localization of nodes is a key technology for application of wireless sensor network. By analyzing the model of the range-free Centroid Localization Algorithm （CLA）, this paper presents a new localization algorithm, which can be called Advanced Centroid Localization Algorithm （ACLA）. ACLA can deal with the localization precision disadvantage of CLA when the anchor-nodes are placed randomly. The calculation of ACLA is sample, ACLA has less communication overhead. The simulation results indicate that the ACLA has an obvious improvement in localization precision than CLA.

关 键 词：无线传感器网络 节点定位 质心算法 距离无关算法 

分 类 号：TN915.01[电子电信—通信与信息系统]