一种基于改进Bounding Box的移动信标辅助节点定位算法  

An Improved Mobile Beacon Assisted Node Localization Algorithm Based on Bounding Box

作　　者：左丹[1] 肖胜[2] 雷新海 

机构地区：[1]海军装备部,北京100841 [2]海军工程大学电子工程学院,湖北武汉430033 [3]武汉市江岸区信息中心,湖北武汉430014

出　　处：《指挥控制与仿真》2012年第1期53-56,共4页Command Control & Simulation

基　　金：湖北省自然科学基金(2006ABA010);海军工程大学自然科学基金(HGDJJ015)

摘　　要：针对无线传感器网络的节点自定位问题,提出一种利用单个移动信标的定位算法。该方法在传统BoundingBox定位方法的基础上,结合信标的实际通信区域,提出"O-区域"和"S-区域"的概念,通过对新接收到的信标位置分类讨论,进一步缩小未知节点的可能区域。通过仿真比较,验证了该方法的性能优于质心定位法和BoundingBox定位法,同时定位精度与移动信标的通信半径大小有关。Aimming at the node localization problem in wireless sensor networks,an algorithm using a single mobile beacon is proposed.Based on the traditional Bounding-Box localization method,the actual communication area of the mobile beacon is considered and the concept of ＂O-area＂ and ＂S-area＂ are proposed in the algorithm.New location information from the mobile beacon is classified and the potential area of unknown node is reduced.Simulation results show that the proposed algorithm had better performance than the centroid method and Bounding-Box method,and its localization accuracy is related to the communicating radius of the mobile beacon.

关 键 词：无线传感器网络 节点定位 移动信标 通信不规则度 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]