WSN中基于虚拟锚节点的AD定位算法研究

确定事件发生的位置是无线传感器网络最基本的功能之一,对WSN应用的有效性起着关键性作用。提出了一种基于虚拟锚节点的主动分布式定位算法,该算法可以使待定位节点主动发送定位请求给虚拟锚节点,周期性地接收定位信标,并分布在各个节点上执行定位算法,从而得到节点的预估位置。实验表明,本算法可以有效地提高待定位节点的定位精度和减少残余待定位节点数量。

Research on Active Distributed Localization Algorithm Based on Virtual Beacons in WSN

Determining the location of the incident in WSN（wireless sensor network） is one of the most basic functions,the effectiveness of the WSN applications plays a key role.This paper presents that this algorithm can locate the node to be active to send a positioning request to the virtual beacons,periodically receive locator beacons,and distribute all nodes in the implementation of location algorithm to obtain estimated location of the node.Experiments show that the algorithm can effectively improve the positioning accuracy by positioning the nodes and reducing the number of nodes remaining to be positioning.