无线传感器网络节点定位与漂移检测  

Node Localization and Drifted Node Detection for WSN

作　　者：毕烨[1] 陈丽娜[2] 苗春雨[3] 

机构地区：[1]吉林师范大学分院现代教育技术中心,吉林四平136000 [2]浙江师范大学数理与信息工程学院,浙江金华310023 [3]浙江师范大学网络空间安全一流学科,浙江金华310023

出　　处：《小型微型计算机系统》2018年第1期156-160,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61502431)资助;浙江省计算机科学与技术重中之重学科(浙江师范大学)基金项目(ZC323014074)资助;浙江省科技厅公益性技术应用研究计划基金项目(2015C33060)资助

摘　　要：节点定位是无线传感器网络(Wireless Sensor Networks,WSN)关键支撑技术之一,针对实际应用场景中节点漂移现象,提出了一种包含信标漂移检测和节点重定位的节点定位方法 RI-MDS.RI-MDS将基于测距的MDS和非测距的MDS方法进行整合完成节点定位,并通过比较相对坐标矩阵的差异进行漂移节点检测,并通过提升定位精度较高的普通节点为临时信标的方式解决节点重定位过程中可用信标不足的问题.RI-MDS将节点定位、漂移节点检测和节点重定位过程无缝结合.仿真实验表明RI-MDS具有较高的定位精度和漂移节点检测性能,具备有效性和实用性.Node localization is a pivot technic of WSN （ Wireless Sensor Networks ）. In order to solve the problem of drifted node inWSN, a localization scheme called RI-MDS including drifted node detection and node re-localization is proposed. RI-MDS combinesthe metric-MDS and Nonmetric-MDS algorithms to fulfill localization, and detects the drifted node by comparing the absolute coordi-nator matrix. Furthermore, a temporal anchor promotion method is used to address the problem of lack of available anchors for somecertain normal nodes. To sum up, RI-MDS integrated the localization,drifting detection and re-localization seamlessly. Experiment re-sults show that RI-MDS processes relative high localization accuracy and detection success rate, and it is effective and practicable.

关 键 词：无线传感器网络 信标漂移 漂移检测 节点重定位 

分 类 号：TF309[冶金工程—冶金机械及自动化]