无线传感器网络定位方法综述

Survey on localization algorithms for wireless sensor networks

介绍了国内外研究机构在无线传感器网络定位方法方面开展的研究工作,并对这些研究工作进行了归纳和总结.定位的基本方法分为距离式定位和非距离式定位.距离式定位是通过测量距离或角度进行位置估计,测量数据的精度对定位精度有很大影响.非距离式定位是通过节点间的hop数或估计距离计算节点的坐标,这种方法不需要测量距离或角度,利用估计距离代替真实距离,算法简单但精度不高.无线传感器网络中定位方法的应用需要针对不同的应用场合,综合考虑节点的规模、成本及系统对定位精度等要求来进行设计和选择.

Current researches in wireless sensor networks(WSNs′) localization algorithms are introduced,and these researches are analyzed and concluded.The precision of the nodes′ locations are important for the data′s effectiveness in WSNs′.The localization algorithms are divided into range-based and range-free.Range-based algorithms use the measured distance and angle to calculate the nodes′ coordinates.However,the range-free researches use hops or evaluated distance to localization,which are simple but low-precisio...