传感技术学报Issue(11)：1539-1544,6.DOI:10.3969/j.issn.1004-1699.2014.11.018
基于节点密度及路径优化的无线传感器网络定位算法研究
Localization Algorithm Based on Node Density and Path Optimization for Wireless Sensor Networks
摘要
Abstract
Range-Free localization algorithm for wireless sensor network commonly used connectivity information or hop-count to estimate the distance which does not reflect the actual value between nodes within the range of one hop. In addition,when the path with multi-hop has a larger turning,there will be a serious mistake to instead of the actual distance with the estimated value. In order to address this problem,we propose a new distance model called regulated path distance( RPD) by relating the density of the surrounding nodes to the estimated distance,at the same time optimizing the path to make the path more realistic to the real. Finally,the new model is applied to the DV-Hop algorithm to positioning. Simulation results show that the improved positioning algorithm compared with conventional DV-Hop,under the scenarios of different rates and different anchor node communication radius,the positioning error rate and stability are both better than traditional methods.关键词
无线传感网/定位/RPD/DV-Hop/路径优化Key words
wireless sensor network/localization algorithm/RPD/DV-Hop/path optimization分类
信息技术与安全科学引用本文复制引用
吴凡,彭力..基于节点密度及路径优化的无线传感器网络定位算法研究[J].传感技术学报,2014,(11):1539-1544,6.基金项目
江苏省产学研联合创新基金项目( BY2013015－33，BY2014024，BY2014023－362014，BY2014023－25) （ BY2013015－33，BY2014024，BY2014023－362014，BY2014023－25）
