高精确度与高覆盖率的传感器网络定位算法  

Novel high accuracy and coverage localization algorithm for wireless sensor networks

作　　者：向满天[1] 史浩山[1] 李立宏[2] 龙承志[3] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]南昌大学软件学院,江西南昌330029 [3]南昌大学信息工程学院,江西南昌330029

出　　处：《通信学报》2008年第11期19-23,30,共6页Journal on Communications

基　　金：国家教育部博士点基金资助项目(20050699037);江西省教育厅重点科技研究基金资助项目(赣教技字[2007]29 号);江西省主要技术带头人基金资助项目(070002);江西省科技厅科技支撑计划基金资助项目(2007ZD03700)~~

摘　　要：为了对无线传感器网络中随机分布的节点实施有效定位,针对典型Bounding Box算法的定位准确性与覆盖率较低的不足,提出了一种基于三跳通信环带概念的定位算法C3HR(concen trictriple-hop of node communication range)。理论分析及仿真结果均表明,该算法优化了对待测节点位置的约束,对于锚节点分布稀疏和不均匀的网络,显著提高了定位的准确性及覆盖率,并能够有效降低节点能耗。In order to achieve the geographic positions of random nodes in wireless sensor networks more efficiently and aiming at the defect that poor accuracy and coverage of traditional bounding box approach, a new localization algorithm was proposed based on concentric triple-hop of node communication range. The result of simulation and analysis shows that the proposed algorithm can optimize the constraints on nodes＇ positions prominently, increase the estimation accuracy and localization coverage significantly with sparse and non-uniform anchor distribution, decrease the energy consumption of sensor nodes accordingly.

关 键 词：无线传感器网络 节点定位 三跳环带 位置约束优化 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]