基于分簇多节点协作规划的无线传感器网络定位算法  

Data Collection Protocols of Multi-Node Cooperative Planning in Wireless Sensor Networks

作　　者：陈画[1] 

机构地区：[1]浙江长征职业技术学院计算机与信息技术系,杭州310023

出　　处：《计算机系统应用》2014年第9期158-161,共4页Computer Systems & Applications

摘　　要：为了提升无线传感器网络的定位精度,减少网络在进行定位运算时节点能量消耗过大等问题,提出一种基于分簇的多节点协作规划的无线传感器网络定位算法,该算法先通过将网络形成多个分簇,计算簇内节点间的相对距离,再通过协作规划的方法来提升节点坐标定位的准确度.得到簇内节点相对簇头的位置坐标后,再求出簇头相对于汇聚节点的位置坐标,从而实现在网络中对任意节点的精确定位.实验仿真结果表明,与基于加权质心和参考节点序列的定位算法相比,基于分簇的多节点协作规划的定位算法可以得到更好的定位精度.In order to improve the positioning accuracy of wireless sensor networks, reducing network node energy consumption during positioning operation, a clustering-based wireless sensor network localization algorithm of multi-node Collaborative planning is proposed. The algorithm first made the network to be multiple clusters, then it calculated the relative distance between cluster nodes, to improve the accuracy of the positioning coordinates of nodes through collaborative planning approach. After getting the position coordinates of the node relative cluster head within the cluster, then it calculated position coordinates of the cluster head relative to the sink node, in order to achieve precise positioning of any node in the network. Simulation results show that the positioning algorithm of the weighted centroid-based and the reference node sequence, a clustering-based localization algorithm of multi-node Collaborative planning can get better positioning accuracy.

关 键 词：无线传感器网络 定位算法 网络分簇 协作规划 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]