基于跳数的传感器网络节点定位改进算法

Hop-based improved localization algorithm for wireless sensor networks

提出一种基于跳数的无线传感器网络节点定位改进算法,用以更准确获取在无线传感器网络监视区域内目标节点的位置。算法精确估算网络中节点间的平均每跳距离,解决了经典定位算法中校正值不准确的问题,同时,算法在估算节点位置时,优化选取定位的参考节点。实验结果表明,改进算法提高了网络中节点定位精度,有助于推动无线传感器网络的应用。

An improved hop-based localization algorithm was proposed to accurately obtain the position of object node in the monitor area of wireless sensor networks.The algorithm estimated the average one hop distance among sensor nodes precisely.The problem was solved that correction value is inaccuracy in the classical algorithm.Moreover,the reference node selection was optimized to calculate the position of sensor node.The experimental result indicated our improved algorithm increased the localization accuracy efficiently,which contributes to promote the application of wireless sensor networks.