摘要： 针对三维空间中未知节点的定位问题，提出基于四面体模型的三维加权质心定位算法。利用锚节点组成四面体，依据未知节点与锚节点间的距离大小，采取加权求和定位未知节点，利用接收信号强度指示器的数据信息对加权系数进行修正。仿真结果表明，该算法的定位精度较高。
关键词:
无线传感器网络,
三维加权质心,
四面体模型,
接收信号强度指示器
Abstract: In order to solve the problem of locating unknown nodes in three-dimensional space, this paper proposes a three-dimensional weighed centroid localization algorithm based on tetrahedral model. The tetrahedron consists of four anchor nodes. The unknown nodes are located according to the distances between unknown nodes and anchor nodes, which are weighted sum. It uses the data information of Received Signal Strength Indicator(RSSI) to revise weighting factor. Simulation results show that the localization accuracy of the algorithm is high.
Key words:
Wireless Sensor Network(WSN),
three-dimensional weighted centroid,
tetrahedral model,
Received Signal Strength Indicator(RSSI)
中图分类号:
王帅, 于劲松, 梁沛, 田学稳. 基于四面体模型的三维加权质心定位算法[J]. 计算机工程, 2012, 38(9): 90-92.
WANG Shuai, XU Jin-Song, LIANG Pei, TIAN Hua-Wen. Three-dimensional Weighed Centroid Localization Algorithm Based on Tetrahedral Model[J]. Computer Engineering, 2012, 38(9): 90-92.