WSN定位算法中信标节点的摆放与选择  

Placement and Selection Algorithm of Beacon Nodes in WSN Localization

作　　者：樊爱京[1] 朱小艳[2] 郭拯危[2] 李辉[2] 

机构地区：[1]平顶山学院,河南平顶山467000 [2]河南大学,河南开封475004

出　　处：《河南大学学报（自然科学版）》2012年第4期416-419,共4页Journal of Henan University:Natural Science

基　　金：河南省科技攻关重点资助项目(122102210053)

摘　　要：目前已有的无线传感器网络节点自定位算法研究中,针对信标节点的研究较少,而如何选择信标节点,以及信标节点如何摆放,都对定位精度有比较大的影响.为了定量地研究这个问题,首先证明了信标节点摆放方法与节点是否能被定位之间的关系的一个定理,然后给出三维空间中信标节点的摆放方法,最后提出一种基于线性方程组的条件数的信标节点选择算法,以便尽可能地提高基于测距的未知节点自定位精度.Currently, few studies of wireless sensor network node localization algorithm were focused on the beacon nodes, but how to choose and place the beacon nodes has a large impact on the positioning accuracy. In order to quantitatively study this issue, a theorem was proved that offers a desiription of the relationship between the placement of beacon nodes and whether the unknown node could be located, then the beacon nodes placement method was designed. Finally, a beacon nodes selection algorithm was proposed based on the condition number of linear equations, so as to improve the accuracy of range-based localization algorithm.

关 键 词：WSN 定位 三维 信标节点摆放 信标节点选择 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]