摘要
无线传感器网络中节点自定位一直是一个具有挑战性的研究课题。全球定位系统(GPS)是一种传统的定位技术,但是定位的准确性低且网络花费较大。通过分析现有的节点自定位算法,认为六边形节点自定位算法是比较优秀的非GPS算法,该算法基于蜂窝交叠的思想,节点仅使用简单的连接矩阵和信标帧中的定位数据就能自定位,且定位准确性高,最后提出了今后要做的工作。
Node self-localization is a challenging issue of Wireless Sensor Networks.GPS is a traditional localization technique but it has low position accuracy and high network costs.Many valuable algorithms have been brought forward during recent years.This paper summarizes the existing algorithms and concludes that Hexagonal positioning is a better GPS-less self-localization algorithm.Based on the idea of cell overlapping,sensor nodes only use simple connectivity metric and localization data in the beacon frame to calculate their locations.The accuracy of the algorithm is higher.At last the future work is put forward.
出处
《无线电通信技术》
2010年第2期43-45,共3页
Radio Communications Technology
