期刊论文

中文

计算机工程与应用

1002-8331

2009

45

13

100-102,110

10.3778/j.issn.1002-8331.2009.13.030

湖南省交通厅课题（No.200724） 湖南城市学院课题（No.XCGJ200722）.

本校为其他机构

位置信息对于无线传感器网络中的事件监测必不可少,考虑到传感器网络中节点能量和资源受限的特性,针对现有定位方法的不足,提出距离无关的ARDV-hop算法,通过夹角修正方式以提高定位精度.该方法先基于传统Dv-hop算法获取平均每跳距离,然后逐一选取锚节点间通信线路中部的节点,通过该节点与两端锚节点的夹角来修正平均每跳距离,从而提高全网节点定位的准确性.仿真实验结果表明夹角的修正方式对于提高定位精度十分有效,即使在网络中节点分布不均匀的情况下仍能准确定位.

Localization information is necessary and important for the event monitoring in Wireless Sensor Networks.Analysis of existing localization techniques,aiming at the characteristics of energy limited and resource constrained WSNs,a novel localization method,Angle-Refined DV-hop（ARDV-hop） is proposed.The method improves the precision of range-free localization using angle refined method.It estimates the average hop distance by traditional DV-hop,and then selects the middle node between every two anchor nodes one by one.The obtained hop distance ...