摘要
针对无线传感器网络在道路监控、管道传输等一维环境中的应用,提出了基于接收信号强度比值的一维定位算法1-DIM-RSSR(1Dimension Received Signal Strength Ratio)。该算法基于一维线性定位的思想,利用接收信号强度比值来确定未知节点的位置,只需要一次建立接收信号强度比值的数据库。实验结果表明,当环境改变时,与RSSI算法相比,1-DIM-RSSR算法定位精度高,在一维线性应用领域表现出了良好的灵活性和实用性。
In the application of wireless sensor networks for road surveillance and pipeline transmission,an algorithm based on 1 Dimension Received Signal Strength Ratio is presented.The algorithm is based on Received Signal Strength Indicator(RSSI) and linear location,and utilizes the ratios of signal strengths,instead of signal strength,to determine the locations of the unknown nodes.The algorithm only needs to establish the data set for ratio of the signal strengths once.Experiment results and comparisons with the RSSI algorithm show that the 1 Dimension Received Signal Strength Ratio(1-DIM-RSSR) can improve the location precision when the environments is changed,and the algorithm is well flexible and practical for linear applications.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第11期112-114,共3页
Computer Engineering and Applications
基金
中国博士后科学基金资助项目No.20070410381
陕西省教育厅科研项目No.08JK447
西北大学校内科学研究基金项目No.2005N35~~
关键词
无线传感器网络
一维环境
定位算法
接收信号强度比值
wireless sensor networks
one dimension environment
location algorithm
received signal strength ratio