Title :
Improving methods for wileless node locating calculation
Author :
Yang, Xianhui ; Lv, Rui
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
The paper focuses on improving node localization accuracy for wireless sensor networks. This article describes distance-based node localization algorithm and analyzes limitations of basic algorithm. Reference anchor node and their choice principle are put forward. Improving methods to advance localization accuracy are proposed. The paper tries to locate the node position with weighted least square estimation and robust least square estimation to make wireless node localization more accurate. Appropriate criterion function is selected to withstand coarse errors. The results of the simulation prove the effectiveness of these methods.
Keywords :
least mean squares methods; wireless sensor networks; distance-based node localization algorithm; least square estimation; reference anchor node; wireless node localization; wireless sensor networks; Algorithm design and analysis; Automation; Biomedical monitoring; Computational modeling; Computer networks; Least squares approximation; Military computing; Robustness; Wireless communication; Wireless sensor networks; coarse errors; distance-based node localization; reference anchor node; robust least square estimation; weighted least square estimation;
Conference_Titel :
Networking, Sensing and Control (ICNSC), 2010 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-6450-0
DOI :
10.1109/ICNSC.2010.5461568
