An Interactive and Energy-efficient Node Localization Scheme for Wireless Sensor Networks

Authors:
Liang Xue;Bo Yang;Xinping Guan;Zhixin Liu
Affiliations:
School of Information and Electrical Engineering, Hebei University of Engineering, Handan, China 056038;School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China 200240 and Institute of Electrical Engineering, Yanshan University, Qinhuangdao, China ...;School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China 200240 and Institute of Electrical Engineering, Yanshan University, Qinhuangdao, China ...;Institute of Electrical Engineering, Yanshan University, Qinhuangdao, China 066004
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

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Abstract

How to obtain accurate position of sensor node is still a challenging problem for wireless sensor networks (WSNs). This work concentrates on the problem of node localization with mobile anchor node, which is applied to broadcast beacon packets in the region of interest (ROI). Node localization scheme SAA-ERL (speed adaptive adjustment-energy ratio localization) for WSNs is realized in way of interactive communications. SAA scheme determines the suitable moving speed and direction for the mobile anchor node, while the ERL mechanism generates virtual hyper-spheres to help unknown nodes acquire their locations. Based on the quantitative analysis of the localizing performances, the guidelines for system parameters are obtained. Simulation results validate that when system parameters are jointly designed, SAA-ERL can be adapted to scenarios of diversified applications.