Locating schemes based on adaptive weighting strategy in heterogeneous wireless networks

Authors:
Sheng-Cheng Yeh;Wu-Hsiao Hsu
Affiliations:
Department of Computer and Communications Engineering, Ming Chuan University, Taoyuan 333, Taiwan;Department of Computer Science and Information Engineering, Ming Chuan University, Taoyuan 333, Taiwan
Venue:
International Journal of Ad Hoc and Ubiquitous Computing
Year:
2013

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Abstract

Global positioning system GPS is the most common technology providing location-based services. When a GPS receiver receives satellite signals, the distance between the satellite and the user is calculated, and then the users current position is located using the triangulation method. However, there is a possibility that landforms, shelters and the number of satellites can have an impact on the satellite signal. This paper combines different heterogeneous wireless networks i.e., WiFi and ZigBee networks to improve localisation accuracy, especially when GPS receivers cannot receive a signal. In addition, this paper further demonstrated that combining the WiFi and ZigBee localisation systems achieves almost the same precision as the GPS given without shelter.