Authors: Songsheng Li; Xiaoying Kong; Kumbesan Sandrasegaran
Addresses: Centre for Real-Time Information Networks, University of Technology, Sydney 2007, Australia ' Centre for Real-Time Information Networks, University of Technology, Sydney 2007, Australia ' Centre for Real-Time Information Networks, University of Technology, Sydney 2007, Australia
Abstract: Localisation of sensors within wireless sensor networks (WSNs) with the help of mobile beacons (MB) has been shown to be effective. MB is flexible, movable and a powerful replacement for static beacons. The path of a MB within a field of interest is a determining factor of the success of an algorithm. In static paths, the path is determined a priori, often following a fixed pattern and potentially limited by the concrete terrain of the field. Conversely a dynamic path, which is based on the demand of sensors in the field in a real time, is more flexible and applicable in practice. In this paper, a localisation algorithm that is based on a MB dynamic path is proposed which avoids typical complications and heavy computations to save energy in sensors. Simulation results show that the algorithm can settle sensors within a short walking distance of autonomous MB.
Keywords: WSNs; wireless sensor networks; sensor localisation; mobile beacons; dynamic paths; simulation; wireless networks.
International Journal of Sensor Networks, 2014 Vol.15 No.2, pp.130 - 141
Received: 11 Nov 2012
Accepted: 09 Jun 2013
Published online: 27 Apr 2014 *