A Heuristic Method for Wireless Sensor Network Localization

Jun 30th, 2015
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American Jewish University
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The rapid development of wireless communications and technology growth in the field of electronics has facilitated the deployment of more capable sensor networks to control and manage our homes and cities intelligently. For this reason, we have observed more and more attention to this technology and the development of related applications in the recent years.

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ProcediaComputerScienceAvailable online at www.sciencedirect.comProcedia Computer Science 00 (2011) 000000Procedia Computer Science 5 (2011) 812819www.elsevier.com/locate/procediaInternational Symposium on Intelligent Systems Techniques for Ad hoc and WirelessSensor Networks (IST-AWSN 2011)A Heuristic Method for Wireless Sensor NetworkLocalizationMohamadreza Shahrokhzadeha,*, Abolfazl T. Haghighata, Fariborz Mahmoudiaand Behrooz ShahrokhzadehaaIslamic Azad University, Qazvin Branch, Daneshgah Street, Qazvin, IranAbstractRandom deployment of wireless sensors in the network environment and the need for determining sensors locationhas made the localization problem as a critical challenge in wireless sensor networks. One of the efficient approachesto solve this problem is the heuristic algorithm based on simulated annealing. Despite the advantages of such analgorithm, its major weakness is accuracy reduction in low density networks and the increase of the localizationprocessing time associated with the growth of the network density. This paper aims at providing a solution to increasethe efficiency of this algorithm. To this end, first we applied Iterative Multilateration method in a base station. Withthis idea the completely random initial estimation is replaced by an appropriate estimation location of sensor nodes,so while the prevention of localization error propagation in the whole network, the computation is decreasedconsiderably at the be

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