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1 GIPSA-CICS - CICS GIPSA-DIS - Département Images et Signal 2 LAUM - Laboratoire d-acoustique de l-université du Maine 3 6-COM - Systèmes de Communications

Abstract : This paper is concerned with localization in wireless sensor networks WSNs. We propose a novel localization algorithm based beamforming. The performed localization algorithm is adopted for a typical communication model in WSNs involving two clusters of sensors at both transmitter and receiver sides of the communication link. The set of collaborative sensor nodes located at the transmit cluster could be assimilated to a distributed Multiple Input Multiple Output MIMO system 1, 2, 3. We tackle the task of estimating the position of randomly distributed sensor nodes and we present a novel algorithm based on the beamforming approach 4, 5 and the received signal strength SS measurement. The correct operation of the proposed algorithm has been proved by simulation. The collected results for the sampling deviation of the estimator and the estimator variance are envisaged in order to evaluate the accuracy of the proposed algorithm.

Keywords : Beamforming Collaborative sensors Localization Signal Strength Wireless Sensor Networks

Autor: Maha Ben Zid - Kosai Raoof - Ammar Bouallegue -



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