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Energy efficient in-network RFID data filtering scheme in wireless sensor networks

Bashir, AK and Lim, SJ and Hussain, CS and Park, MS (2011) Energy efficient in-network RFID data filtering scheme in wireless sensor networks. Sensors, 11 (7). pp. 7004-7021. ISSN 1424-8220

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Abstract

RFID (Radio frequency identification) and wireless sensor networks are backbone technologies for pervasive environments. In integration of RFID and WSN, RFID data uses WSN protocols for multi-hop communications. Energy is a critical issue in WSNs; however, RFID data contains a lot of duplication. These duplications can be eliminated at the base station, but unnecessary transmissions of duplicate data within the network still occurs, which consumes nodes' energy and affects network lifetime. In this paper, we propose an in-network RFID data filtering scheme that efficiently eliminates the duplicate data. For this we use a clustering mechanism where cluster heads eliminate duplicate data and forward filtered data towards the base station. Simulation results prove that our approach saves considerable amounts of energy in terms of communication and computational cost, compared to existing filtering schemes. © 2011 by the authors; licensee MDPI, Basel, Switzerland.

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