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Fitted dynamic framed slotted ALOHA anti-collision algorithm in RFID systems

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3 Author(s)
Shakiba, M. ; Ind. Comput. Group, Univ. Kebangsaan Malaysia, Bangi, Malaysia ; Zavvari, A. ; Sundararajan, E.

Radio Frequency Identification (RFID) system is a new communication technology to identify the objects using electromagnetic waves. The main superiority of RFID systems in comparison with other identification systems, such as barcodes, is its ability in simultaneous identification process, but when more than one tag wants to communicate with the reader, collision problem occurs and wastes time and increases energy consumption. This reduces efficiency of the identification process in RFID systems. Collision problem happens when the reader has to identify more than one tag at the same time. Consequently, it is essential to develop an efficient anti-collision algorithm to save the time and energy and increase the performance of the system. In this paper, after investigating the previous works on ALOHA-based anti-collision algorithms, a new anti-collision algorithm is presented to improve the DFSA ALOHA-based anti-collision algorithms. Evaluation of the ALOHA-based algorithms and simulation of the results illustrate that presented work recognizes the tags more efficiently by reducing the number of time slots.

Published in:

Information Technology and Multimedia (ICIM), 2011 International Conference on

Date of Conference:

14-16 Nov. 2011

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