A collision-tolerant based anti-collision algorithm for large scale RFID system

Su, Jian, Sheng, Zhengguo and Xie, Liangbo (2017) A collision-tolerant based anti-collision algorithm for large scale RFID system. IEEE Communications Letters. ISSN 1089-7798

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Abstract

Tag identification is an important issue in RFID system. Most existing anti-collision algorithms solely focus on reducing collision probability while suffering from vast idle slots. This paper proposes a collision-tolerant dynamic framed slotted Aloha (CE-DFSA) algorithm which attempts to identify multiple tags in a slot to reduce the total identification time in the process of identification. In CE-DFSA, tags are allocated with orthogonal Walsh Sequence (WS) so that multiple tags can be identified in a time slot without spreading the spectrum. Simulation results show that the proposed algorithm considerably accelerates the tag identification process with improved efficiency compared with existing anti-collision algorithms.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Research Centres and Groups: Sensor Technology Research Centre
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television
Depositing User: Zhengguo Sheng
Date Deposited: 20 Mar 2017 12:19
Last Modified: 16 May 2017 05:22
URI: http://sro.sussex.ac.uk/id/eprint/67136

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