An efficient bit-detecting protocol for continuous tag recognition in mobile RFID systems

Zhang, Lijuan, Xiang, Wei, and Tan, Xiaohu (2018) An efficient bit-detecting protocol for continuous tag recognition in mobile RFID systems. IEEE Transactions on Mobile Computing, 17 (3). pp. 503-516.

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In a mobile RFID system, a large number of tags move in and out of the system continuously, so that the reader has very limited time to recognize all the tags. As a result, the effective and efficient identification of tags in mobile environments is a more challenging problem compared to conventional static RFID systems. In this paper, we propose an efficient bit-detecting (EBD) protocol to accelerate the reading process of large-scale mobile RFID systems. In these systems, some previously recognized tags, i.e., known tags, may stay in the reader's reading range for two consecutive reading cycles, and some unknown tags may newly participate in the current reading cycle. In the proposed EBD protocol, a new bit monitoring method is proposed to detect the presence of known tags using a small number of slots, and to retrieve their IDs from the back-end database. Next, an M -ary bit-detecting tree recognition method is proposed to rapidly recognize unknown tags without generating any idle slots. This new protocol is shown to perform better than existing methods reported in the literature. Both theoretic and simulation results are present to demonstrate that the proposed protocol is superior to existing protocols in terms of lower time cost.

Item ID: 52420
Item Type: Article (Research - C1)
ISSN: 1558-0660
Keywords: RFID; tag anti-collision protocol; tag recognition; tag monitoring
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A version of this publication was included as Chapter 4 of the following PhD thesis: Zhang, Lijuan (2017) High efficient tag identification protocols for large-scale RFID systems. PhD thesis, James Cook University, which is available Open Access in ResearchOnline@JCU. Please see the Related URLs for access.

Funders: National Natural Science Foundation of China (NNSFC), China National 863 Project (CN), Major Frontier Project of Sichuan Province (MFPSP)
Projects and Grants: NNSFC grant 61628102, CN grant 2015AA01A710, MFPSP 2015JY0282
Date Deposited: 08 Feb 2018 00:30
FoR Codes: 40 ENGINEERING > 4009 Electronics, sensors and digital hardware > 400999 Electronics, sensors and digital hardware not elsewhere classified @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%
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