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Sensors 2018, 18(4), 1185; https://doi.org/10.3390/s18041185

Improving Efficiency of Passive RFID Tag Anti-Collision Protocol Using Dynamic Frame Adjustment and Optimal Splitting

1
Faculty of Information Technology & Beijing Engineering Research Center for IoT Software and Systems, Beijing University of Technology, Beijing 100124, China
2
Institute of Information & Communication Technology, Mehran University of Engineering & Technology, Jamshoro 76062, Pakistan
3
School of Economics and Management, Beijing University of Technology, Beijing 100124, China
*
Author to whom correspondence should be addressed.
Received: 27 January 2018 / Revised: 5 March 2018 / Accepted: 14 March 2018 / Published: 12 April 2018
(This article belongs to the Special Issue RFID-Based Sensors for IoT Applications)
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Abstract

Radio frequency identification is a wireless communication technology, which enables data gathering and identifies recognition from any tagged object. The number of collisions produced during wireless communication would lead to a variety of problems including unwanted number of iterations and reader-induced idle slots, computational complexity in terms of estimation as well as recognition of the number of tags. In this work, dynamic frame adjustment and optimal splitting are employed together in the proposed algorithm. In the dynamic frame adjustment method, the length of frames is based on the quantity of tags to yield optimal efficiency. The optimal splitting method is conceived with smaller duration of idle slots using an optimal value for splitting level M o p t , where (M > 2), to vary slot sizes to get the minimal identification time for the idle slots. The application of the proposed algorithm offers the advantages of not going for the cumbersome estimation of the quantity of tags incurred and the size (number) of tags has no effect on its performance efficiency. Our experiment results show that using the proposed algorithm, the efficiency curve remains constant as the number of tags varies from 50 to 450, resulting in an overall theoretical gain in the efficiency of 0.032 compared to system efficiency of 0.441 and thus outperforming both dynamic binary tree slotted ALOHA (DBTSA) and binary splitting protocols. View Full-Text
Keywords: radio frequency identification; RFID anti-collision; RFID tags; radio transceiver; wireless sensor network; dynamic BTSA; optimal splitting radio frequency identification; RFID anti-collision; RFID tags; radio transceiver; wireless sensor network; dynamic BTSA; optimal splitting
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Memon, M.Q.; He, J.; Yasir, M.A.; Memon, A. Improving Efficiency of Passive RFID Tag Anti-Collision Protocol Using Dynamic Frame Adjustment and Optimal Splitting. Sensors 2018, 18, 1185.

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