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http://dx.doi.org/10.6109/jkiice.2017.21.4.731

Simplified Tag Collection Algorithm for Improving Performance of Active RFID System  

Lim, Intaek (Department of Embedded Software, Busan University of Foreign Studies)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.4, 2017 , pp. 731-736 More about this Journal
Abstract
In this paper, we propose a simplified tag collection algorithm to improve the performances of ISO/IEC 18000-7, which is a standard for an active RFID system. The proposed algorithm modifies the collection command that enables to start a tag collection round. The modified collection command includes the results of the listen period response for the previous collection round. Tags that receive the collection command check the collision status for their responses. If there is no collision, tags transmit their additional data and go into the sleep mode without the point-to-point read command and sleep command. A collection round for the standard consists of a collection command and response, a read command and response, and sleep command. On the other hand, in the proposed algorithm, a collection round consists of a collection command and response. The simulation results showed that the proposed algorithm can improve the identification delay about 16% compared with the standard when the number of tags are 300.
Keywords
Active RFID; ISO/IEC 18000-7; Tag collection algorithm; Anti-collision algorithm;
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