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Anti-Collision Protocol with Stop Signal in RFID Systems  

Lim In-Taek (부산외국어대학교 컴퓨터공학부)
Choi Jin-Oh (부산외국어대학교 컴퓨터공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.10, no.4, 2006 , pp. 638-644 More about this Journal
Abstract
In this paper, a QT_ss protocol is proposed for identifying all the tags within the identification range. The proposed QT_ss protocol revises the QT protocol, which has a memoryless property. In the QT_ss protocol, the tag will send all the bits of their identification codes when the query string matches the first bits of their identification codes. While the tags are sending their identification codes, if the reader detects a collision bit, it will send a signal to the tags to stop sending. According to the simulation results, the QT_ss protocol outperforms the QT protocol in terms of the number of response bits.
Keywords
RFID; Anti-collision algorithm; QT protocol;
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