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http://dx.doi.org/10.6109/jkiice.2013.17.2.481

Bit Synchronization Using Violation Bit Detection in 13.56MHz RFID PJM Tag  

Youn, Jae-Hyuk (광운대학교)
Yang, Hoon-Gee (광운대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.17, no.2, 2013 , pp. 481-487 More about this Journal
Abstract
To successfully accomplish a bit synchronization, a synchronizer should exploit a preamble pattern. A MFM (modified frequency modulation) flag is uses as a preamble in a PJM (phase jitter modulation) mode RFID standard. In the recent work, a synchronizer for a PJM mode tag was proposed, which is composed of several correlators. In this paper, we present a new bit synchronizer in which a coarse synchronization is done as in the previous work while a fine synchronization is performed via exploiting a violation bit included in the MFM flag. We show that the proposed synchronizer can significantly reduce the overall hardware complexity at the expense of slight burden to a demodulator structure. Through simulation, we also show that its performance is comparable to that of the previous system despite its hardware simplicity.
Keywords
RFID; PJM mode; PJM tag; bit synchronization; violation bit;
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Times Cited By KSCI : 1  (Citation Analysis)
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