[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7471/ikeee.2021.25.1.32

Collided Tag Signals' Periodic Characteristic based RFID Tag Collision Detection Method

Yang, Wan-Seung (Dept. of Electronic and IT Media Eng., Seoul National University of Science and Technology)
Park, Hyung-Chul (Dept. of Electronic and IT Media Eng., Seoul National University of Science and Technology)

Publication Information

Journal of IKEEE / v.25, no.1, 2021 , pp. 32-36 More about this Journal

Abstract

This paper presents a novel collided tag signals's periodic characteristic based radio frequency identification (RFID) tag collision detection method for the ultra high frequency (UHF) RFID. The proposed method utilizes that periodicity of tag signals is maintained even under tag collision. In the proposed method, the correlation between received signal and reference edge signal is used. Simulation result shows that the detection performance using the proposed method is about 10 dB better than that of existing method. In addition, the detection performances with different magnitude difference, phase difference, delay, number of tags are analyzed.

Keywords

UHF; RFID; Tag collision; Periodicity; EPC;

Citations & Related Records

Reference

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