Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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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)
  • Received : 2020.11.16
  • Accepted : 2020.12.28
  • Published : 2021.03.31
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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.

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References

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