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Tag-to-Tag Interference Suppression Technique Based on Time Division for RFID.

Grishma Khadka1, Suk-Seung Hwang2

  • 1Department of Advanced Parts and Material Engineering, Chosun University, Gwangju 501-759, Korea. grishmakhadka@chosun.kr.

Sensors (Basel, Switzerland)
|January 4, 2017
PubMed
Summary

This study introduces a new anti-collision algorithm for Radio-frequency identification (RFID) systems to improve reliability in construction. The proposed time-division technique ensures efficient communication between multiple RFID tags and readers by assigning unique time slots.

Keywords:
RFIDinterference suppressionsignal-to-noise ratiotag-to-tag collisiontime division

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Area of Science:

  • Engineering
  • Computer Science
  • Construction Management

Background:

  • Radio-frequency identification (RFID) is a key technology for object identification and data sharing.
  • RFID is widely used in technical fields but faces challenges in construction due to tag interference.
  • Interference between multiple RFID tags reduces system reliability and efficiency on construction sites.

Purpose of the Study:

  • To propose an anti-collision algorithm for RFID systems operating in complex environments.
  • To enhance the reliability and efficiency of RFID communication in the construction industry.
  • To mitigate interference issues arising from multiple RFID tags in close proximity.

Main Methods:

  • Development of a novel anti-collision algorithm for RFID tag-reader communication.
  • Implementation of a time-division (TD) technique to manage simultaneous tag transmissions.
  • Assignment of specific time slots to individual tags within the reader's interrogation zone.

Main Results:

  • The proposed algorithm effectively suppresses interference signals from neighboring RFID tags.
  • Computer simulations demonstrate the algorithm's performance in managing multiple tag communications.
  • The time-division approach ensures orderly and reliable data exchange between tags and readers.

Conclusions:

  • The developed anti-collision algorithm significantly improves RFID system performance in multi-tag scenarios.
  • The time-division technique offers a viable solution for reliable RFID operation in construction environments.
  • This research contributes to more efficient material and equipment monitoring in construction projects.