Reducing reader collision for mobile RFID

Jieun Yu, Wonjun Lee, Ding Zhu Du

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Mobile RFID, the technology of a cellular phone equipped with a RFID reader, allows users to read RFID tags anywhere. However, signals from more than two readers can interfere with one another, i.e., reader collision problem; reliable tag reading is necessary. This paper proposes GENTLE protocol to use beacon messages and multi-channel for increasing throughput. GENTLE protocol can also put tag ID information into the beacon message and share it among close readers. In addition, we suggest LSWBT protocol that reduces reader collision without beacon messages. Simulation results show that GENTLE and LSWBT protocols outperform existing reader anti-collision protocols.

Original languageEnglish
Article number5955194
Pages (from-to)574-582
Number of pages9
JournalIEEE Transactions on Consumer Electronics
Issue number2
Publication statusPublished - 2011 May

Bibliographical note

Funding Information:
1 This research was jointly supported by MEST, Korea under WCU (R33-2008-000-10044-0), by the KRF Grant funded by (KRF-2008-314-D00354), and by MKE, Korea under ITRC NIPA-2010-(C1090-1021-0008). Jieun Yu and Wonjun Lee are with Network Research Lab., WCU Future Network Optimization Technology (FNOT) Research Center, the Department of Computer Science and Engineering, Korea University, Seoul, Korea. Ding-Zhu Du is with the Department of Computer Science, University of Texas at Dallas, TX, USA. *Wonjun Lee is the corresponding author (e-mail: wlee@


  • Mobile RFID
  • Reader Anti-Collision

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Reducing reader collision for mobile RFID'. Together they form a unique fingerprint.

Cite this