DiCa: Distributed tag access with collision-avoidance among mobile RFID readers

Kwang Il Hwang, Kyung Tae Kim, Doo Seop Eom

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)


Advances in wireless and mobile communication technologies have enabled the development of various RFID-based systems and applications in addition to the extension of the tag reading range of mobile readers. Thus, it has become commonplace that multiple readers concurrently attempt to read tags within ranges of the readers. However, this concurrent access among multiple mobile readers brings about a new problem called reader collision, where a reader's transmission is interfered by other readers. There have been several studies focusing on solving the reader collision problem. These studies employ time division, frequency division, space division, or the centralized scheduling approach. In this paper, a cooperative, distributed reader collision avoidance algorithm is introduced. In particular, the proposed DiCa (Distributed Tag Access with Collision-Avoidance) is considerably suitable for energy-efficient wireless mobile network environments cooperated with RFID, since the DiCa is capable not only of avoiding collisions, but also changing power states autonomously through simple interaction of adjacent readers.

Original languageEnglish
Title of host publicationEmerging Directions in Embedded and Ubiquitous Computing - EUC 2006 Workshops
Subtitle of host publicationNCUS, SecUbiq, USN, TRUST, ESO, and MSA, Proceedings
EditorsXiaobo Zhou, Oleg Sokolsky, Lu Yan, Lu Yan, Eun-Sun Jung, Zili Shao, Yi Mu, Dong-Chun Lee, Daeyoung Kim, Young-Sik Jeong, Cheng-Zhong Xu
PublisherSpringer Verlag
Number of pages10
ISBN (Print)3540368507, 9783540368502
Publication statusPublished - 2006
EventEUC 2006: Embedded and Ubiquitous Computing Workshops - Seoul, Korea, Republic of
Duration: 2006 Aug 12006 Aug 4

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4097 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


OtherEUC 2006: Embedded and Ubiquitous Computing Workshops
Country/TerritoryKorea, Republic of

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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