Improvement of Anti-Collision Performance for the ISO 18000-6 Type B RFID System

Dae-Ken KWON  Wan-Jin KIM  Hyoung-Nam KIM  

IEICE TRANSACTIONS on Communications   Vol.E90-B    No.8    pp.2120-2125
Publication Date: 2007/08/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.8.2120
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Terrestrial Radio Communications
anti-collision,  binary tree,  ISO 18000-6,  RFID,  tag identification,  

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This paper proposes a novel method to suppress tag collision in the ISO 18000-6 type B protocol which is one of the standard protocols of UHF RFID systems. The anti-collision performance in terms of the total identification time is improved by reducing the length of bits and the number of transmission commands required for multi-tag identification in the ISO 18000-6 type B protocol. Simulation results show that the proposed method improves the multi-tag identification time by about 15% over the conventional method, irrespective of the number of tags.