Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Dynamic FSA Algorithm for Fast Tag Identification in RFID Systems

RFID 시스템에서 고속 태그 식별을 위한 동적 FSA 알고리즘

  • 임인택 (부산외국어대학교 컴퓨터공학부) ;
  • 최진오 (부산외국어대학교 컴퓨터공학부)
  • Published : 2006.05.01

Abstract

In RFID system, when multiple tags respond simultaneously, a collision can occur. A method that solves this collision is referred to as anti-collision algorithm. Among the existing anti-collision algorithms, SFSA, though simple, has a disadvantage that when the number of tags is variable, the system performance degrades because of the fixed frame size. This paper proposes a new anti-collision algorithm called DFSA which determines the optimal frame size using the number of collided slots at every frame. According to the simulation results, the tag identification time of the proposed algorithm is faster than that of SFSA.

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