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평균 처리율을 고려한 RFID 시스템의 하이브리드 충돌 방지 기법

Hybrid anti-collision method for RFID System with the consideration of the average throughput

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초록

Slotted-ALOHA and Binary-tree method are researched for the anti-collision for RFID system. However, it is required of the rapid recognition time for all tags and the reduction of the system complexity. In this paper. the hybrid anti-collision method is proposed to solve the problems. The RFID reader with the hybrid anti-collision method groups the tags with the number which makes the maximum system throughput, then it reads each group by slotted-ALOHA method. By the computer simulation results, it is found that the hybrid method improves the tag identification time and the system throughput together with the comparison to other anti-collision methods. Therefore, the proposed hybrid anti-collision method will enhance the RFID system performance.

Abstract

Slotted-ALOHA and Binary-tree method are researched for the anti-collision for RFID system. However, it is required of the rapid recognition time for all tags and the reduction of the system complexity. In this paper. the hybrid anti-collision method is proposed to solve the problems. The RFID reader with the hybrid anti-collision method groups the tags with the number which makes the maximum system throughput, then it reads each group by slotted-ALOHA method. By the computer simulation results, it is found that the hybrid method improves the tag identification time and the system throughput together with the comparison to other anti-collision methods. Therefore, the proposed hybrid anti-collision method will enhance the RFID system performance.

참고문헌 (14)

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  6. 차재룡, "RFID 시스템에서의 태그 수를 추정하는 ALOHA 방식 Anti-collision 알고리즘", 한국통신학회논문지, 30(9A), pp.814~821 (2005), 한국통신학회
  7. 이지봉, "ALOHA 방식 RFID 시스템에서의 태그 개수 추정 방법", 한국통신학회논문지B, 32(7B), pp.448~454 (2007), 한국통신학회
  8. 권성호, "슬롯 알로하 기반 RFID 시스템에서의 태그개수 추정 기법", 한국통신학회 추계종합학술발표회, pp.283~ (2005)
  9. 권대근, "900MHz RFID 표준 프로토콜(ISO", IEC 18000-6 type B)에서의 충돌방지 성능 개선, 2006, pp.31(5C), 540~547[DOI]
  10. 이정근, "다중 패킷 수신을 이용한 RFID 충돌방지 알고리즘의 성능 향상", 한국통신학회논문지, 31(11A), pp.1130~1137 (2006), 한국통신학회
  11. P.MATHYS, "Q-ary Collision Resolution Algorithms in Random-Access Systems with Free or Blocked Channel Access", IEEE Trans.Inform.Theory (1985)
  12. H. Vogt, "Efficient Object Identification with Passive RFID Tags", Proc. Int. Confer. on Pervasive Computing, pp.98~113 (2002), Springer-Verlag
  13. H. Vogt, "Multiple Object Identification with Passive RFID Tags", 2002 IEEE International Conference on System, Man and Cybernetics (2002)
  14. 김정곤, "UHF 대역 RFID 시스템의 충돌방지 기술 동향", 한국통신학회 논문지, 23(12) (2006)

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