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http://dx.doi.org/10.6109/jkiice.2010.14.4.1005

A Study about Implementation Method of Multi-Interface Multi-Channel 2.4GHz Active RFID Reader Protocol  

Kim, Dong-Hyun (부산대학교 컴퓨터공학과)
Lee, Chae-Suk (부산대학교 컴퓨터공학과)
Kim, Jong-Doek (부산대학교 컴퓨터공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.14, no.4, 2010 , pp. 1005-1014 More about this Journal
Abstract
When reader collect tags, we found that they tend to get together to specific interface in Multi-Interface Multi-Channel 2.4GHz Active RFID system. To solve this problem, we designed the LP-Combind and AP-Balanced protocol for load distribution between interfaces, then verified its superiority of the performance through the simulation. There are three problems to implement designed protocols in hardware of firmware-level. first, tag selects randomly the channel of reader and reader need the method which can change the channel of tags. second, reader has the synchronization problem between reader and tag. third, reader has problem that MCU of reader have to operate simultaneously dual interface. To slove this problems, we designed the message and implemented method for tag channel change and the protocol in order to adjust synchronization between reader and tag, Therefore, we compared and analyzed the performance of protocols by experiment. If LP windows size is same, the performance of LP-Combined protocol and AP-Balanced protocol which lower collision probability by its load distribution is more outstanding than single interface protocol performance.
Keywords
2.4GHz Active RFID; Multi-Interface; Multi-Channel; Reader Protocol; Load-Balancing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 H. Vogt, "Efficient Object Identification with Passive RFID Tag," Proceedings of International Conference on Pervasive Computing, Zurich, Swiss, 2002.
2 Klaus Finkenzeller, RFID Handbook: Fundamentals and Applications in Contactles Smart Card Identification, 2nd edition, John Wiley & Sons, 2003.
3 박현성, 김동현, 정상화, 백윤주, 김종덕, "다중채널 다중 인터페이스 능동형 RFID 리더 및 프로토콜," 한국정보과학회논문지 제36권 제2호, pp. 118-129, 2009년 4월.   과학기술학회마을
4 ISO/lEC 18000.7.2, "Information technology AIDC techniques-Radio frequency identification for item management-Air interface, Part 7: Parameters for active air interface communications at 433MHz," 2008.
5 2.4GHz Active RFID Reader, 부산대학교 컴퓨터공학과 임베디드 네트워크시스템연구실, http://miranda.ce.pusan.ac.kr
6 박세영, 김택현, 최훈, 조현태, 백윤주, "저전력 2.4GHz 능동형 RFID 태그의 설계 및 구현," UCT 2008, p134-136, 2008년 7월