Journal of information and communication convergence engineering

  • 제8권3호
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  • Pages.307-311
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  • 2010
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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Adaptive Q-Algorithm for Multiple Tag Identification in EPCglobal Gen-2 RFID System

  • Lim, In-Taek (Department of Embedded IT, Pusan University of Foreign Studies)
  • 투고 : 2010.05.11
  • 심사 : 2010.05.27
  • 발행 : 2010.06.30
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초록

EPCglobal Class-1 Gen-2 protocol has been proposed for UHF-band RFID systems. In Gen-2 standard, Q-algorithm was proposed to select a frame size for the next query round without estimating the number of tags. Therefore, the Q-algorithm has advantage that the reader's algorithm is simpler than other algorithms. However, it is impossible to allocate the optimized frame size. Also, the original Q-algorithm did not define an optimized parameter C for adjusting the frame size. In this paper, we propose an adaptive Q-algorithm with the different parameter $C_c$ and $C_i$ in accordance with the status of reply slot. Simulation results show that the proposed adaptive Q-algorithm outperforms the original Gen-2 Q-algorithm.

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참고문헌

  1. M. A. Bonucelli, F. Lonetti, and F. Martelli, "Instant Collision Resolution for Tag Identification in RFID networks," Ad Hoc Networks, vol.5, pp.1120-1232, 2007.
  2. K. Finkenzeller, RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification, Carl Hanser Verlag GmbH & Co., 2002.
  3. EPCglobal, "EPC Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocols for Communication at 860MHz-960MHz, Ver.1.2.0," EPCglobal Inc., Oct. 2008.
  4. ISO/IEC, "Information Technology – Radio Frequency Identification for Item Management – Part 6: Parameters for Air Interface Communication at 860-960 MHz, 19000-6," ISO/IEC, 2006.
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  6. B. Zhen, M. Kobayashi, and M. Shimizu, "Framed ALOHA for Multiple RFID Objects Identification," IEICE Trans. Commun., vol.E88-B, no.3, pp.991-999, Mar. 2005. https://doi.org/10.1093/ietcom/e88-b.3.991
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  8. C. Wang, M. Daneshmand, and K. Sohraby, "Optimization of Tag Reading Performance in Generation-2 RFID Protocol," Computer Commun., vol.32, Issue 11, pp.1346-1352, July 2009. https://doi.org/10.1016/j.comcom.2009.02.004