전기전자학회논문지 (Journal of IKEEE)

  • 제13권3호
  • /
  • Pages.7-17
  • /
  • 2009
  • /
  • 1226-7244(pISSN)
  • /
  • 2288-243X(eISSN)
한국전기전자학회 (Institute of Korean Electrical and Electronics Engineers)
권호 표지

WiMedia 초고속 근거리 무선 통신에서의 결정적 접근 프로토콜

A Deterministic Access Protocol in WiMedia Wireless Personal Area Networks

  • 박현희 (고려대학교 전자컴퓨터공학부) ;
  • 백상헌 (고려대학교 전자컴퓨터공학부) ;
  • 김용선 (고려대학교 전자컴퓨터공학부) ;
  • 강철희 (고려대학교 전자컴퓨터공학부)
  • Park, Hyun-Hee (Department of Electronics and Computer Engineering, Korea University) ;
  • Pack, Sang-Heon (Department of Electronics and Computer Engineering, Korea University) ;
  • Kim, Yong-Sun (Department of Electronics and Computer Engineering, Korea University) ;
  • Kang, Chul-Hee (Department of Electronics and Computer Engineering, Korea University)
  • 발행 : 2009.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

WiMedia UWB 기술은 무선 PAN영역에서 무선 USB, 무선 디스플레이, 무선 KIOS 등과 같이 높은 데이터 전송 속도를 요구하는 응용을 위해 개발된 완전 분산형의 데이터 통신 기술로써 데이터 통신을 위해 DRP 구간에서 예약되지 않은 영역은 모든 장치들이 PCA(Prioritized Contention Access) 방식으로 경쟁하여 무선 매체를 점유한다. 보통 장치들은 DRP 구간을 미리 예약하여 경쟁 없이 데이터를 보낼 수 있지만, 제어 및 명령 프레임 전송이나 추가적인 데이터 프레임 전송 시에는 PCA 방식을 통해 예약되지 않은 DRP 구간에서 이러한 데이터를 전송하게 된다. 그러나 기존의 PCA 방식을 사용하게 되면 경쟁으로 인한 충돌 증가로 동일 비컨 그룹에 참여하는 장치 수가 증가할수록 전송 효율 저하를 겪게 된다. 따라서 본 논문에서는 비컨 구간에서의 비컨 전송 순서 정보와 각 장치가 DRP 예약 구간 외에 추가적으로 발생되는 큐 정보를 비컨을 통해 알려줌으로써 현재 남아 있는 비예약 DRP 구간에서 경쟁 없이 추가 발생 데이터를 전송할 수 있는 방식을 제안한다. 그리고 기준점(reference point)을 도입하여 비컨 슬롯 번호가 빠른 장치들에게 전송기회가 많이 주어지는 문제를 해결하였다.

WiMedia UWB technology is a fully distributed data communication technology developed for the application demanding a high data transmission rate in the wireless PAN area. In general, devices can send data either by reserving time slots or by using prioritized CSMA/CA. If the PCA protocol of prioritized CSMA/CA is used, they are suffered congestion as the number of devices increases. In this paper, we propose a Deterministic Access Protocol(DAP) in WiMedia WPANs. A DAP is a method to transmit data in the non-reserved DRP period without competition as each device informs the beacon order information in the beacon period and the queue information. In addition, the problem that the devices with a lower beacon slot number have more transmission opportunities is addressed by introducing the reference point. Simulation results are given to demonstrate that a DAP can improve the throughput and reduce the packet loss rate.

키워드

참고문헌

  1. J. Pavon, N. Shankar, V. Gaddam, K. Challapali, and C. Chou, "The MBOA-WiMedia specification for ultra wideband distributed networks," IEEE Communications Magazine, vol. 44, no. 6 pp. 128-134, Jun. 2006.
  2. X. Shen, W. Zhuang, H. Jiang, and J. Cai, “Medium access control in ultra-wideband wireless networks,” IEEE Trans. Vehicular Technology, vol. 54, no. 5, pp. 1663-1677, Sep. 2005. https://doi.org/10.1109/TVT.2005.853888
  3. High Rate Ultra Wideband PHY and MAC Standard, ECMA Int. ECMA-368, Dec. 2005. [Online]. Available: www.ecma-international. org/publications/standards/Ecma-368.htm
  4. Y. Xiao, X. Shen, and H. Jiang, “Optimal ACK Mechanisms of the IEEE 802.15.3 MAC for Ultra-Wideband Systems,” IEEE Journal on Selected Areas in Communications, vol. 24, no. 4, pp. 836-842, Apr. 2006. https://doi.org/10.1109/JSAC.2005.863862
  5. B. Lee, S. Rhee, W. Choi, K. Chung, J. Cho, and W. Cho, “Dynamic Acknowledgement for the Energy Efficiency of the High-Rate Wireless PAN,” in Proc. UbiCNS 2005, pp. 143-148, Jun. 2005.
  6. E. Kwon, K. Lee, and J. Lim, “Enhancement of IEEE 802.15.3 MAC via MAC Header Compression,” in Proc. IEEE IPCCC 2005, pp. 629-630, Apr. 2005.
  7. J. Kim, Y. Jeon, S. Lee, and S. Choi, “ECAP: An Enhancement of the IEEE 802.15.3 MAC via Novel Scheduling Scheme,” in Proc. IEEE VTC 2006, pp. 1313-1317, May 2006.
  8. J. I. Lee, S. H. Pack, and C. H. Kang, "Channel Adaptive ACK Mechanism in IEEE 802.15.3 Wireless Personal Area Networks," in Proc. ICOIN 2009, Jan. 2009.
  9. Q. Wu, Y. Xiong, H. Wu, Z. Guo, X.-G. Xia, Q. Zhang, and Z. Li, “Performance evaluation of the beacon period contraction algorithm in UWB MBOA MAC,” IEEE Communication Letter, vol. 9, no. 10, pp. 933-935, Oct. 2005. https://doi.org/10.1109/LCOMM.2005.10024
  10. V. M. Vishnevsky, A. I. Lyakhov, A. A. Safonov, S. S. Mo, and A. D. Gelman, “Study of Beaconing in Multihop Wireless PAN with Control,” IEEE Trans. on Mobile Computing, vol. 7, no. 1, pp. 113-126, Jan. 2008. https://doi.org/10.1109/TMC.2007.1078
  11. J. H. Kim, J. D. Huh, "Rate Adaptation Scheme for Slot Reservation in WiMedia MAC," in Proc. ICCE 2007, pp. 10-14, Jan. 2007.
  12. H. M. Shin, Y. S. Kim, S. H. Pack, C. H. Kang, "A Distributed Relay MAC Protocol in WiMedia Wireless Personal Area," in Proc. ISPA 2008, pp. 784-789, Dec. 2008.
  13. K. H. Liu, X. Shen, R. Zhang, and L. Cai, "Performance Analysis of Distributed Reservation Protocol for UWB-based WPAN," IEEE Trans. Vehicular Technology, to appear.
  14. K. H. Liu, X. Ling, X. S. Shen, and J. W. Mark, "Performance Analysis of Prioritized MAC in UWB WPAN With Bursty Multimedia Traffic," IEEE Trans. on Vehicular Technology, vol. 57, no. 4, pp. 2462-2473, Jul. 2008. https://doi.org/10.1109/TVT.2007.912139
  15. D. T. C. Wong, F. P. S. Chin, M. R. Shajan and Y. H. Chew, "Performance Analysis of Saturated Throughput of PCA in the Presence of Soft DRPs in WiMedia MAC," in Proc. VTC 2007, pp. 1275-1281, Apr. 2007.
  16. D. T. C. Wong, F. P. S. Chin, A. T. Hong and Y. C. Liang, "Saturated Throughput of PCA with Hard DRPs in Cognitive WiMedia MAC," in Proc. IEEE　VTC 2008, pp. 1579-1583, May 2008.