대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

블록호핑 SC-FDMA 시스템을 위한 순환지연 다이버시티의 지연값 결정

Delay Determination for Cyclic Delay Diversity for Block-Hopping SC-FDMA Systems

  • 임민중 (동국대학교 정보통신공학과)
  • Rim, Min-Joong (Department of Information and Communications Engineering, Dongguk University)
  • 발행 : 2009.01.25
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⟨ 이전 논문 다음 논문 ⟩

초록

OFDMA 시스템에서는 순환지연 다이버시티는 다이버시티 효과에 의해서 시스템 성능을 증대시킨다. 그러나 블록호핑 SC-FDMA 시스템에서 순환지연 다이버시티의 적용은 다이버시티 효과에 의한 성능 증대효과와, 채널이 주파수 선택적이 됨으로-인한 성능의 감소효과가 동시에 발생한다. 따라서 시스템 성능을 최대화하기 위해서는 순환지연 다이버시티의 지연간을 적절히 선택하는 것이 필요하다. 이 논문에서는 이 두 가지 상반되는 효과와 블록호핑 SC-FDMA 시스템에서 순환지연 다이버시티를 적용할 때 순환지연값을 결정하는 방법에 대해 논의한다.

In OFDMA systems, cyclic delay diversity can improve the system performance due to diversity effects. However, applying cyclic delay diversity to block-hopping SC-FDMA systems can affect the performance in two contrary ways: positive effect due to increased frequency diversity and negative effect caused by increased frequency selectivity. Hence, the delay value for cyclic delay diversity should be carefully selected to maximize the system performance. This paper discusses these two contrary effects and proposes a method of determining the delay value of cyclic delay diversity for block-hopping SC-FDMA systems.

키워드

참고문헌

  1. Z. Wang, G. B. Giannakis, "Wireless Multicarrier Communications," IEEE Signal Processing Magazine, Vol.17, No.3, pp.29-48, May 2000 https://doi.org/10.1109/79.841722
  2. H. Witschnig, T. Mayer, A. Springer, A. Koppler, "A Different Look on Cyclic Prefix for SC/FDE," PIMRC, pp.824-828, September 2002
  3. H. Witschnig, G. Ossberger, A. Springer, A. Koppler, L. Maurer, M. Huemer, R. Weigel, "The Effect of Blockwise Transmission on Higher-Order Modulation Schemes for SC/FDE," International Symposium on Wireless Personal Multimedia Communications, pp.27-30, October 2002
  4. N. Al-Dhahir, "Single-Carrier Frequency-Domain Equalization for Space-Time Block-Coded Transmissions over Frequency-Selective Fading Channels," IEEE Communications Letters, Vol.5, No.7, pp.304-306, July2001 https://doi.org/10.1109/4234.935750
  5. IEEE Standard 802.16a: Air Interface for Fixed Broadband Wireless Access Systems – Amendment 2: Medium Access Control Modifications and Additional Physical Layer Specifications for 2-11GHz, IEEE
  6. D. Falconer, S.L. Ariyavisitakul, A. Benyamin-Seeyar, B. Eidson, "Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems," IEEE Communications Magazine, Vol.40, No.4, pp.58-66, April 2002 https://doi.org/10.1109/35.995852
  7. A. Gusmao, R. Dinis, J. Conceicao, N. Esteves, "Comparisons of Two Modulation Choices for Broadband Wireless Communications," VTC, pp.1300-1305, May 2000.
  8. H. Liu, G. Li, OFDM-Based Broadband Wireless Networks, John Wiley & Sons Inc. 2005
  9. IEEE P802.16e/D12: Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems: Amendment for Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands, October 2005
  10. IEEE802.20: QFDD and QTDD: Proposed Draft Air Interface Specification, Qualcomm, October 2005
  11. 3GPP TR 25.814: Technical Specification Group Radio Access Network; Physical Layer Aspects for Evolved UTRA, February 2006
  12. R1-050807, ETRI, Pilot Structure for SC-FDMA, London, England, August 2005
  13. Results for Uplink OFDMA and SC-FDMA, London, England, September 2005
  14. R1-051099, Qualcomm, Considerations on OFDMA and SC-FDMA based Uplink for E-UTRA Evaluation – Link Aspects, San Diego, CA, October 2005
  15. R1-051421, Nortel, UL Link Level Performance of SC-FDMA and OFDMA with Real Channel Estimation and Virtual MIMO, Seoul, Korea, November 2005
  16. G. Bauch, J.S. Malik, "Orthogonal Frequency Division Multiple Access with Cyclic Delay Diversity", Smart Antennas, 2004. ITG Workshop, pp.17-24, March 2004
  17. A. Huebner, F. Schuehlein, M. Bossert, E. Costa, H. Haas, "A Simple Space-Frequency Coding Scheme with Cyclic Delay Diversity for OFDM," Personal Mobile Communications Conference, 2003. 5th European, pp.106-110, April 2003
  18. G. Bauch, and J. S. Malik, "Cyclic delay diversity with bit-interleaved coded modulation in orthogonal frequency division multiple access", IEEE Trans. Wireless Communications, vol. 5, no. 8, pp. 2092-2100, Aug. 2006 https://doi.org/10.1109/TWC.2006.1687724
  19. S. Haykin, "Communication Systems," John Wiley & Sons, 2001
  20. R1-031303, Ericsson, "System-level evaluation of OFDM – further considerations," 3GPP RAN WG1 #35, Lisbon, Portugal, November 2003
  21. T. M. Cover and J. A. Thomas, Elementary of Information Theory, Wiley, New York, 1991
  22. Theodore S. Rappaport, Wireless Communications Principles and Practice, pp.197-203, Prentice Hall, 2002