The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Comparisons on Diversity Techniques for SC-FDE Systems

SC-FDE 시스템에서의 다이버시티 기술 비교

  • Published : 2008.10.30
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Abstract

This paper compares the performances of cyclic delay diversity and phase rolling techniques for SC-FDE(Single Carrier with Frequency Domain Equalization) systems with multiple transmit antennas assuming time-flat and frequency-flat channels. In OFDM(Orthogonal Frequency Division Multiplexing) systems generation of time varying channels using phase rolling can result in performance gains comparable to those of frequency-selective channels made by cyclic delay diversity However, in SC-FDE systems making time-selective channels may produce better results than creation of frequency-selective channels.

본 논문에서는 채널이 시간 및 주파수에서 비선택적일 때를 가정하여 복수의 송신 안테나를 사용하는 SC-FDE(Single Carrier with Frequency Domain Equalization) 시스템에서 순환지연 다이버시티 기술과 위상 회전 기술의 성능을 비교한다. OFDM(Orthogonal Frequency Division Multiplexing) 시스템에서는 위상 회전을 이용하여 시간축에서 변화하는 채널을 만드는 것과 순환지연 다이버시티를 사용하여 주파수 선택적 채널을 만드는 것은 유사한 성능을 보인다. 그러나 SC-FDE 시스템에서는 시간축에서 변화하는 채널을 만드는 것이 주파수축에서 변화하는 채널을 만드는 것보다 더 우수한 성능을 보일 수 있다.

Keywords

References

  1. Z. Wang and 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 and A. Koppler, "A Different Look on Cyclic Prefix for SC/FDE," PIMRC, pp.824-828, Sep. 2002
  3. H. Witschnig, G. Ossberger, A. Springer, A. Koppler, L. Maurer, M. Huemer and R. Weigel, "The Effect of Blockwise Transmission on Higher- Order Modulation Schemes for SC/FDE," International Symposium Wireless Personal Multimedia Communications, pp.27-30, Oct. 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, July 2001 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 and B. Eidson, "Frequency Domain Equalization for Single-Carrier Broadband Wireless Systems," IEEE Communications Magazine, Vol.40, No.4, pp.58-66, Apr. 2002
  7. A. Gusmao, R. Dinis, J. Conceicao and N. Esteves, "Comparisons of Two Modulation Choices for Broadband Wireless Communications," VTC, pp.1300-1305, May 2000
  8. H. Liu and 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, Oct. 2005
  10. IEEE802.20: QFDD and QTDD: Proposed Draft Air Interface Specification, Qualcomm, Oct. 2005
  11. 3GPP TR 25.814: Technical Specification Group Radio Access Network; Physical Layer Aspects for Evolved UTRA, Feb. 2006
  12. R1-050807, ETRI, Pilot Structure for SC-FDMA, London, England, Aug. 2005
  13. R1-050834, LG Electronics, Basic Performance Results for Uplink OFDMA and SC-FDMA, London, England, Sep. 2005
  14. R1-051099, Qualcomm, Considerations on OFDMA and SC-FDMA based Uplink for E-UTRA Evaluation - Link Aspects, San Diego, CA, Oct. 2005
  15. R1-051421, Nortel, UL Link Level Performance of SC-FDMA and OFDMA with Real Channel Estimation and Virtual MIMO, Seoul, Korea, Nov. 2005
  16. A. Paularj, R. Nabar and D. Gore, Introduction to Space-Time Wireless Communications, Cambridge University Press, 2003
  17. D. Gesbert, M. Shafi, D.S. Shiu, P.J. Smith and A. Naguib, "From Theory to Practice: An Overview of MIMO Space-Time Coded Wireless Systems," IEEE Journalon Selected Areas in Communications, Vol.21, No.3, pp.281-302, Apr. 2003 https://doi.org/10.1109/JSAC.2003.809458
  18. G. Bauch and J.S. Malik, "Orthogonal Frequency Division Multiple Access with Cyclic Delay Diversity," Smart Antennas, 2004. ITG Workshop, pp.17-24, Mar. 2004
  19. 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
  20. S. Haykin, "Communication Systems," John Wiley & Sons, 2001
  21. R1-031303, Ericsson, "System-level evaluation of OFDM - further considerations," 3GPP RAN WG1 #35, Lisbon, Portugal, Nov. 2003