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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Transmit Diversity Using Windowing Scheme in OFDM System

OFDM 시스템에서 윈도윙 기법을 이용한 송신 다이버시티

  • Published : 2007.09.30
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Abstract

In this paper, we propose a new transmit diversity scheme using window functions in orthogonal frequency division multiplexing (OFDM) system. Transmit diversity of the scheme is varied with window functions and the condition of the window function to maximize transmit diversity is derived. The proposed scheme can be considered as a generalization of the diversity schemes such as cyclic delay diversity (CDD), orthogonal transmit diversity (OTD), and frequency switched transmit diversity (FSTD).

본 논문은 다중 송신 안테나를 사용하는 직교 주파수 분할 다중 반송파(OFDM: orthogonal frequency division multiplexing) 시스템에서 윈도윙 기법을 이용하여 송신 다이버시티 효과를 얻는 새로운 기법을 제안한다. 제안된 기법은 윈도우 함수의 형태에 따라 송신 다이버시티 효과가 달라지며 송신 다이버시티를 최대화하기 위한 윈도우 함수의 조건을 제시한다. 제안된 기법은 윈도우 함수의 형태에 따라 순환 지연 다이버시티 (CDD: cyclic delay diversity) 기법, 직교 송신 다이버시티(OTD: orthogonal transmit diversity) 기법, 주파수 스위치 송신 다이버시티(FSTD: frequency switched transmit diversity) 기법을 일반화한 기법으로 해석될 수 있다.

Keywords

References

  1. V. Tarokh, N. Seshadri, and A. Calderbank, 'Space-time codes for high data rate wireless communication I: performance criterion and code construction,' IEEE Trans. Information Theory, vol.44, no. 2, pp. 744-765, March 1998 https://doi.org/10.1109/18.661517
  2. S. Alamouti, 'A simple transmitter diversity technique for wireless communications,' IEEE J. Sel. Areas Commun., special issue on signal processing for wireless communications, vol. 16, no. 8, pp. 1451-1458, 1998 https://doi.org/10.1109/49.730453
  3. V. Tarokh, H. Jafarkhani, and A. Calderbank, 'Space-time block codes from orthogonal designs,' IEEE Trans. Inf. Theory, vol. 45, pp. 1456-1467, June 1999 https://doi.org/10.1109/18.771146
  4. S. Kaiser, 'Spatial transmit diversity techniques for broadband OFDM systems,' in Proc. IEEE Globecom 2000, November 2000, pp. 1824–1828
  5. A. Dammann and S. Kaiser, 'Standard conformable antenna diversity techniques for OFDM systems and its application to the DVB-T system,' in Proc. IEEE Globecom 2001, pp. 3100–3105
  6. 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
  7. A. Lodhi, F. Said, M, Doher, and A. H. Aghvami, 'Performance comparison of space-time block coded and cyclic delay diversity MC-CDMA systems,' IEEE Wireless Communications, vol. 12, pp. 38-45, Apr. 2005