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파일럿 심볼을 이용한 안테나 선택방법을 적용한 SFBC-OFDM 시스템의 성능분석

Performance Analysis of SFBC-OFDM Systems with a Antenna Selection using Pilot Symbols

  • 투고 : 2015.04.20
  • 심사 : 2015.06.26
  • 발행 : 2015.07.25

초록

본 논문에서는 파일럿 심볼을 이용한 안테나 선택방법을 적용한 SFBC-OFDM(Space Frequency Block Code-Orthogonal Frequency Division Multiplexing) 시스템에 대한 성능을 분석한다. 안테나 선택은 파일럿 심볼로부터 산출된 채널 계수에 기반하여 결정된다. 각 주파수에서, 산출된 채널 계수들을 정렬하고 그 중 가장 양호한 채널이 선택된 후 가장 좋은 계수를 가지는 안테나로 데이터가 전달된다. 또한 이 방법에 대해서 부호 이득과 다이버시티 이득도 분석된다.

In this paper, we analyze a SFBC-OFDM(Space Frequency Block Code-Orthogonal Frequency Division Multiplexing) system with antenna selection method using pilot symbols. An antenna selection criterion is based on channel coefficients estimated from pilot symbols. At each frequency, the channel coefficients is arranged and the best is selected, and then data is sent to those antenna with the best coefficients. Also, The coding and diversity gain of the proposed system are analyzed.

키워드

참고문헌

  1. H.Bolcskei and A,J.Paulraj, "Space-frequency coded broadband OFDM Systems", in IEEE Wireless Communications and Networking Conference, pp.1-6, Sept. 2000.
  2. S.M.Alamouti, "A simple transmit diversity technique for wireless communications", IEEE Journal on selected areas in communication. vol.16 ,no.8, Oct 1998.
  3. P.W. Wolniansky, G. J. Foschini, G. D. Golden, and R. A. Valenzuela, "V-BLAST: An Architecture for Realizing Very high Data Rates Over the Rich-Scattering Wireless Channel", IEEE International Symposium on Signals, Systems, and Electronics, pp. 295-300, Sep. 1998.
  4. V.Tarokh, H.Jafarkhani and A.R.Chalderbank, "Space-time block codes from orthogonal designs", IEEE Trans. Information Theory, vol.45, no.5, pp.1456-1467, July 1999. https://doi.org/10.1109/18.771146
  5. M.Torabi and R.Soleymani, "Adaptive Modulation for OFDM Systems Using Space-Frequency Block Codes", in proc. IEEE Wireless Communications and Networking Conference, WCN2003, New Orleans, Louisiana, March 16-20, 2003.
  6. T.Rappaport, "Wireless Communications, Upper Saddle River", Prentice Hall, 2ed., 2002.
  7. Andrea Goldsmith, "Wireless Communication", ISBN 0-521-837162, pp.173-225.