대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

LMS기반 PF-OFDM에서의 적응 빔포밍 설계

Adaptive beamforming for a PF-OFDM system using LMS algorithm

  • 유경렬 (한양대 공대 전자공학과) ;
  • 오준석 (한양대 공대 전자공학과)
  • 발행 : 2006.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The orthogonal frequency-division multiplexing (OFDM) technique is well known to be robust against the frequency-selective fading in wireless channels. It is due to the exploitation of a guard interval that is inserted at beginning of each OFDM symbol. Based on the conventional OFDM and a polyphase filtered orthogonal frequency division multiplexing (PF-OFDM) technique, we developed an adaptive beamforming algorithm for antenna arrays. The proposed algorithm would lead to an efficient use of channel, since it is possible to eliminate a guard interval and also easily suppress interchannel interference at the same time. In this paper, a series of computer simulations have been provided to show the performance of the proposed system.

키워드

참고문헌

  1. J. S. Thompson, P. M. Grant, B. Mulgrew, 'Smart Antenna Arrays for CDMA Systems,' IEEE Pers. Comm., pp.16-25, Octoder 1996 https://doi.org/10.1109/98.542234
  2. C. S. Lee and K. Y. Yoo, 'Polyphase filtered OFDM transmission system,' IEEE Electronics Letters, vol. 40, pp. 687-688, May 2004 https://doi.org/10.1049/el:20040484
  3. A. F. Naguib, A. Paulraj, T Kailath, 'Capacity Improvement with Base-Station Antenna Arrays in Cellular CDMA,' IEEE Trans. Veh. Tech., vol.43, no.3, pp.691-698, August 1994 https://doi.org/10.1109/25.312780
  4. C. K. Kim, 'Adaptive beamforming for an OFDM system,' IEEE Pers. Comm., pp.484-489 Dec. 1999 https://doi.org/10.1109/VETEC.1999.778102