Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Adaptive beamforming for a PF-OFDM system using LMS algorithm

LMS기반 PF-OFDM엔서의 적응 빔포밍 설계

  • Oh, Jun-Suk (Dept. of Electronic, Electrical, Control and instrumentation Engineering, Hanyang University) ;
  • Kim, Jae-Yun (Dept. of Electronic, Electrical, Control and instrumentation Engineering, Hanyang University) ;
  • Yoo, Kyung-Yul (Dept. of Electronic, Electrical, Control and instrumentation Engineering, Hanyang University)
  • 오준석 (한양대학교 전자전기제어계측공학과) ;
  • 김재윤 (한양대학교 전자전기제어계측공학과) ;
  • 유경렬 (한양대학교 전자전기제어계측공학과)
  • Published : 2005.07.18
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Abstract

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 or 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.

Keywords