대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

실내 무선 채널에서 OFDM시스템의 등화 기법

An Equalization Technique for OFDM Systems in Indoor Wireless Channel

  • 한문용 (연세대학교 전기전자공학과) ;
  • 이영진 (연세대학교 전기전자공학과) ;
  • 김근희 (연세대학교 전기전자공학과) ;
  • 서종수 (연세대학교 전기전자공학과)
  • 발행 : 2001.06.01
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초록

Recently, as demands for super-high speed broad band wireless multimedia service increase, variable researches to develop wireless LAN have been carried out. In this paper, we propose and analyze LS(Least Squares)-PSA(Pilot Symbol Assisted) equalizer which compensates for each subcarrier of different attenuations and phase response for OFDM(Orthogonal Frequency Division Multiplexing)-based indoor wireless LAN systems. The proposed equalizer enhances the $E_{b}$ $N_{o}$ performance of 3dB and 4dB at BER=10$^{-2}$ as compared with LS equalizer in AWGN channel and indoor wireless channel respectively..

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