대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

다상 필터 기반 OFDM 전송 시스템을 위한 파일럿 채널 추정 기법

Pilot-symbol-aided channel estimation for the polyphae filter-based OFDM transmission system

  • 허진 (한양대학교 전자전기제어계측공학과) ;
  • 유경렬 (한양대학교 전자전기제어계측공학과)
  • Heo, Jin (Dept. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang University) ;
  • Yoo, Kyung-Yul (Dept. of Electronic, Electrical, Control and Instrumentation Engineering, Hanyang University)
  • 발행 : 2004.07.14
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초록

The polyphase filter-based orthogonal frequency division multiplexing (PF-OFDM) is proposed in [1]. It provides more efficient data transmission mechanism than the classical OFDM method. However, the channel estimation mechanism in the classical OFDM system such as the cyclic prefix can not be applied straightforwardly, since the received signal contains unpredictable terms. Therefore, the PF-OFDM system requires a complicated channel estimation scheme when it works on the multipath fading communication channel. In this paper, we proposed a pilot-symbol aided channel estimation algorithm suitable for the PF-OFDM system which efficiently deals with the unpredictable terms and verified its performance through a series of computer simulations.

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