Journal of Internet Computing and Services (인터넷정보학회논문지)

Korean Society for Internet Information (한국인터넷정보학회)
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Decision Feedback Equalizer Algorithms based on Error Entropy Criterion

오차 엔트로피 기준에 근거한 결정 궤환 등화 알고리듬

  • 김남용 (강원대학교 전자정보통신공학부)
  • Received : 2011.03.22
  • Accepted : 2011.06.13
  • Published : 2011.08.31
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Abstract

For compensation of channel distortion from multipath fading and impulsive noise, a decision feedback equalizer (DFE) algorithm based on minimization of Error entropy (MEE) is proposed. The MEE criterion has not been studied for DFE structures and impulsive noise environments either. By minimizing the error entropy with respect to equalizer weight based on decision feedback structures, the proposed decision feedback algorithm has shown to have superior capability of residual intersymbol interference cancellation in simulation environments with severe multipath and impulsive noise.

다중경로 페이딩과 충격성 잡음에 의한 채널 왜곡을 보상하기 위하여 오차 엔트로피 최소화 (MEE)에 근거한 결정 궤환 등화 (DFE) 알고리듬을 제안하였다. MEE 성능기준이 아직 결정 궤환 구조나 충격성 잡음환경에 대해 연구된 바가 없다. 결정 궤환 구조의 등화기의 가중치에 대해 오차 엔트로피를 최소화함으로써 제안된 알고리듬은 심각한 다중경로와 충격성 잡음 환경에서 탁월한 잔여 심볼간 간섭제거능력을 보였다.

Keywords

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