Journal of Internet Computing and Services (인터넷정보학회논문지)

Korean Society for Internet Information (한국인터넷정보학회)
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Complex-Channel Blind Equalization Using Cross-Correntropy

상호 코렌트로피를 이용한 복소 채널 블라인드 등화

  • 김남용 (강원대학교 전자정보통신공학부)
  • Received : 2010.03.23
  • Accepted : 2010.09.06
  • Published : 2010.10.31
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Abstract

The criterionmaximizing cross-correntropy (MCC) of two different random variables has yielded superior performance comparing to mean squared error criterion. In this paper we present a complex-valued blind equalizer algorithm for QAM and complex channel environments based on cross-correntropy criterion which uses, as two variables, equalizer output PDF and Parzen PDF estimate of a self-generated symbol set. Simulation results show significantly enhanced performance of symbol-point concentration with no phase rotation in complex-channel communication.

두 랜덤 변수의 상호 코렌트로피 최대화 기준은 최소자승오차 기준에 비해 탁월한 성능을 보인다. 이 논문에서 제안하는 블라인드 등화 방식은, 등화기 출력 PDF와 자기 생성 심볼 집합의 파전 PDF를 두 랜덤 변수로 하는 상호 코렌트로피에 기준을 두어 QAM과 복소 채널 환경을 위해 설계되었다. 복소 채널 통신 환경의 시뮬레이션 결과에서 상 위상 회전이 없이 크게 향상된 심볼 포인트 집중 성능을 나타냈다.

Keywords

References

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