대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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MLSE 기반 MIMO-FQPSK 수신기 성능 분석

Performance of MIMO-FQPSK Receivers with MLSE

  • 김상헌 (연세대학교 전기전자공학과) ;
  • 정성헌 (㈜삼성탈레스) ;
  • 신명철 (연세대학교 전기전자공학과) ;
  • 이충용 (연세대학교 전기전자공학과)
  • Kim, Sang-Heon (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Jung, Sung-Hun (Samsung Thales Company, Ltd.) ;
  • Shin, Myeong-Cheol (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Cyung-Yong (School of Electrical and Electronic Engineering, Yonsei University)
  • 발행 : 2007.06.25
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초록

본 논문에서는 높은 스펙트럼 효율 및 우수한 용량을 제공할 수 있는 다중안테나 기반의 Feher-patented quadrature phase shift keying(FQPSK) 시스템을 고려한다. 매 비트 구간마다 샘플링된 복소 기저 대역 신호가 여덟 개의 위상 값만을 가진다는 사실을 이용하여 maximum likelihood sequence estimation 기법을 이용하여 FQPSK 복조를 수행하고 이를 다중 안테나 시스템으로 확장한다. 다중 안테나 FQPSK 수신기의 성능을 모의실험을 통해 분석하고, zero-forcing 수신기 및 minimum-mean-square-error 수신기에 대한 union upper bound를 구하도록 한다.

In this Paper, we consider multiple input multiple output Feher-patented quadrature phase shift keying (MIMO-FQPSK) system supporting high spectral efficiency and throughput. Based on the fact that the complex baseband signal sampled at every bit duration has only eight phase values and its signal can be considered as 8-phase-shift keying signal, FQPSK demodulation with maximum likelihood sequence estimation(MLSE) is considered and it is extended to MIMO system. The performance of MIMO-FQPSK receiver is analyzed by computer simulation and by considering the union upper bounds for zrero forcing detection and minimum mean square error detection.

키워드

참고문헌

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