DOI QR코드

DOI QR Code

주파수 비선택적 SIMO 페이딩 채널에서 단일 송신 안테나 및 시간 다이버시티를 이용한 두 사용자의 동시 전송 기법

A Dual-User Multiplexing Scheme Using Time Diversity over Frequency Nonselective SIMO Fading Channels

  • 최병조 (인천대학교 임베디드시스템공학과 무선통신연구실)
  • 투고 : 2013.01.16
  • 심사 : 2013.01.29
  • 발행 : 2013.02.28

초록

셀룰러 이동통신 시스템의 상향링크에서 단일 안테나를 갖는 한 쌍의 서로 다른 이동 단말에 회전 부호화 기법을 D-BLAST 구조와 유사하게 연속적으로 중첩하여 적용하고 시간 다이버시티를 이용하여 각각 최대 다이버시티 이득을 얻으면서 독립적인 동시 전송이 가능한 기법을 제안한다. 수신기에서는 시공간 부호화된 신호의 복호를 위해 기존에 제안된 부분 간섭 연속 제거 그룹 복호 기법의 복잡도를 개선하여 이용하였다. 모의실험을 통해 제안된 시스템의 성능을 여러 개의 수신 안테나와 다양한 QAM 변조 기법에 대하여 고찰하였다.

A dual-user multiplexing scheme for a pair of mobiles equipped with single antenna is proposed which incorporates time-delay diversity employing a rotation-based D-BLAST-like layered code. A low-dimension equivalent of the existing partial interference cancellation based group decoder is also proposed for the corresponding receiver. The BER performances of the proposed scheme and those of the ideal scheme are studied comparatively through Monte Carlo simulations.

키워드

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피인용 문헌

  1. On the Definition of Diversity Order Based on Renyi Entropy for Frequency Selective Fading Channels vol.19, pp.4, 2017, https://doi.org/10.3390/e19040179