The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지
DOI QR코드

DOI QR Code

MMSE Based Continuous Turbo Equalizer for MIMO-HARQ Systems

MIMO-HARQ 시스템을 위한 MMSE 기반 연속 터보 등화기

  • Park, Sangjoon (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Choi, Sooyong (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2014.09.04
  • Accepted : 2014.09.18
  • Published : 2014.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this letter, an MMSE based continuous turbo equalizer is proposed for MIMO-HARQ systems. In the proposed scheme, the soft information from the reception process for the previous transmission is reutilized at the initialization of the reception process for the next transmission to enhance the decoding convergence speed. Simulation results verify that the proposed scheme achieves an improved BLER with a significantly accelerated decoding convergence speed.

본 논문은 MIMO-HARQ 시스템을 위한 MMSE 기반 연속 터보 등화기를 제안한다. 제안 기법은 이전 전송의 수신 과정 중 생성된 연판정 정보를 재전송의 수신 과정 중 초기화 단계에서 재활용하여 복호수렴 속도의 개선을 도모한다. 모의실험을 통해 제안기법이 기존 기법 대비 향상된 블록 오율을 달성함과 동시에 복호 수렴 속도를 크게 개선함을 확인하였다.

Keywords

References

  1. T. Ait-Idir and S. Saoudi, "Turbo packet combining strategies for the MIMO-ISI ARQ channel," IEEE Trans. Commun., vol. 57, no. 12, pp. 3782-3793, Dec. 2009. https://doi.org/10.1109/TCOMM.2009.12.080318
  2. S. Park and S. Choi, "An iterative MMSE-SIC scheme with group shuffled BP decoding for MIMO systems," J. KICS, vol. 35, no. 10, pp. 815-821, Oct. 2011.
  3. K. Narayanan and G. Stuber, "A novel ARQ technique using the turbo coding principle," IEEE Commun. Lett., vol. 1, no. 2, pp. 49-51, Mar. 1997. https://doi.org/10.1109/4234.559361