Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지
DOI QR코드

DOI QR Code

Adaptive Iteration Schemes for Iterative Receivers in MIMO Systems

다중 안테나 반복 수신 시스템에서의 적응형 반복 결정 방법에 관한 연구

  • Noh, Jeehwan (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kwon, Dongseung (Electronics and Telecommunications Research Institute) ;
  • Lee, Chungyong (Department of Electrical and Electronic Engineering, Yonsei University)
  • 노지환 (연세대학교 전기전자공학부) ;
  • 권동승 (한국전자통신연구원) ;
  • 이충용 (연세대학교 전기전자공학부)
  • Received : 2013.06.13
  • Published : 2013.05.25
Download PDF
⟨ Previous Next ⟩

Abstract

We consider some adaptive iteration schemes that provide lower complexity of the iterative receiver by reducing unnecessary iterations. While conventional iterative receiver considers only fixed number of iterations, we apply adaptive iteration schemes, taking into account quality of the received frame. Based on simulation results, proposed schemes reduce average number of iterations while maintaining BER performance compared to the conventional scheme.

본 연구에서는 다중 안테나 시스템 기반 반복 수신기의 동작 원리를 이해하고 연산량을 줄이기 위한 연구를 진행하였다. 기존의 반복 수신기는 고정된 횟수의 반복 수신을 하는 것에 비하여, 적응형 반복 결정 방법은 프레임의 상태에 따라 반복 횟수를 조절함으로써 수신기에서의 불필요한 동작을 제한하여 연산량을 절감시킬 수 있다. 모의실험 결과를 통하여, 제안된 기법이 시스템의 에러 성능은 유지시키면서 수신기의 평균 반복 횟수를 크게 감소시키는 것을 확인하였다.

Keywords

References

  1. C. Berrou and A. Glavieux, "Near optimum error correcting coding and decoding: Turbo codes," IEEE Trans. Commun., vol. 44, no. 10, pp. 1261-1271, Oct. 1996. https://doi.org/10.1109/26.539767
  2. H. Vikalo, B. Hassibi, and T. Kailath, "Iterative Decoding for MIMO Channels via Modified Sphere Decoding," IEEE Trans. Wireless Commun., vol. 3, no. 6, pp. 2299-2311, Nov. 2004. https://doi.org/10.1109/TWC.2004.837271
  3. W. W. Peterson and D. T. Brown, "Cyclic codes for error detection," Proceedings of the IRE, pp. 228-235, Jan. 1961.
  4. A. Shibutani, H. Suda, and F. Adachi, "Reducing average number of tubo decoding iterations," Electron. Lett., vol. 35, no. 9, pp. 701-702, Apr. 1999. https://doi.org/10.1049/el:19990470
  5. Y. Wu, B. D. Woerner, and W. J. Ebel, "A Simple Stopping Criterion for Turbo Decoding," IEEE Commun. Lett., vol. 4, no. 8, pp. 258-260, Aug. 2000. https://doi.org/10.1109/4234.864187
  6. M. Sellathurai and S. Haykin, "TURBO-BLAST for wireless communications: Theory and experiments," IEEE Trans. Signal Process., vol. 50, no. 10, pp. 2538-2546, Oct. 2002. https://doi.org/10.1109/TSP.2002.803327
  7. I. Land and P. A. Hoeher, "Using the Mean Reliability as a Design and Stopping Criterion for Turbo Codes," IEEE Information Theory Workshop (ITW), pp. 27-29, Sept. 2001.
  8. J. Hagenauer, "Rate-compatible punctured convolutional codes (RCPC codes) and their applications," IEEE Trans. Commun., vol. 36, no. 4, pp. 389-400, Apr. 1988. https://doi.org/10.1109/26.2763