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

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

Bit Metric Generation of BRGC M-PSK Signals

BRGC M-PSK 신호의 비트 정보 발생

  • Published : 2009.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we present a bitwise metric generating function for a binary reflected Gray coded (BRGC) M-PSK signal by means of coordinate rotation. Using the properties of the BRGC mapping, we minimize the number of coordinate rotations. The proposed function does not rely on channel state information (CSI), and provides low implementing complexity.

본 논문에서는 좌표 회전 방법을 이용하여 binary reflected Gray coded (BRGC) M-PSK 신호의 비트별 매트릭 계산 함수를 제안하였다. 이 함수는 BRGC 매핑 함수의 특징을 이용하여 좌표축 회전을 최소화하는 방법을 찾아 적용하였다. 제안된 비트별 매트릭 발생 함수는 채널 상태 정보를 필요로 하지 않으면 구현을 할 때 낮은 복잡도를 갖는 장점이 있다.

Keywords

References

  1. J. E. Ludman, 'Gray Code Generation for MPSK Signals,' IEEE Trans. on Comm., Vol.COM-29, no.10, pp.1519-1522, Oct.1981 https://doi.org/10.1109/TCOM.1981.1094886
  2. E. Agrell, J. Lassing, E. G. Strom, and T. Ottosson, 'On the Optimality of the Binary Reflected Gray Code,' IEEE Trans. On Info. Theory, Vol.50, No.12, pp.3170-3182, Dec. 2004 https://doi.org/10.1109/TIT.2004.838367
  3. C. C. Wang, 'Improved Metric for Binary Turbo Decoding Using M-ary PSK Signals,' IEEE WCNC'03, Vol.1, pp.711-714, Mar. 2003 https://doi.org/10.1109/WCNC.2003.1200438
  4. S. Bring, J. Speidel, and R. H. Yan, 'Iterative demapping for QPSK modulation,' IEE Elec. Lett., vol.34, No.15, pp.1459-1460, July 1998 https://doi.org/10.1049/el:19981059
  5. W. H. Thesling, F. Xiong, and M. J. Vanderaar, 'Planar approximation for the least reliable bit log-likelihood ratio of 8-PSK modulation,' IEE Proc. on Comm., vol.147 ,No.3 , pp.144-148, June 2000 https://doi.org/10.1049/ip-com:20000178
  6. K. Hyun, and D. Yoon, 'Bit Metric Generation for Gray Coded QAM Signals,' IEE Proceedings on Comm., Vol.152, No.6, pp.1134-1138, Dec2005 https://doi.org/10.1049/ip-com:20050187
  7. 김기설, 현광민, 박상규, 'Gray 부호화된 M-PSK 신호의 비트 정보 분할 알고리듬,' 한국통신학회논문지, vol 31, No.8A, pp.784-789, Aug. 2006