Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
권호 표지

A Systematic Code Design for Reduction of the PAPR in OFDM

직교 주파수분할다중화에서 첨두전력 대 평균전력비 감소를 위한 체계적인 부호설계

  • Kang Seog-Gen (School of Electrical and Electronics Engineering, Gyeongsang National University) ;
  • Kim Jeong-Goo (School of Computer Science and Engineering, Pusan National University)
  • 강석근 (경상대학교 전기전자공학부) ;
  • 김정구 (부산대학교 정보컴퓨터공학부)
  • Published : 2006.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

Design criteria far a block code which guarantees minimized PAPR of the OFDM signals are proposed in this paper. Encoding procedure of the minimum PAPR codes (MPC) is composed of searching a seed codeword, circular shifting the register elements, and determining codeword inversion. It is shown that the PEP is invariant to the circular shift of register elements and codeword inversion. Based on such properties, systematic encoding rule for MPC is proposed. In addition proposed encoding rule can reduced greatly the size of look up table for MPC.

본 논문에서는 직교 주파수분할다중화(orthogonal frequency division multiplexing; OFDM)의 변조된 신호열에서 항상 최소화된 첨두전력 대 평균전력비(peak-to-average power ratio; PAPR)를 보장할 수 있는 블록부호가 제안된다. 제안된 최소 PAPR 부호(minimum PAPR code; MPC) 부호화 과정은 씨앗부호어(seed codeword) 검색, 레지스터 요소의 순회천이(circular shifting), 그리고 비트반전(bit inversion)으로 이루어진다. 시간영역 전송신호열의 첨두 포락선전력(peak envelope power; PEP)이 레지스터에 저장된 부호어의 순회천이와 부호의 비트반전에 대하여 변화되지 않음을 보였다. 이러한 성질에 기반하여 체계적인 MPC 부호화 규칙이 제안되었다. 제안된 부호 규칙으로 MPC 부호화를 위한 조견표(look-up table)의 크기를 대폭 감소시킬 수 있다.

Keywords

References

  1. J. A. C. Bingham, 'Multicarrier modulation for data transmission: An idea whose time has come,' IEEE Commun. Mag., vol. 28, no. 5, pp. 5-14, May 1990 https://doi.org/10.1109/35.54342
  2. T. D. Cousnon, R. Monnia, and J. B. Rault, 'OFDM for digital terrestrial TV broadcasting,' Signal Processing, vol. 39, nos. 1-2, pp. 1-32, Sep. 1994 https://doi.org/10.1016/0165-1684(94)90120-1
  3. European Telecommunications Standards Institute, Radio Broadcasting Systems; Digital Audio Broadcasting (DAB) to mobile, portable, and fixed receivers, 2nd ed., ETS300401, Sophia Antipolis, France, May 1997
  4. European Broadcasting Union, Digital Video Broadcasting: Framing Structure, Channel Coding, and Modulation for Digital Terrestrial Television, Draft EN300744 V1.2.1, Geneva, Switzerland, Jan. 1999
  5. LAN/MAN Standards Committee, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High-Speed Physical Layer in the 5 GHz Band, IEEE Std. 802.11a, Piscataway, NJ, Sep. 1999
  6. N. R. Sollenberger, 'The evolution of TDMA to 3G & 4G wireless systems,' http://www.comsoc.org/~vancouver/TDMA3G4G-files/frame.html
  7. 이진환, 함영권, 이수인, '국내 지상파 DMB 동향,' 전자통신동향분석, 제19권, 제4호, pp. 10-16, 2004. 08
  8. M. Ghavami, L.B. Michael, and R. Kohno, Ultra Wideband Signals and Systems in Communication Engineering, Wiley, Chichester, England, 2004
  9. S. G. Kang, 'Peak-to-average power ratio of orthogonal frequency division multiplexing with ICI self-cancellation,' J. IEEK, vol. 42-TC, no. 1, pp. 1-8, Jan. 2005
  10. A. E. Jones, T. A. Wilkinson, and S. K. Barton, 'Block coding scheme for reduction of peak to mean envelope power ratio of multicarrier transmission schemes,' Electron. Lett., vol. 30, no. 25, pp. 2098-2099, Dec. 1994 https://doi.org/10.1049/el:19941423
  11. J. A. Davis and J. Jedweb, 'Peak-to-mean power control in OFDM, Golay complementary sequences, and Reed-Muller codes,' IEEE Trans. Inform. Theory, vol. 45, no. 7, pp. 2397-2417, Nov. 1999 https://doi.org/10.1109/18.796380
  12. H. Ochiai and H. Imai, 'On the distribution of the peak-to-average power ratio in OFDM signals,' IEEE Trans. Commun., vol. 48, no. 2, pp. 282-289, Feb. 2001
  13. S. G. Kang, J. G. Kim, and E. K. Joo, 'A novel subblock partition scheme for partial transmit sequence OFDM,' IEEE Trans. Broadcast., vol. 45, no. 3, pp. 333-338, Sep. 1999 https://doi.org/10.1109/11.796276
  14. H. Breiling, S. H. Muller-Weinfurtner, and J. B. Huber, 'SLM peak-power reduction without explicit side information,' IEEE Commun. Lett., vol. 5, no. 6, pp. 239-241, June 2001 https://doi.org/10.1109/4234.929598
  15. S. H. Han and J. H. Lee, 'Modified selected mapping technique for PAPR reduction of coded OFDM signal,' IEEE Trans. Broadcast., vol. 50, no. 3, pp. 335-341, Sep. 2004 https://doi.org/10.1109/TBC.2004.834200
  16. P. P. Vaidyanathan, Multirate Systems and Filter Banks, Prentice-Hall, New Jersey, 1993