Turbo Coded OFDM Scheme for a High-Speed Power Line Communication

고속 전력선 통신을 위한 터보 부호화된 OFDM

  • Kim, Jin-Young (Department of Wireless Communication Engineering, Kwangwoon University) ;
  • Koo, Sung-Wan (Department of Wireless Communication Engineering, Kwangwoon University)
  • 김진영 (광운대학교 전파공학과) ;
  • 구성완 (광운대학교 전파공학과)
  • Published : 2010.01.31


In this paper, performance of a turbo-coded OFDM system is analyzed and simulated in a power line communication channel. Since the power line communication system typically operates in a hostile environment, turbo code has been employed to enhance reliability of transmitted data. The performance is evaluated in terms of bit error probability. As turbo decoding algorithms, MAP (maximum a posteriori), Max-Log-MAP, and SOVA (soft decision viterbi output) algorithms are chosen and their performances are compared. From simulation results, it is demonstrated that Max-Log-MAP algorithm is promising in terms of performance and complexity. It is shown that performance is improved 3dB by increasing the number of iterations, 2 to 8, and interleaver length of a turbo encoder, 100 to 5000. The results in this paper can be applied to OFDM-based high-speed power line communication systems.


OFDM;Power Line;Communication;Turbo Coding


  1. K. Dostert, Powerline Communications, Prentice Hall, 2001.
  2. M. L. Chan and R. W. Donaldson, "Attenuation of communication signals on residential and commercial intrabuilding power‐distribution circuits," IEEE Trans. Electromagn. Compat., vol. 28, no. 4, pp. 220-230, Nov. 1986.
  3. M. L. Chan and R. W. Donalson, "Amplitude, width, and interarrival distributions for noise impulse on intrabuilding power line communication networks," IEEE Trans. Electormagn. Compat., vol. 31, no.4, pp. 320-323, Aug. 1989.
  4. O. Hooijen, "A channel model for the residential power circuit used as a digital communications medium," IEEE Trans. Electomagn. Compat, vol. 40, pp. 331-336, 1998.
  5. O. Hooijen, Aspects of Residential Power Line Communications, Shaker‐Verlag, Archen, Germany, 1998.
  6. C. Berrou, A. Glavieux, and P. Thitimajshima, "Near Shannon limit error‐correcting coding: turbo codes," in Proc. of IEEE ICC '93, pp. 1064-1070, Geneva, Switzerland, June 1993.
  7. S. Benedetto and G. Montorsi, "Unveiling turbo codes: Some results on parallel concatenated coding schemes," IEEE Trans. Inform. Theory, vol. 42, pp. 409‐428, 1996.
  8. L. R. Bahl, J. Cocke, F. Jelinek, and J. Raviv, "Optimal decoding of linear codes for minimizing symbol error rates," IEEE Trans. Inform. Thoery, vol. 20, pp. 284-287, Mar. 1974.
  9. D. Divsalar, S. Dolinar, and F. Pollara, "Transfer function bounds on the performance of turbo codes," TDA Progress Report 42‐123, Jet Propulsion Laboratory, Pasadena, CA, U.S.A, Aug. 1995.
  10. G. D. Forney, Jr., Concatenated Codes, MIT Press, 1966.
  11. S. B. Weinstein and P. M. Ebert, "Data transmission by frequency‐division multiplexing using the discrete Fourier transform," IEEE Trans. Commun., vol. 19, no. 5, pp. 628-634, Oct. 1971.
  12. 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.
  13. L. J. Cimini, Jr., "Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing," IEEE Trans. Commun., vol. 33, no. 7, pp. 665-675, July 1985.
  14. K. Dostert, "Power lines as high speed data transmission channels‐modeling the physical limits," Proc. of IEEE ISSSTA '98, Sun City, South Africa, Sept. 1998, pp. 585-589.
  15. H. Philipps, "Modeling of powerline communication channels," Proc. of ISPLC '99, Lancaster, UK, Mar. 1999, pp. 14-21.
  16. M. K. Simon, S. M. Hinedi, and W. C. Lindsey, Digital Communication Techniques, Prentice‐Hall, 1995.
  17. J. Hagenauer and P. Hoeher, "A Viterbi algorithm with soft decision outputs and its applications," in Proc. of IEEE GLOBECOM '89, pp. 1680-1686, Dallas, TX, U.S.A, Nov. 1989.