Journal of Communications and Networks

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

Performance Analysis of Cyclostationary Interference Suppression for Multiuser Wired Communication Systems

  • Im, Gi-Hong (Communications Research Lab., Pohang University of Science and Technology (POSTECH)) ;
  • Won, Hui-Chul (Communications Research Lab., Pohang University of Science and Technology (POSTECH))
  • Published : 2004.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper discusses cyclostationary interference suppression for multiuser wired communication systems. Crosstalk interference from digital signals in multipair cables has been shown to be cyclostationary. Many crosstalk equalization or suppression techniques have been proposed which make implicit use of the cyclostationarity of the crosstalk interferer. In this paper, the convergence and steady-state behaviors of a fractionally spaced equalizer (FSE) in the presence of multiple cyclostationary crosstalk interference are thoroughly analyzed by using the equalizer's eigenstructure. The eigenvalues with multiple cyclostationary interference depend upon the folded signal and interferer power spectra, the cross power spectrum between the signal and the interferer, and tile cross power spectrum between the interferers, which results in significantly different initial convergence and steady-state behaviors as compared to the stationary noise case. The performance of the equalizer varies depending on the relative clock phase of the symbol clocks used by the signal and multiple interferers. Measued characteristics as well as analytical model of NEXT/FEXT channel are used to compute the optimum and worst relative clock phases among the signal and multiple interferers.

Keywords

References

  1. J. Salz, 'Digital transmission over cross-coupled linear channels,' AT&T Tech. J., vol. 64, no. 6, pp. 1147-1157, July/Aug. 1985
  2. J. J. Werner, 'The HDSL environment,' IEEE J. Select. Areas Commun., vol. 9, no. 6, pp. 785-800, Aug. 1991 https://doi.org/10.1109/49.93089
  3. T. Starr, J. M. Cioffi, and P. J. Silverman, Understanding Digital Subscriber Line Technology, Prentice Hall, 1999
  4. W. Y. Chen, DSL Simulation Techniques and Standards Development for Digital Subscriber Line Systems, Macmillan Technology Series, 1998
  5. G. H. Im et al., '51.84 Mb/s 16-CAP ATMLAN standard,' IEEE J. Select. Areas Commun., vol. 13, no. 4, pp. 620-632, May 1995 https://doi.org/10.1109/49.382153
  6. W. Y. Chen, G. H. Im, and J. J. Werner, 'Design of digital carrierless AM/PM transceivers,' AT&T/Bellcore Contribution T1E1.4/92-149, Aug.19, 1992
  7. B. Daneshrad and H. Samueli, 'A 1.6 Mb/s digital-QAM system for DSL transmission,' IEEE J. Select. Areas Commun., vol. 13, no. 9, pp. 1600-1610, Dec. 1995 https://doi.org/10.1109/49.475533
  8. D. D. Harman et aI., 'Local distribution for IMTV,' IEEE Multimedia, vol. 2, no. 3, pp. 14-23, Fall 1995 https://doi.org/10.1109/93.410506
  9. N. R. Shanbhag and G. H. Im, 'VLSI systems design of 51.84 Mb/s transceivers for ATM-LAN and broadband access,' IEEE Trans. Signal Processing, vol. 46, no. 5, pp. 1403-1416, May 1998 https://doi.org/10.1109/78.668802
  10. Special Issue on Very high-speed Digital Subscriber Lines, IEEE Commun. Mag., vol. 38, no. 5, May 2000
  11. V. Oksman and J. J. Werner, 'Single carrier modulation technology for very highspeed digital subscriber line,' IEEE Commun. Mag., vol. 38, no. 5, pp. 82-89, May 2000 https://doi.org/10.1109/35.841830
  12. G. H. Im, K. M. Kang, and C. J. Park, 'FEXT cancellation for twisted pair transmission,' IEEE J. Select. Areas Commun., vol. 20, no. 5, pp. 959-973, June 2002 https://doi.org/10.1109/JSAC.2002.1007378
  13. J. C. Campbell, A. J. Gibbs, and B. M. Smith, 'The cyclostationary nature of crosstalk interference from digital signals in multipair cable part I and II,' IEEE Trans. Commun., vol. 31, pp. 629-649, May 1983 https://doi.org/10.1109/TCOM.1983.1095868
  14. E. Biglieri, M. Elia, and L. Lopresti, 'The optimal linear receiving filter for digital transmission over nonlinear channels,' IEEE Trans. Inform. Theory, vol. 35, no. 3, pp. 620-625, May 1989 https://doi.org/10.1109/18.30984
  15. B. R. Petersen and D. D. Falconer, 'Minimum mean square equalization in cyclostationary and stationary interference analysis and subscriber line calculations,' IEEE J. Select. Areas Commun., vol. 9, pp. 931-940, Aug. 1991 https://doi.org/10.1109/49.93103
  16. M. L. Honig, P. Crespo, and K. Steiglitz, 'Suppression of near and farend crosstalk by linear pre and post filtering,' IEEE J. Select. Areas Commun., vol. 10, no. 3, pp. 614-629, Apr. 1992 https://doi.org/10.1109/49.127783
  17. W.A. Gardner, ed., Cyclostationarity in Communications and Signal Processing, New York: IEEE Press, 1994
  18. G. H. Im, H. C. Won, and C. J. Park, 'Convergence behavior of a phase-splitting fractionally spaced equalizer in the presence of a cyclostationary crosstalk interference,' IEEE Commun. Lett., vol. 4, no. 8, pp. 261-263, Aug. 2000 https://doi.org/10.1109/4234.864188
  19. H. C. Won and G. H. Im, 'Crosstalk equalization for highspeed digital transmission systems,' IEICE Trans. Commun., vol. E86-B, no.3, Mar. 2003
  20. G. H. Im and N. R. Shanbhag, 'A pipelined adaptive NEXT canceller,' IEEE Trans. Signal Processing, vol. 46, no. 8, pp. 2252-2258, Aug. 1998
  21. J. J. Werner, 'An echo cancellation based 4800 bit/s full-duplex DDD modem,' IEEE J. Select. Areas Commun., vol. 2, no. 5, pp. 722-730, Sept. 1984 https://doi.org/10.1109/JSAC.1984.1146110
  22. G. H. Im, C. K. Un, and J. C. Lee, 'Performance of a class of adaptive data driven echo cancellers,' IEEE Trans. Commun., vol. 37, no. 12, pp. 1254-1263, Dec. 1989 https://doi.org/10.1109/26.44197
  23. G. H. Im and K. M. Kang, 'Performance of a hybrid decision feedback equalizer structure for CAP-based DSL systems,' IEEE Trans. Signal Processing, vol. 49, no. 8, pp. 1768-1785, Aug. 2001 https://doi.org/10.1109/78.934148
  24. R. D. Gitlin, J. F. Hayes, and S. B. Weinstein, Data Communications Principles, Plenum Press, 1992
  25. F. Ling and S. U. H. Qureshi, 'Convergence and steady-state behavior of a phase-splitting fractionally spaced equalizer,' IEEE Trans. Commun., vol. 38, no. 4, pp. 418-425, Apr. 1990 https://doi.org/10.1109/26.52651
  26. J. H. Wilkinson, The Algebraic Eigenvalue Problem, Clarendon, Oxford,1965