Open Access

ADSL Transceivers Applying DSM and Their Nonstationary Noise Robustness

  • Etienne Van den Bogaert1,
  • Tom Bostoen2,
  • Jan Verlinden2,
  • Raphael Cendrillon3 and
  • Marc Moonen4
EURASIP Journal on Advances in Signal Processing20062006:067686

https://doi.org/10.1155/ASP/2006/67686

Received: 10 December 2004

Accepted: 18 May 2005

Published: 5 February 2006

Abstract

Dynamic spectrum management (DSM) comprises a new set of techniques for multiuser power allocation and/or detection in digital subscriber line (DSL) networks. At the Alcatel Research and Innovation Labs, we have recently developed a DSM test bed, which allows the performance of DSM algorithms to be evaluated in practice. With this test bed, we have evaluated the performance of a DSM level-1 algorithm known as iterative water-filling in an ADSL scenario. This paper describes the results of, on the one hand, the performance gains achieved with iterative water-filling, and, on the other hand, the nonstationary noise robustness of DSM-enabled ADSL modems. It will be shown that DSM trades off nonstationary noise robustness for performance improvements. A new bit swap procedure is then introduced to increase the noise robustness when applying DSM.

[123456789]

Authors’ Affiliations

(1)
Research & Innovation Department of Alcatel
(2)
Access Networks Division of Alcatel
(3)
School of Information Technology & Electrical Engineering, University of Queensland
(4)
Department of Electrical Engineering, Katholieke Universiteit Leuven

References

  1. Starr T, Sorbara M, Cioffi JM, Silverman PJ: DSL Advances, Prentice Hall Communications Engineering and Emerging Technologies Series. Prentice Hall PTR, Upper Saddle River, NJ, USA; 2002.Google Scholar
  2. Yu W, Ginis G, Cioffi JM: Distributed multiuser power control for digital subscriber lines. IEEE Journal on Selected Areas in Communications 2002, 20(5):1105-1115. 10.1109/JSAC.2002.1007390View ArticleGoogle Scholar
  3. Spectrum management for loop transmission systems, Issue 2 ANSI, ANSI-T1.417, November 2002Google Scholar
  4. Kerpez KJ, Waring DL, Galli S, Dixon J, Madon P: Advanced DSL management. IEEE Communications Magazine 2003, 41(9):116-123. 10.1109/MCOM.2003.1232246View ArticleGoogle Scholar
  5. Ginis G, Cioffi JM: Vectored transmission for digital subscriber line systems. IEEE Journal on Selected Areas in Communications 2002, 20(5):1085-1104. 10.1109/JSAC.2002.1007389View ArticleGoogle Scholar
  6. Asymmetrical digital subscriber line (ADSL) transceivers ITU Std G.992.1, 1999Google Scholar
  7. Asymmetrical digital subscriber line (ADSL) transceivers ITU Std G.992.1, 2003Google Scholar
  8. Suciu R, Van den Bogaert E, Verlinden J, Bostoen T: Ensuring spectral compatibility of DSM. Proceedings of EURASIP 12th European Signal Processing Conference (EUSIPCO '04), September 2004, Vienna, AustriaGoogle Scholar
  9. Verlinden J, Van den Bogaert E, Bostoen T, Cendrillon R, Moonen M: Protecting the robustness of ADSL and VDSL DMT modems when applying DSM. Proceedings of IEEE International Zurich Seminar on Communications (IZS '04), February 2004, Zurich, Switzerland 140-143.Google Scholar

Copyright

© den Bogaert et al. 2006