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Crosstalk channel estimation via standardized two-port measurements

Authors:

Fredrik Lindqvist,

Neiva Lindqvist,

Boris Dortschy,

Per Ola Börjesson,

Evaldo PelaesAuthors Info & Claims

EURASIP Journal on Advances in Signal Processing, Volume 2008

Article No.: 201, Pages 1 - 14

https://doi.org/10.1155/2008/916865

Published: 01 January 2008 Publication History

Abstract

The emerging multiuser transmission techniques for enabling higher data rates in the copper-access network relies upon accurate knowledge of the twisted-pair cables. In particular, the square-magnitude of the crosstalk channels between the transmission lines are of interest for crosstalk-mitigation techniques. Acquiring such information normally requires dedicated apparatus since crosstalk-channel measurement is not included in the current digital subscriber line (DSL) standards. We address this problem by presenting a standard-compliant estimator for the square-magnitude of the frequency-dependent crosstalk channels that uses only functionality existing in today's standards. The proposed estimator is evaluated by laboratory experiments with standard-compliant DSL modems and real copper access network cables. The estimation results are compared with both reference measurements and with a widely used crosstalk model. The results indicate that the proposed estimator obtains an estimate of the square-magnitude of the crosstalk channels with a mean deviation from the reference measurement less than 3 dB for most frequencies.

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Cited By

Lindqvist NLindqvist FMonteiro MDortschy BPelaes EKlautau A(2010)Impact of crosstalk channel estimation on the DSM performance for DSL networksEURASIP Journal on Advances in Signal Processing10.1155/2010/9350762010(1-11)Online publication date: 1-Feb-2010
https://dl.acm.org/doi/10.1155/2010/935076
Bezerra JKlautau AMonteiro MPelaes EMedeiros EDortschy B(2010)An evolutionary algorithm for improved diversity in DSL spectrum balancing solutionsEURASIP Journal on Advances in Signal Processing10.1155/2010/5136102010(1-11)Online publication date: 1-Feb-2010
https://dl.acm.org/doi/10.1155/2010/513610

Index Terms

Crosstalk channel estimation via standardized two-port measurements

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cover image EURASIP Journal on Advances in Signal Processing

EURASIP Journal on Advances in Signal Processing Volume 2008, Issue

January 2008

2311 pages

ISSN:1110-8657

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Publisher

Hindawi Limited

London, United Kingdom

Publication History

Accepted: 19 December 2008

Received: 21 September 2008

Published: 01 January 2008

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Cited By

Lindqvist NLindqvist FMonteiro MDortschy BPelaes EKlautau A(2010)Impact of crosstalk channel estimation on the DSM performance for DSL networksEURASIP Journal on Advances in Signal Processing10.1155/2010/9350762010(1-11)Online publication date: 1-Feb-2010
https://dl.acm.org/doi/10.1155/2010/935076
Bezerra JKlautau AMonteiro MPelaes EMedeiros EDortschy B(2010)An evolutionary algorithm for improved diversity in DSL spectrum balancing solutionsEURASIP Journal on Advances in Signal Processing10.1155/2010/5136102010(1-11)Online publication date: 1-Feb-2010
https://dl.acm.org/doi/10.1155/2010/513610

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