Partial crosstalk cancellation for upstream VDSL

Cendrillon, Raphael, Moonen, Marc, Ginis, George, Van Acker, Katleen, Bostoen, Tom and Vandaele, Piet (2004) Partial crosstalk cancellation for upstream VDSL. Eurasip Journal on Advances in Signal Processing, 10 1520-1535. doi:10.1155/S1110865704309273


Author Cendrillon, Raphael
Moonen, Marc
Ginis, George
Van Acker, Katleen
Bostoen, Tom
Vandaele, Piet
Title Partial crosstalk cancellation for upstream VDSL
Journal name Eurasip Journal on Advances in Signal Processing   Check publisher's open access policy
ISSN 1110-8657
1687-6172
Publication date 2004-08-01
Sub-type Article (original research)
DOI 10.1155/S1110865704309273
Open Access Status DOI
Volume 10
Start page 1520
End page 1535
Total pages 16
Place of publication Heidelberg, Germany
Publisher SpringerOpen
Language eng
Abstract VDSL is the next step in an on-going evolution of DSL systems. In VDSL downstream data rates of up to 52 Mbps are supported by operating over short loop lengths and using frequencies up to 12 MHz. Unfortunately, such high frequencies result in crosstalk between pairs within a binder-group. Many crosstalk cancellation techniques have been proposed to address this. Whilst these schemes lead to impressive performance gains, their complexity grows with the square of the number of lines within a binder. In binder groups which can carry up to hundreds of lines, this complexity is outside the scope of current implementation. In this paper we investigate partial crosstalk cancellation for VDSL. The majority of the detrimental effects of crosstalk are typically limited to a small sub-set of lines and tones. Furthermore, significant crosstalk is often only seen from neighbouring pairs within the binder configuration. We present a number of schemes which exploit these properties to reduce the complexity of crosstalk cancellation. These schemes are shown to achieve the majority of the performance gains of full crosstalk cancellation with significantly reduced run-time complexity. We present both the optimal scheme for partial crosstalk cancellation which has a high initialisation complexity and a number of low-complexity schemes which achieve near-optimal performance in a wide range of scenarios.
Keyword VDSL
Partial crosstalk cancellation
Complexity
Line selection
Tone selection
Optimal
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Information Technology and Electrical Engineering Publications
 
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Created: Tue, 15 Feb 2005, 10:00:00 EST by Raphael Jean Cendrillon on behalf of School of Information Technol and Elec Engineering