Arbitrary partial FEXT cancellation in adaptive precoding for multichannel downstream VDSL

Ido Binyamini; Itsik Bergel; Amir Leshem

doi:10.1109/TSP.2012.2210884

Arbitrary partial FEXT cancellation in adaptive precoding for multichannel downstream VDSL

Ido Binyamini, Itsik Bergel, Amir Leshem

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

In this paper, we present and analyze a simplified, adaptive precoder for arbitrary partial far-end cross talk (FEXT) cancellation in the downstream of multichannel VDSL. The precoder is based on error signal feedback and is computationally efficient. Furthermore, the partial precoding makes it possible to operate the precoder at any desired complexity, and the system's performance increases with any increase in system complexity. Unlike previous works, in which each user experienced either complete FEXT cancellation or no cancellation at all, the presented precoder can mitigate the FEXT from any desired subset of interfering users for each user. We derive sufficient conditions for convergence of the adaptive precoder, for any partial cancellation scheme, and provide closed form steady state error analysis. The precoder's performance and convergence properties are also demonstrated through simulations.

Original language	English
Article number	6256755
Pages (from-to)	5754-5763
Number of pages	10
Journal	IEEE Transactions on Signal Processing
Volume	60
Issue number	11
DOIs	https://doi.org/10.1109/TSP.2012.2210884
State	Published - 2012

Bibliographical note

Funding Information:
Manuscript received July 13, 2011; revised February 27, 2012; accepted July 16, 2012. Date of publication August 01, 2012; date of current version nulldate. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Suleyman S. Kozat. This research was supported by the Israel Ministry of Labor, Trade and Commerce, as part of the iSMART consortium. Some of the results were presented at IEEE Sensor Array Multichannel Signal Processing Workshop (SAM), Israel, October 2010 [1].

Funding

Manuscript received July 13, 2011; revised February 27, 2012; accepted July 16, 2012. Date of publication August 01, 2012; date of current version nulldate. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Suleyman S. Kozat. This research was supported by the Israel Ministry of Labor, Trade and Commerce, as part of the iSMART consortium. Some of the results were presented at IEEE Sensor Array Multichannel Signal Processing Workshop (SAM), Israel, October 2010 [1].

Funders	Funder number
Israel Ministry of Labor, Trade and Commerce

Keywords

Adaptive filters
DSL
MIMO

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10.1109/TSP.2012.2210884

Cite this

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abstract = "In this paper, we present and analyze a simplified, adaptive precoder for arbitrary partial far-end cross talk (FEXT) cancellation in the downstream of multichannel VDSL. The precoder is based on error signal feedback and is computationally efficient. Furthermore, the partial precoding makes it possible to operate the precoder at any desired complexity, and the system's performance increases with any increase in system complexity. Unlike previous works, in which each user experienced either complete FEXT cancellation or no cancellation at all, the presented precoder can mitigate the FEXT from any desired subset of interfering users for each user. We derive sufficient conditions for convergence of the adaptive precoder, for any partial cancellation scheme, and provide closed form steady state error analysis. The precoder's performance and convergence properties are also demonstrated through simulations.",

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author = "Ido Binyamini and Itsik Bergel and Amir Leshem",

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N2 - In this paper, we present and analyze a simplified, adaptive precoder for arbitrary partial far-end cross talk (FEXT) cancellation in the downstream of multichannel VDSL. The precoder is based on error signal feedback and is computationally efficient. Furthermore, the partial precoding makes it possible to operate the precoder at any desired complexity, and the system's performance increases with any increase in system complexity. Unlike previous works, in which each user experienced either complete FEXT cancellation or no cancellation at all, the presented precoder can mitigate the FEXT from any desired subset of interfering users for each user. We derive sufficient conditions for convergence of the adaptive precoder, for any partial cancellation scheme, and provide closed form steady state error analysis. The precoder's performance and convergence properties are also demonstrated through simulations.

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Arbitrary partial FEXT cancellation in adaptive precoding for multichannel downstream VDSL

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