Crosstalk cancellation in upstream coordinated DSL using an iterative MMSE receiver

Authors:
Issam Wahibi;Meryem Ouzzif;Jérôme Le Masson;Samir Saoudi
Affiliations:
Orange Labs, Lannion, France and Institut TELECOM, TELECOM Bretagne, UMR CNRS, Lab-STICC, Brest Cedex 3, France and Université européenne de Bretagne, France and;Orange Labs, Lannion, France;Orange Labs, Lannion, France;Institut TELECOM, TELECOM Bretagne, UMR CNRS, Lab-STICC, Brest Cedex 3, France and Université européenne de Bretagne, France
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

In this paper, we address the problem of the presence of spatial correlated noise in upstream coordinated DSL systems. The performance of a minimum mean-squared-error (MMSE) iterative receiver structure without whitening the noise is evaluated. A simplified MMSE receiver based on the approximation of matrix inversion in the iterative process is presented. The convergence of the iterative scheme in this scenario is predicted using EXIT charts under realistic transmission conditions.