International Journal of Digital Multimedia Broadcasting
Volume 2008 (2008), Article ID 428037, 8 pages
doi:10.1155/2008/428037
Research Article

Stationary Interference Cancellation in Upstream Coordinated DSL Using a Turbo-MMSE Receiver

Issam Wahibi,1,2 Meryem Ouzzif,1 Jérôme Le Masson,1 and Samir Saoudi2

1Orange Laboratories, 2 avenue Pierre Marzin, 22307 Lannion, France
2Département Signal et Communications, INSTITUT Telecom, TELECOM Bretagne, Technopôle Brest-Iroise, CS 83818, 29238 Brest Cedex 3, France

Received 1 April 2008; Accepted 19 July 2008

Academic Editor: Marina Mondin

Copyright © 2008 Issam Wahibi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We investigate the scenario of an upstream coordinated DSL transmission in presence of spatial-correlated noise. Joint signal processing helps mitigate this noise and reduce internal interference effects between coordinated users. We propose to couple noise whitening with a mean-squared error iterative receiver in order to approach the matched filter bound of the DSL coordinated system. The convergence of the iterative scheme in this scenario is predicted using EXIT charts under realistic transmission conditions.