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

Recommended by Marina Mondin

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.