Crosstalk concellation in upstream coordinated DSL using an iterative MMSE receiver
Résumé
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.