The capacity of next limited multichannel DSL

In this paper we study the capacity of multipair DSL systems limited by near end crosstalk. We begin by developing a statistical model for cross spectral matrices of the multipair crosstalk. We then compute the capacity for multiple Gaussian interfering signals based on some simplified analytic models. We analyze two specific cases where the number of disturbers is small and large. We also provide some analysis using measured data to demonstrate the gain in coordinating large number of pairs.