Impulse noise performance of an asymmetrical digital subscriber lines passband transmission system

An analytical method for estimating the bit error probability performance of a quadrature amplitude modulation (QAM) transmission system in the presence of impulse noise is presented. Numerical results are demonstrated, using parameters that are typical of the recently proposed asymmetrical digital subscriber lines (ADSLs) for digital transmission over the local copper telephone loop plant. It is shown that impulse noise can significantly affect the performance of QAM systems, such as the QAM-based ADSL, when they operate on local telephone loops.<>