PLENARY V: Signal processing and spectrum management in multi-user wireline (xDSL) systems

In modern Digital Subscriber Line (DSL) systems, multi-user crosstalk is the major source of performance degradation. Multi-user techniques for mitigating crosstalk are based on the coordination of the different users in the network, and this can be done on either a spectral or signal level. We will focus on spectra coordination (`dynamic spectrum management´, DSM) as well as multi-user signal coordination (crosstalk cancellation and precoding), as well as on the combination of DSM with partial cancellation, and present optimization procedure as well as simulation results for practical scenarios.