PLC-xDSL Dynamic Interference Mitigation

In this paper, we will present the results of a field trial based on a PLC to xDSL Dynamic Interference Mitigation (DIM) mechanism. The DIM algorithm, which has been included into the firmware of commercial in-home PLC devices, aims to improve the ability of a peaceful coexistence between PLC and xDSL systems.Further, we will present a laboratory measurement test system, which has been set up to debug and proof the concept of the DIM feature. We will look to the laboratory measurement test results, which have been studied prior rolling out the DIM enabled firmware for the field trial.The results from field study will show that xDSL lines, which are suffering from PLC signal ingress, become more stable and better performing when implementing the DIM mechanism. It will also be shown that only a small percentage of xDSL connected end-users are affected by signal ingress from PLC devices into the phone-line.