XDSL TECHNIQUES FOR POWER LINE COMMUNICATIONS

摘要

In this paper we consider the power line grid from the secondary (low voltage) transformer coil to the subscriber (input of a building). We study the line characteristics and compare them with the known line characteristics of its competitor ADSL scheme as it is a wired alternative for the local loop access. We have also simulated an ADSL modem and run the simulation for the two different media. The comparison includes data rate, BER and transmitting power and proves that power lines need much more energy per transmitting bit under similar circumstances in order to transmit more than 1 Mbps. This increased energy could probably lead to EMC problems and it is towards this direction that study should continue.