I'm trying to design a circuit to transmit data over the power lines. The data I'm trying to send is real time FFT of about 100k samples per second, for 32bit data this comes to about 3.2Mbit data per second.
I have found various ICs that implement a PLC communication front-end but the maximum speed they can deliver is about 500k baud/sec. Now I know there are various Ethernet power line communication modules available commercially, so my question is: how is this implemented if not with a dedicated IC.
I was unable to find any specific information about this on the web. Have not searched for books yet though. Do they use specialized ICs not available to the general public?