The easy button to interface to the AC
plug would be to pick up some old power line telephone extenders from Radio
Shack and cut them open. You could then use the basic RX and TX cards.
From: address@hidden
[mailto:address@hidden On Behalf Of George Nychis
Sent: Thursday, February 16, 2012
12:49 PM
To: Tom Rondeau
Cc: GNURadio Discussion List
Subject: Re: [Discuss-gnuradio]
Reminder about call today
Interesting thought. Powerline communications have been discussed for
quite a while, but they tend to be horrible channels (old copper, long
distances, bad shielding, etc.). So yes, I'd expect OFDM for the equalization
and multipath (or 'echos' in this case) issues and heavy channel coding are
required.
My main question regarding this topic is to figure out what would be
necessary to create a test bed to try it out on? Obviously, we aren't going to
stick the Rx/Tx port of the USRP into a wall socket :)
Trust me, I am far from an EE person, so ignore any outrageous
misunderstandings ;) I guess this will start as more of question:
since we can't stick Rx/Tx directly in to a wall socket... what actually
needs to happen to stick an Rx/Tx in to a wall socket? I'm guessing a
bunch of filtering goes on with the actual power, but beyond that I have no
clue. I guess part of this is I was wondering if it is feasible to
develop a frontend to stick a USRP in to a wall socket. Then, due to the
horrible channels you mention, I think it makes for an interesting/feasible 3
month project to get communication through to power line with those channels. Even
measurement on what those channels are like would be interesting, and I know
whatever might come out of this would really open up the ability for the
academic community to directly research power line networks.
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