Some people will use baseboard moulding with a carved out area on the back side, or you couldinstall a chair rail moulding to do the same thing. With carpet, it seems to be possible for some to tuck the wires between the carpet and baseboard.
If you have ceiling access, and the joists run front to back, then a ceiling solution would be possible (or just on top of a dropped ceiling)
If you have ceiling access, and the joists run front to back, then a ceiling solution would be possible (or just on top of a dropped ceiling)