AT&T unveils AirGig for low-cost wireless broadband along power lines

AT&T on Tuesday announced a low-cost, high-speed wireless internet technology that relies on plastic antennas positioned along medium-voltage power lines.
The signals will not travel through the conductive materials inside the power lines, as with more expensive technologies that were tried and mostly failed a decade ago, AT&T executives said on a conference call.
Instead, the plastic antennas will be attached to the power lines and serve as a mesh network to distribute signals to homes