Powerline carrier communication takes advantage of the wires that are already in your walls, your power lines. Music and voice, home control signals, and even computer networking, can all be done through powerlines. This method is most commonly used for sending and receiving home automation signals throughout the house. Small transmitters and receivers are simply plugged in to various outlets and each outlet is given an address. The controller sends signals through the powerlines to turn on or off the light or appliance plugged into the receiver.
Mobility is the main advantage of wireless communication.
High quality sound, computer network data and home control signals are among the signal types suited to this method, with the added advantage of not having to be plugged in to anything. Surfing the Web with the laptop on the back porch, for example, can be done on battery power alone. Installation Much of what is described in this site can be done easily and inexpensively by an average homeowner. Installation of some of the more elaborate systems, however, is best left to professional installers. While integrated home systems are becoming increasingly prevalent, there are very few contractors listed in local phone books as IHS installers.