About PLC (Power Line Communications)

Phrases like "Invisible Wiring Communication" and "No New Wire Communication" refer to Power Line Communication (PLC).  PLC utilizes infrastructure present almost everywhere, both in the indoor and outdoor environments, eliminating the unnecessary expense and inconvenience of new wires or antenna-based networks.

While many have attempted to use the power line as a communication medium in the past, it has not lived up to expectations, earning a reputation for questionable reliability. The fact is that the power line is an extremely difficult and noisy communications medium, characterized by several unpredictable and strong forms of interference. Every appliance that is connected to an outlet contributes line interference, which can be approximated as Additive White Gaussian Noise (AWGN). Dimmer switches, motorized electrical appliances and computers, also introduce pulse interference into the communications environment, making it a perilous channel for non-robust communications. Fast fading also corrupts power line communicationd channels, which have non-flat frequency responses and suffer from unpredictable jamming and the presence of carrier wave signal interference. All the forgoing make it exceedingly difficult to ensure reliable power line communication and help explain the difficulties technologies have had in delivering reliable power line communication.

Reliable, low cost Power Line Communication (�PLC�) technology enables ubiquitous narrowband and broadband applications for the residential and business markets. PLC opens a whole new world of business opportunities to appliance and electric devices manufacturers, utilities and service providers, with no need to run and install new cables or jacks. Every electrical outlet is now a communication node, part of a PLC network.

Power line communication and networking provides the benefits of having a wired connection while maintaining the flexibility of ubiquitous connection.

Yitran�s patented and patent pending solutions to the problems of power line communication overcome the interference and reliability problems that plague the power line and offer superior performance over this harsh medium.