“Power line communications (PLC) is a global technology with worldwide interest in its development. In its simplest terms, PLC modulates communication signals over existing power lines. This enables devices to be networked without introducing any new wires or cables. This capability is extremely attractive across a diverse range of applications that can leverage greater intelligence and efficiency through networking.”
- Texas Instruments.
Introduction:
Let me start with a question and provide you a relevant answer to this:
Why Power Line Communication became important?
Power line Communication is currently emerging technology that is consequently attracting many researchers. Digital communications over power lines is a very old idea that was introduced back at the early 1920s. Many patents were filed in this area. Since then, all the utility companies around the world are successfully using this technology for metering, control and maintenance.
The liberalizations of telecommunications and the deregulation of electric utilities also added new dimensions to the potential application of the electricity infrastructure.
Recently, there is being a vast growth and a rising interest in exploiting the power grid to provide broadband Internet access to residential customers, offices and industries. The most astonishing aspect of this idea is the presence of infrastructure that is in place for power distribution, and the rise of multimedia services over it could be much more valued than any existing wired alternative. For example, if we try to rebuild the whole transmission system using optical fiber instead of cabling it would cost a great deal and would be irrelevant, whereas providing access to the Internet by using the existing cable lines is more beneficial.
As electrical power is indispensible so is the access to the Internet. PLC modems used are normally plugged into an electrical outlet, and the combination of