Power – Line Communications

This describes in many other forms such as:

• Power –Line networking (PLN).
• Power –Line carrier.
• Power –Line telecommunications.
• Mains Communication
• Power –Line digital subscriber line (PDSL).

In this it carries data on a conductor which is also used simultaneously for AC electric power supply or electric power transmission

For different type of applications a wide range of power line communication are most needed such as getting the internet access for home which is used to called as broadband over power lines (BPL). For which most of the power line communication limit themselves for one certain building and some can cross to another two levels of communication such as the both premises wiring and the distribution network and in these various frequencies and data rates are maintained at certain required situations.

It is operate by mainly adding a modulated carrier signal to the wiring system according to the power line communication types the frequency bands varies according to it basically the power distribution of this system is intended to transfer AC power at various difficult frequencies of 50 or 60 Hz, they have a very limited frequencies to carry high frequencies.

Transmission of radio programs:

In some cases the power line communications are widely used in transmitting the radio programs through the power lines. And when it is used in AM radio bad, it is well known as carrier current system.

High-frequency (≥ 1 MHz):

Depending on the technology various high range frequency spectrum uses large portion of the radio spectrum communication.

Home Network (Large area network –LAN):

Most of the home networks and other various peripheral’s like TV’s, players, etc... And all other entertainment devices which have Ethernet port capability can access. When power line adapters are established with Ethernet connection using the already existed wiring in the home which helps the devices to access the data without any inconvenience of running network cables

Broadband network over the power line:

Broad band over power line is easily stated as BPL is a system which will transmit two-way data over the existing AC MV a medium voltage among transformers in electrical distribution wiring and a AC LV a low voltage among transformer and customer outlets which was typically around 110 to 240V which helps to avoid the expenditure of maintaining a dedicated network of various devices such routers, radios and antennas in wireless network system.

In the broadband network power line the OPERA standard was used mostly by internet service providers in Europe. And in some places like Washington Island of North America and this were more commonly used for smart meters and to manage load on electric distribution.

Automotive uses:

Using Direct current (DC) battery power-line technology enables us to use the communication of data, music, voice and video signals in vehicle network. To overcome the noise and hostile environments they are used to be tailored in the advanced digital communication techniques which are mostly implemented in a small sized silicon devices in this one singled powered line can be used to multiple various independent networks. In these the benefits could be as lower in the cost, weight, ease of installation, and flexible modification.