PLC (Powerline communication) must work with the signal power / low frequency. Because of high frequency radiation can occur from power cable that can disrupt the frequency of others. This is contrary to the provisions of the SNR because of a variety of high interference can occur. The process of achieving a good SNR value of the constraints faced by the emergence of radiation effects power cable. But the problem can be solved with the methods of modulation:
1. Modulation CDM (Code division multiplexing) or spreads spectrum
Signal information can be scattered in a wide frequency range. The level of the signal information is made with very low expectations will not be subject to the noise level is very high in the PLC.
2. Modulation OFDM (Orthogonal Frequency division multiplexing)
Modulation method is quite stable. Modulastion efficiency can reach 5 bits per Hz higher modulation from the other.
Showing posts with label Powerline Communications. Show all posts
Showing posts with label Powerline Communications. Show all posts
Saturday, August 9, 2008
Friday, July 25, 2008
PLC (Powerline communication) Applications
The connection to the Internet as a means to distribute data or voice (VoIP) by using the electricity network.
1.High speed digital Internet
Can be reached and to include all the world, quickly and securely through the Internet connection, e-commerce, e-mail, and e-banking.
2. telephony
The phone connection is very strong using the Internet, which provides security and quality of the conversation clear. We can also send and receive messages from the fax machine.
3.Smart Homes
And the use of the remote control in the home via the Internet allows household appliances such as refrigerators, heating systems and other.
4. Security
A system of security in both visual and motion detector can be monitored or to allow the owner or the safety and security.
5.Health Care Service
The monitoring of every person who needs the help of health PLC through an internet connection.
1.High speed digital Internet
Can be reached and to include all the world, quickly and securely through the Internet connection, e-commerce, e-mail, and e-banking.
2. telephony
The phone connection is very strong using the Internet, which provides security and quality of the conversation clear. We can also send and receive messages from the fax machine.
3.Smart Homes
And the use of the remote control in the home via the Internet allows household appliances such as refrigerators, heating systems and other.
4. Security
A system of security in both visual and motion detector can be monitored or to allow the owner or the safety and security.
5.Health Care Service
The monitoring of every person who needs the help of health PLC through an internet connection.
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