Electromagnetic compatibility issues related to Power Line Communications

摘要

This article deals with some restrictions related to the electromagnetic emission issue in the Power Line Communications (PLC). The Homeplug AV specification [1] prohibits transmission on the frequencies used by HAM radio, in order to protect them. This technique, called "static notching", limits the transmit power and consequently the data rate of PLC systems. To limit the number of notched unused frequencies and thus increase the data rate, a cognitive electromagnetic compatibility approach [2] is proposed. Afterwards, are highlighted the limits of such technique.