Advances of Research on Low-Voltage Power Line Carrier Communication Technology

The major research directions of low-voltage power line carrier communication technology, including the research achievements in impedance characteristics, attenuation characteristic of signal, noise characteristic and channel models as well as corresponding solving strategies home and abroad, are expounded. The modulation-demodulation technology and networking technology, in which the former mainly includes the related technology of orthogonal frequency division multiplexing (OFDM), that is regarded as the research highlight at present, and the frequency-hoping modulation/ demodulation technology and in the latter the ant colony optimization routing algorithm considering network availability and service requirements of power line carrier communication networks is investigated, are analyzed. The newest results of the research on the specification for power line carrier communication home and abroad are summarized. Finally, according to its present technical condition and the requirements of its development, the research direction and development potential of power line carrier communication technology are discussed and prospected.