Title :
On (power-) line defined PLC system
Author :
Weilin Liu ; Bumiller, G. ; Hongjian Gao
Author_Institution :
China Electr. Power Res. Inst. (CEPRI), Beijing, China
fDate :
March 30 2014-April 2 2014
Abstract :
This paper discusses a new concept which entails PLC nodes to on-line determine their working frequency that best fits the local conditions. This optimization often is inevitable for PLC to establish reliable link in many situations. For access network a wide frequency range is proposed for this frequency optimization which exceeds current narrow band and broadband frequency separation. As an example a wide band digital front end design combined with equivalent complex base-band technique is presented which is able to cover a frequency range between 150 kHz-10MHz and support OFDM signal with various bandwidths. A possibility to use a short preamble signal for initial frequency selection has been discussed.
Keywords :
carrier transmission on power lines; frequency estimation; optimisation; radio access networks; telecommunication network reliability; OFDM signal; PLC nodes; access network; broadband frequency separation; equivalent complex base-band technique; frequency 150 kHz to 10 MHz; frequency optimization; initial frequency selection; link reliability; narrow band separation; on line defined PLC system; online working frequency determination; short preamble signal; wide band digital front end design; Attenuation; Bandwidth; Broadband communication; OFDM; Power line communications; Receivers; Time-frequency analysis; OFDM; PLC; digital front end; equivalent complex baseband; frequency learning; multi frequency network; preamble;
Conference_Titel :
Power Line Communications and its Applications (ISPLC), 2014 18th IEEE International Symposium on
Conference_Location :
Glasgow
DOI :
10.1109/ISPLC.2014.6812353
