Title :
Advanced signal processing for PLCs: Wavelet-OFDM
Author :
Galli, S. ; Koga, H. ; Kodama, N.
Author_Institution :
Panasonic, San Jose, CA
Abstract :
There are today broadband power line modems available in retail stores that are based on either conventional OFDM or on Wavelet-OFDM. However, the comparison of these two multicarrier modulation techniques in the specific context of power line communications has been seldom addressed in the literature. In this paper, OFDM and Wavelet OFDM are compared by focusing on two important aspects: transmission efficiency and spectral leakage. It will be shown that, for the case of the power line channel, Wavelet OFDM offers substantial advantages over conventional or windowed OFDM.
Keywords :
OFDM modulation; carrier transmission on power lines; modems; signal processing; telecommunication channels; wavelet transforms; PLC; broadband power line modem; multicarrier modulation technique; orthogonal frequency division multiplexing; power line communication; signal processing; wavelet-OFDM; Colored noise; Context; Discrete Fourier transforms; Discrete wavelet transforms; Intersymbol interference; OFDM modulation; Power line communications; Programmable control; Radiofrequency interference; Signal processing;
Conference_Titel :
Power Line Communications and Its Applications, 2008. ISPLC 2008. IEEE International Symposium on
Conference_Location :
Jeju city, Jeju Island
Print_ISBN :
978-1-4244-1975-3
Electronic_ISBN :
978-1-4244-1976-0
DOI :
10.1109/ISPLC.2008.4510421
