Advanced signal processing for PLCs: Wavelet-OFDM

Author

Galli, S. ; Koga, H. ; Kodama, N.

Author_Institution

Panasonic, San Jose, CA

fYear

2008

fDate

2-4 April 2008

Firstpage

187

Lastpage

192

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISPLC.2008.4510421

Filename

4510421