Narrowband interference characteristics of high-speed power line communication based on Wavelet-OFDM

Author

Nakagawa, Kenichi ; Hosoya, Satoshi ; Tokuda, Masamitsu ; Igata, Yuji

Author_Institution

Musashi Inst. of Technol., Tokyo

fYear

2009

fDate

12-16 Jan. 2009

Firstpage

473

Lastpage

476

Abstract

The interference characteristics of a PLC system using wavelet-OFDM were measured when narrowband interference signals were impressed. The results showed that the PHYsical layer (PHY) rate at the all-frequencies band hardly decreased at all at C(Carrier)/I(Interference) of -10 dB or more, but began to decrease rapidly at C/I of -30 dB or less when interference signals were impressed in the frequency band of the PLC signals. In addition, when C/I became -60 dB, the PHY rate at the frequency corresponding to the notch band became about 10 Mbps higher than that at a frequency not corresponding to the notch band. This demonstrates that a wavelet-OFDM PLC system has an excellent interference characteristic, on that is fully on a par with that of an FFT-OFDM PLC system.

Keywords

OFDM modulation; carrier transmission on power lines; fast Fourier transforms; interference (signal); wavelet transforms; FFT; PHYsical layer rate; fast Fourier transform; high-speed power line communication; narrowband interference characteristics; notch band; orthogonal frequency division multiplexing; wavelet-OFDM PLC system; Digital modulation; Discrete wavelet transforms; Interference; Modems; Narrowband; OFDM; Physical layer; Power line communications; Programmable control; Quadrature amplitude modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2009 20th International Zurich Symposium on

Conference_Location

Zurich

Print_ISBN

978-3-9523286-4-4

Type

conf

DOI

10.1109/EMCZUR.2009.4783493

Filename

4783493