Wavelet based OFDM for Power line Communication

Author

Kar, Sagar Chandra ; Hussain, Shiraz ; Fernando, Xavier

Author_Institution

Dept. of Electr. Eng., Ryerson Univ., Toronto, ON, Canada

fYear

2014

fDate

4-7 May 2014

Firstpage

1

Lastpage

4

Abstract

Power line Communication (PLC) system offers cheaper mode of signal communication facilities. However, in fast Fourier transform (FFT) based OFDM system, a cyclic prefix (CP) of the same length as the channel impulse response needs to be added after each symbol to avoid inter symbol and inter carrier interference. This paper investigates the benefits of a filter bank based Wavelet Transform OFDM (WTOFDM) approach that doesn´t need the cyclic prefix and hence has higher throughput. Different types of wavelets based OFDM links are compared by simulation and the bi-orthogonal wavelet is found to be the best for PLC applications.

Keywords

OFDM modulation; carrier transmission on power lines; channel bank filters; fast Fourier transforms; intercarrier interference; intersymbol interference; transient response; wavelet transforms; FFT based OFDM system; PLC system; WTOFDM; biorthogonal wavelet; channel impulse response; cyclic prefix; fast Fourier transform; filter bank based wavelet transform OFDM; intercarrier interference; intersymbol interference; power line communication; signal communication facilities; wavelet based OFDM; FFT; IFFT Inverse discrete wavelet transform (IDWT); OFDM; Power line communication (PLC); Wavelets;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2014 IEEE 27th Canadian Conference on

Conference_Location

Toronto, ON

ISSN

0840-7789

Print_ISBN

978-1-4799-3099-9

Type

conf

DOI

10.1109/CCECE.2014.6901147

Filename

6901147