Searching better wavelet packet tree for ISI and ICI reduction in WOFDM

Author

Kumbasar, Volkan ; Kucur, Oguz

Author_Institution

Electron. Eng. Dept., Gebze Inst. of Technol., Gebze

fYear

2009

fDate

22-24 April 2009

Firstpage

1

Lastpage

4

Abstract

In this work, better wavelet packet tree structures are searched to reduce the sum of ISI and ICI powers (integrated power) in Daubechies wavelet-based OFDM system over a practical two path low-voltage powerline channel or two way multipath channel. Better wavelet tree structures are obtained by using a brute-force algorithm. Results show that better wavelet packet tree structures perform better than conventional Mallat structures for the same bandwidth occupancy.

Keywords

OFDM modulation; multipath channels; trees (mathematics); wavelet transforms; Daubechies wavelet-based OFDM system; ICI reduction; ISI reduction; Mallat structures; WOFDM; bandwidth occupancy; brute-force algorithm; integrated power; low-voltage powerline channel; multipath channel; wavelet packet tree structures; wavelet tree structures; Bandwidth; Bit error rate; Discrete Fourier transforms; Discrete wavelet transforms; Filter bank; Intersymbol interference; OFDM modulation; Power system modeling; Tree data structures; Wavelet packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium, 2009. WTS 2009

Conference_Location

Prague

ISSN

1934-5070

Print_ISBN

978-1-4244-2588-4

Electronic_ISBN

1934-5070

Type

conf

DOI

10.1109/WTS.2009.5068976

Filename

5068976