Comparison between wavelet-based and Fourier-based multicarrier UWB systems

Author

Dilmaghani, R. ; Ghavami, M.

Author_Institution

Dept. of Electr. Eng., King´´s Coll. London, London

Volume

2

Issue

2

fYear

2008

fDate

2/1/2008 12:00:00 AM

Firstpage

353

Lastpage

358

Abstract

The use of wavelet transform in multicarrier ultra wideband (UWB) systems is analysed and the results are compared with Fourier-based multicarrier UWB systems. It is well known that convolution in time domain is equivalent to multiplication in frequency domain; however, there is no closed-form expression in the literature for convolution´s counterpart in the wavelet domain. A formula is derived to represent convolution´s counterpart in the wavelet domain. Furthermore, the effects of choice and type of wavelet filters and different decomposition levels are investigated. Finally, a performance comparison of both techniques for IEEE 802.15.3a channel models using IEEE802.15.3a multiband-orthogonal frequency division multiplexing UWB specifications is provided.

Keywords

Fourier transforms; OFDM modulation; personal area networks; ultra wideband communication; wavelet transforms; Fourier-based multicarrier UWB systems; IEEE 802.15.3a channel models; IEEE802.15.3a multiband-orthogonal frequency division multiplexing; ultra wideband system specifications; wavelet filters; wavelet-based multicarrier ultra wideband system;

fLanguage

English

Journal_Title

Communications, IET

Publisher

iet

ISSN

1751-8628

Type

jour

DOI

10.1049/iet-com:20070181

Filename

4479530