Title :
Wavelet-based multicarrier transmission over multipath wireless channels
Author :
Negash, B.G. ; Nikookar, H.
Author_Institution :
Fac. of Inf. Technol. & Syst., Delft Univ. of Technol., Netherlands
fDate :
10/12/2000 12:00:00 AM
Abstract :
The conventional Fourier-based complex exponential carriers of a multicarrier system are replaced with orthonormal wavelets in order to reduce the interference. The wavelets are derived from a multistage tree-structured Haar and Daubechies orthonormal quadrature mirror filter (QMF) bank. Compared with the conventional OFDM, it is found that these wavelets reduce the power of ISI and ICI
Keywords :
filtering theory; frequency division multiplexing; interference suppression; intersymbol interference; multipath channels; quadrature mirror filters; wavelet transforms; Daubechies orthonormal QMF bank; ICI reduction; ISI reduction; OFDM; intercarrier interference; interference reduction; multipath wireless channels; multistage tree-structured Haar QMF bank; orthogonal FDM; orthonormal wavelets; quadrature mirror filter bank; wavelet-based multicarrier transmission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001263
