Patent ID: 7443917
Filing Date: 2008-10-28
Classification: H04L

Abstract:
1. A method for transmission of information data by modulated wavelets over a communication line through a plurality of subchannels, the method comprising the following steps all carried out by a transmitter: (a) obtaining said information data; (b) providing predetermined coefficients representing amplitudes of frequency components of a prototype wavelet; (c) for each sub-channel, generating a signal representing modulated coefficients by multiplying the information data by said amplitudes of frequency components; (d) generating over a time interval T a sequence of L subchannel modulated non-overlapped wavelets by applying an N Inverse Fast Fourier Transform, IFFT, to said signal representing modulated wavelet coefficients; (e) overlapping over the time interval T said sequence of L subchannel modulated non-overlapped wavelets for generating a multi-carrier signal comprising the overlapped wavelets carrying the information data, the overlapping comprising the steps of: