METHOD FOR THE TRANSMISSION (MODULATION) AND RECEPTION (DEMODULATION) OF SIGNALS IN COMMUNICATION SYSTEMS WITH DFT-BASED MULTICARRIER MODULATION AND TRANSMULTIPLEXERS BASED ON SINE AND/OR COSINE MODULATED FILTER BANKS, AND TRANSMITTING AND RECEIVING

摘要

The invention relates to a method for the transmission and reception of a multicarrier signal. According to the invention, the following steps are performed in the transmitter, namely: processing of the input subcarrier signals using a rapid algorithm obtained from a synthesis filter bank, in which each of the filters is obtained by means of a cosine, sine or mixed trigonometric modulation applied to a prototype filter; optionally implementation of the inverse discrete Fourier transform (IFFT); and parallel/series conversion. In addition, the following steps are performed in the receiver, namely: series/parallel conversion; implementation of the discrete Fourier transform (FFT); frequency-domain equalizer (FEQ); implementation of the inverse discrete Fourier transform (IFFT) if this was not performed in the transmitter; and processing of signals using a rapid algorithm obtained from an analysis filter bank, in which each of the filters is obtained by means of a cosine, sine or mixed trigonometric modulation applied to a prototype filter.