what are the applications of fourier transform in modulation what are the applications of Fourier transform in modulation ? What are modulation schemes that use Fourier transform? I guess, FSK &amp; PSK are related to Fourier transform since it both have frequency and phase in their names respectively.
OFDM is usually modulated by using an IFFT (or FFT), using the DFT basis vectors for the multi-carrier orthogonality.