IFFT and FFT
Explore how IFFT converts data symbols into time-domain signals for OFDM transmission and how FFT reverses the process to recover data on reception. Understand the role of modulation types like BPSK and QPSK in shaping signal properties, and see the mathematical operations that enable effective signal processing in digital communication systems.
In the OFDM block diagram at the transmitter side, the next operation is an IDFT.
IFFT
As we have learned earlier, an IDFT (or DFT) is implemented in an efficient manner through an IFFT (or FFT) algorithm. Therefore, a block of ...