Parts a and b of Figure show the block diagrams of the transmitter and receiver of an OFDM system, formulated on the basis of digital signal processing. It is informative to construct an analog interpretation of the OFDM system, which is the objective of this problem.
a. Construct the analog interpretations of parts a and b in Figure.
b. With this construction at hand, compare the advantages and disadvantages of the digital and analog implementations of OFDM.