1) Goertzel algorithm 2) Chirp transform algorithm 3) Verification of signal flow graphs for DIT and DIF FFT algorithm 4) Elapsed CPU time for DFT and FFT computation 5) Alternative IDFT computations

A 16-QAM signal X, whose power is normalized as unity, is transmitted with OFDM over the discrete-time channel model h which has been used in Homework #2 and #3. As depicted in the below figure, the transmitter (TX) is now equipped with an N-point ID

In this letter, we propose a simple orthogonal frequency-division multiplexing (OFDM) scheme for an asynchronous cooperative system, where OFDM is implemented at the source node, and time-reversion and complex conjugation are implemented at the rel