Answer Happy

This question is about the communication engineering course. When you solve this question, you must use Simulink. I am NOT going to grade the reports without output of simulink and its code and your comments. Also just handwritten answers will not be evaluated. Do NOT use "berawgn" or similar commands to compute the theoretical BER of the modulations. You can use "sim" command to automatically run the Simulink models under different parameters (See "help sim" in the command window). Also you can take the symbol rate as 1 MHz. a)Plot the spectrums of the BFSK, 4FSK, 8FSK, 16FSK system at E_b/N_0 =12 dB. Compare the theoretical bandwidth with the observed MFSK spectrums. Note: Simulink has MFSK/MQAM/MPSK baseband equivalent Modulator/Demodulator rather than bandpass. Hence, you can treat the center frequency 0 Hz as the carrier frequency. b)For BFSK, 4FSK, 8FSK and 16FSK, vary E_b/N_0 and obtain the P_b vs E_b/N_0 (in dB) curves. (For P_b you need to show both simulated BER and theoretical BER on top of each other). Create a transmission bandwidth, data rate, and BER table for the considered modulations, and comment on your results.