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Part B: Digital Modulation Below is the block diagram of a 16 Quadrature Amplitude Modulation (16-QAM) modulation and demodulation system. Comm Sources: Bernoull Binary Generator Digital Baseband Modulation 16-QAM Waveform Emorrate

calculation Channel Additive White Gaussion Noise (AWGN) Constellation [TXQ Demodulator 16-QAM Constellation (RX 1) Develop a Simulink model (or Mallab codes) of the modulation and demodulation system above at the digital baseband. 2) Analyse the signals at the output of all the blocks, in either time or frequency domain or both domains. 3) Analyse the constellation diagram at both the transmitter (TX) and reviewer (RX) at different signal to noise ratio (Eb/No) at the channel, from-10 dB to 40 dB at a step of 5 dB. Comment on the results. 4) Analyse the bit error rate (BER) calculation for different signal to noise ratio SNR (Eb/No) at the channel, from -10 dB to 40 dB at a step of Comment on the results. 5) Use your results from step 2), 3) and 4) to explain what is the benefits and disadvantages of the modulation scheme above.

Fig: 1