Q6. A binary stream [... 001010111101...) is transmitted by Bipolar Return to Zero (RZ) 1- Write the transmitted signal equations So(t), S (t) and S(t). 2- Draw the transmitted waveform. 3- Derive and plot the Power Spectral Density (PSD) of the code. 4- Define the spectral efficiency, and then compute the first null bandwidth and spectral efficiency. 5. Plot the maximum spectral efficiency for signal to noise ratio range from [ 0 - 10 ] dB in step of 2 dB Q6. A binary stream [... 001010111101...) is transmitted by Bipolar Return to Zero (RZ) 1- Write the transmitted signal equations So(t), S (t) and S(t). 2- Draw the transmitted waveform. 3- Derive and plot the Power Spectral Density (PSD) of the code. 4- Define the spectral efficiency, and then compute the first null bandwidth and spectral efficiency. 5. Plot the maximum spectral efficiency for signal to noise ratio range from [ 0 - 10 ] dB in step of 2 dB