Question 4: (CLO2-PLO3-C5, 25 marks) Consider your roll number as hex number. If the input to a line coder blockis (RRRR)hex (Here R is LSD of your roll number i.e. roll number 123 may use (3333)hex as input to system). a. Prepare the corresponding waveforms of NRZ, Bipolar AMI, Manchester and 2B1Q encoding schemes. (6) b. Summarize the performance of schemes employed in part a) on the basis of bandwidth efficiency? (6) c. Prepare the corresponding waveforms of binary ASK, FSK and PSK modulators? (6) d. Summarize the performance of binary ASK, FSK, PSK and QAM on the basis of spectral efficiency? (7) R=3 Question 4: (CLO2-PLO3-C5, 25 marks) Consider your roll number as hex number. If the input to a line coder blockis (RRRR)hex (Here R is LSD of your roll number i.e. roll number 123 may use (3333)hex as input to system). a. Prepare the corresponding waveforms of NRZ, Bipolar AMI, Manchester and 2B1Q encoding schemes. (6) b. Summarize the performance of schemes employed in part a) on the basis of bandwidth efficiency? (6) c. Prepare the corresponding waveforms of binary ASK, FSK and PSK modulators? (6) d. Summarize the performance of binary ASK, FSK, PSK and QAM on the basis of spectral efficiency? (7) R=3