solve 4-7

VP4-3. Draw the graph of the NRZ-L scheme using each of the following data streams, assuming that the last signal level has been positive. From the graphs guess the bandwidth for this scheme using the average number of changes P4-7. Repeat Problem P4-3 for the 2B1Q scheme, but use the following data streams a. 0000000000000000 c. 0101010101010101 d. 0011001100110011 132 PARTI PHYSICAL LAYER in the signal level. Compare your guess with the corresponding entry ir Table 4.1 a. 00000000 11c. 0101010 d. 0011001 VP4-3. Draw the graph of the NRZ-L scheme using each of the following data streams, assuming that the last signal level has been positive. From the graphs guess the bandwidth for this scheme using the average number of changes P4-7. Repeat Problem P4-3 for the 2B1Q scheme, but use the following data streams a. 0000000000000000 c. 0101010101010101 d. 0011001100110011 132 PARTI PHYSICAL LAYER in the signal level. Compare your guess with the corresponding entry ir Table 4.1 a. 00000000 11c. 0101010 d. 0011001