# (Solved) : P4 1 P4 2 Calculate Value Signal Rate Case Figure 42 Data Rate 1 Mbps C 1 2 Digital Transm Q41382829 . . .

P4-1. P4-2. Calculate the value of the signal rate for each case in Figure 4.2 if the data rate is 1 Mbps and c = 1/2. In a digital transmission, the sender clock is 0.2 percent faster than the receiver clock. How many extra bits per second does the sender send if the data rate is 1 Mbps? 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 P4-3. \$2 PART II PHYSICAL LAYER in the signal level. Compare your guess with the corresponding entry in Table 4.1. a. 00000000 b. 11111111 c. 01010101 d. 00110011 P4-4. Repeat Problem P4-3 for the NRZ-I scheme. P4-5. Repeat Problem P4-3 for the Manchester scheme. P4-6. Repeat Problem P4-3 for the differential Manchester scheme. Figure 4.2 Signal element versus data element 1 data element 1 data element 0 1 1 0 1 1 signal element a. One data element per one signal element (r = 1) 2 signal elements b. One data element per two signal elements (r= 3) 2 data elements : 11 : 0111 4 data elements 1101 1 signal element c. Two data elements per one signal element (r =2) 3 signal elements d. Four data elements per three signal elements (r=3) Show transcribed image text P4-1. P4-2. Calculate the value of the signal rate for each case in Figure 4.2 if the data rate is 1 Mbps and c = 1/2. In a digital transmission, the sender clock is 0.2 percent faster than the receiver clock. How many extra bits per second does the sender send if the data rate is 1 Mbps? 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 P4-3. \$2 PART II PHYSICAL LAYER in the signal level. Compare your guess with the corresponding entry in Table 4.1. a. 00000000 b. 11111111 c. 01010101 d. 00110011 P4-4. Repeat Problem P4-3 for the NRZ-I scheme. P4-5. Repeat Problem P4-3 for the Manchester scheme. P4-6. Repeat Problem P4-3 for the differential Manchester scheme.
Figure 4.2 Signal element versus data element 1 data element 1 data element 0 1 1 0 1 1 signal element a. One data element per one signal element (r = 1) 2 signal elements b. One data element per two signal elements (r= 3) 2 data elements : 11 : 0111 4 data elements 1101 1 signal element c. Two data elements per one signal element (r =2) 3 signal elements d. Four data elements per three signal elements (r=3)