Assume a communication media between Sender A and Receiver B has a Bandwidth of 2 Mbps

and the round trip delay between A and B is 20 ms.

a. If the system is using Stop and Wait Protocol determine the efficiency (Link Utilization

Percentage) of the system when each packet size is 1252 bits.

b. Suppose the packet size remains the same and we would like to maximize the efficiency (Link

Utilization Percentage) by using Go-Back-N Protocol. What would be the sliding window

size for both sender and receiver which will provide the maximum Link Utilization

Percentage? If the Transport layer header allows m bits for the sequence number, determine

the minimum number of bits (value of m) require for achieving this maximum Link

Utilization. And also find the sequence number range for this scenario.

c. Now, if the packet size is still the same and we would like to maximize the efficiency (Link

Utilization Percentage) by using Selective Repeat Protocol. What would be the sliding

window size for both sender and receiver which will provide the maximum Link Utilization

Percentage? If the Transport layer header allows m bits for the sequence number, determine

the minimum number of bits (value of m) require for achieving this maximum Link

Utilization. And also find the sequence number range for this scenario.