Question

Rames of 1 Kb are sent over a 1 Mbps channel using a geostationary satellite whose propagation time from earth is 270 ms. Acknowledgments are always piggybacked onto data frames and headers are very short. Three - bit sequence numbers are used. What is the maximum achievable channel utilization for:

(a) Stop-and-wait

(b) Protocol 5

(c) Protocol 6

Answer 1

a) The maximum channel utilization for stop and wait protocol is 0.18%

b) The maximum channel utilization for protocol 5 (Go-back) is 1.29%

c) The maximum channel utilization for protocol 6 (Selective repeat) is 0.74%

Step-by-step explanation: