Am I Correct? Suppose we have 3-bit sequence number and acknowlwdgements are piggybacked. Then channel utilization is
A. Stop and Wait
=Transmission time/(2*transmission time + 2*propagation time)
B.GBN
=7*transmission time/(2*transmission time + 2*propagation time)
C.SR
=4*transmission time/(2*transmission time + 2*propagation time)
Okay, here is the full question in which i applied above formulas::
Frames of 1000 bits are sent over a 1Mbps link between earth and moon whose propagation delay is 270msec. Headers are very short and acknowledgments are always piggybacked on to data frames.
Three bit sequence numbers are used. What is the maximum channel achievable channel utilization in
A.Stop and wait
B. GBN
C.SR