To understand the uses of K in Figure 12.3, find the probability that a station can send
Question:
Figure 12.3
a. After one failure.
b. After three failures.
Transcribed Image Text:
Station has Legend a frame to send K : Number of attempts Tp: Maximum propagation time Tr: Average transmission time TR: (Backoff time): R × T,or R × Tfr R : (Random number): 0 to 2K – 1 K = 0 Send the Wait TB frame Wait Choose (2х Тр) [false] ACK К> Ктах K = K + 1 received? [false] [true] [true] Success Abort
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