The random variable R (Figure 12.13) is designed to give stations different delays when a collision has
Question:
Figure 12.13
a. The first collision.
b. The second collision.
Transcribed Image Text:
Station has a frame to send K = 0 Legend T: Frame average transmission time K : Number of attempts R : (random number): 0 to 2* – 1 Tp: (Backoff time) = R × Tf Wait TB Apply one of the persistence methods seconds Create random Done or [false] Transmit number R collision? and receive [true] [true] Send a Collision K< 15 ? [true] K = K + 1 |[false] jamming signal detected? [false] Abort Success
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