In an experiment, the persistent value p is varied as a function of load G, from 1 to 0.5 to 0.1 to 0.01. For what value of G, would you have such a transmission? Is there any specific advantage of having such changes? Be specific in your answer.

What will be an ideal response?


The persistent value p should be carefully selected to reduce the collisions. When
the traffic G is heavy (e.g., > 10), we should choose the small value of p (e.g.,
0.01) so that the packets can be separated enough to reduce the collisions. When
the traffic G is light (e.g., < 0.1), we should choose the large value of p (e.g., 1)
because at this time, it is not necessary to waiting for another additional time.
Similarly, we can appropriately select the value of p between 0.1 and 0.5 when
the traffic is medium.

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