TCP Congestion
a) Describe BRIEFLY the Additive-increase-multiplicative-decrease strategy used by the TCP congestion control algorithm.
b) How is TCP fair? Using a diagram, prove that the AIMD algorithm is fair and that the AIAD algorithm is unfair.
c) Describe the pros and cons of using a multiplicative factor of 0.75 instead of the 0.5 used by TCP. Which factor (0.75 or 0.5) would be better for a multimedia application and why?