Abstract
In this paper we analyzed the congestion window distributions in certain basic cases where parallel \TCP\ flows share the networking environment. We derived new analytical distributions for the distribution of generic congestion window values in ŁAN\ and \WAN\ situations. Our distributions fitted well to the distributions we got from direct simulations. We improved the 1 / p rule so that it describes now correctly the whole p=0.0010.05 packet loss range. We used the mean field approximation for situations where exact calculations were not possible. Surprisingly, in these situations the results are almost as good as in the exactly solvable cases. We think, that the main virtue of our work is the new level of precision of the results.
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