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This paper presents a framework for TCP congestion control, called "Bandwidth-based TCP", which differs from most TCP algorithms by using the bandwidth estimation as the congestion measure to control the window size increment. It tries to predict the equilibrium point of window size then make the congestion window approach this point in a round-trip-time. First of all, an overview of TCP and AQM is introduced. Then, the stability of the mechanisms is also investigated via linearization. Finally, through the simulations, the performance of the proposed scheme is shown to be better than TCP-Vegas under homogeneous and heterogeneous environments.
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