Abstract
This chapter presents the modelling and congestion control of TCP protocols. A nonlinear and a simple linear model are presented to represent TCP including comparative results with NS-2 [1] network’simulator. The simple first order plus dead-time model is selected to design two linear controllers: a generalized predictive controller (GPC) and a PI plus an Smith Predictor controller (SPPI) which are compared to a nonlinear based predictive controller (NBPC). To evaluate the TCP congestion models and controllers, different situations are simulated using NS-2 considering the presence of UDP connections. The obtained results demonstrate that the SPPI offers the best trade-off between complexity and performance to cope with the process dead time and network disturbances.
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Melo, R.C., Farines, JM., Normey-Rico, J.E. (2012). Modelling and Predictive Congestion Control of TCP Protocols. In: Sipahi, R., Vyhlídal, T., Niculescu, SI., Pepe, P. (eds) Time Delay Systems: Methods, Applications and New Trends. Lecture Notes in Control and Information Sciences, vol 423. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25221-1_29
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DOI: https://doi.org/10.1007/978-3-642-25221-1_29
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