Przez sieci telekomunikacyjne, w tym Internet, przepływa w każdej chwili ogromna ilość informacji. Za każdym razem, gdy łącz.ymy się z jakąś stroną internetową, do naszego komputera płynie przez sieć strumień bitów.

In the article we study a model of TCP connection with Active Queue Managementin an intermediate IP router. We use the fluid flow approximation technique to model the interactions between the set of TCP flows and AQM algoithms. Computations for fluid flow approximation model are performed in the CUDA environment.

Vast volumes of data are constantly flowing across telecommunications networks, including the Internet. Every time a user connects to a webpage, a bitstream flows across the network to his or her computer.

The article proposes a model in which Diffusion Approximation is used to analyse the TCP/AQM transmission mechanism in a multinode computer network. In order to prevent traffic congestion, routers implement AQM (Active Queue Management) algorithms. We investigate the influence of using RED-based AQM mechanisms and the fractional controller PI^γ on the transport layer. Additionally, we examine the cases in which the TCP and the UDP flows occur and analyse their mutual influence. Both transport protocols used are independent and work simultaneously. We compare our solution with the Fluid Flow approximation, demonstrating the advantages of Diffusion Approximation.