Diffusion Model of a Non-Integer Order PIγ Controller with TCP/UDP Streams |
| |
| Authors: | Dariusz Marek Adam Doma&#x;ski Joanna Doma&#x;ska Jakub Szygu&#x;a Tadeusz Czachrski Jerzy Klamka |
| |
| Institution: | 1.Department of Distributed Systems and Informatic Devices, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland; (D.M.); (A.D.);2.Institute of Theoretical and Applied Informatics, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland; (J.D.); (T.C.); (J.K.) |
| |
| Abstract: | In this article, a way to employ the diffusion approximation to model interplay between TCP and UDP flows is presented. In order to control traffic congestion, an environment of IP routers applying AQM (Active Queue Management) algorithms has been introduced. Furthermore, the impact of the fractional controller and its parameters on the transport protocols is investigated. The controller has been elaborated in accordance with the control theory. The TCP and UDP flows are transmitted simultaneously and are mutually independent. Only the TCP is controlled by the AQM algorithm. Our diffusion model allows a single TCP or UDP flow to start or end at any time, which distinguishes it from those previously described in the literature. |
| |
| Keywords: | active queue management diffusion approximation fractional controller PIγ internet TCP/IP and UDP |
|
|
