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A RED modified weighted moving average for soft real-time application

Joanna Domańska;  Adam Domański;  Dariusz R. Augustyn;  Jerzy Klamka — 2014

International Journal of Applied Mathematics and Computer Science

The popularity of TCP/IP has resulted in an increase in usage of best-effort networks for real-time communication. Much effort has been spent to ensure quality of service for soft real-time traffic over IP networks. The Internet Engineering Task Force has proposed some architecture components, such as Active Queue Management (AQM). The paper investigates the influence of the weighted moving average on packet waiting time reduction for an AQM mechanism: the RED algorithm. The proposed method for...

The use of a non-integer order PI controller with an active queue management mechanism

Adam Domański;  Joanna Domańska;  Tadeusz Czachórski;  Jerzy Klamka — 2016

International Journal of Applied Mathematics and Computer Science

In this paper the performance of a fractional order PI controller is compared with that of RED, a well-known active queue management (AQM) mechanism. The article uses fluid flow approximation and discrete-event simulation to investigate the influence of the AQM policy on the packet loss probability, the queue length and its variability. The impact of self-similar traffic is also considered.

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