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Journal of Electrical and Computer Engineering
Volume 2012 (2012), Article ID 374961, 6 pages
http://dx.doi.org/10.1155/2012/374961
Research Article

Analytical Model of a Weighted Round Robin Service System

Department of Telecommunications and Multimedia, Faculty of Electrical Engineering, University of Žilina, 010 26 Žilina, Slovakia

Received 19 September 2011; Revised 13 January 2012; Accepted 27 January 2012

Academic Editor: Yaohui Jin

Copyright © 2012 Vladimir Hottmar and Bohumil Adamec. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents a mathematical description of Weighted Round Robin service strategy, on which basis all the perspective QoS tools that serve to manage congestion in converged packet networks work. On the basis of the presented mathematical model, it is possible to suitably configure the operational parameters (maximum queue length, distribution of the available transfer capacity) of these tools according to required values of packet delays. The implementation of the analytical model is demonstrated on a real network segment using advanced network data traffic emulator.