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Modelling and Simulation in Engineering
Volume 2012 (2012), Article ID 301012, 7 pages
Research Article

Average Bandwidth Allocation Model of WFQ

Institute of Telecommunications, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovicova 3, 812 19 Bratislava, Slovakia

Received 12 April 2012; Revised 21 October 2012; Accepted 5 November 2012

Academic Editor: Agostino Bruzzone

Copyright © 2012 Tomáš Balogh and Martin Medvecký. 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.


We present a new iterative method for the calculation of average bandwidth assignment to traffic flows using a WFQ scheduler in IP based NGN networks. The bandwidth assignment calculation is based on the link speed, assigned weights, arrival rate, and average packet length or input rate of the traffic flows. We prove the model outcome with examples and simulation results using NS2 simulator.