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Mobile Information Systems
Volume 4 (2008), Issue 4, Pages 253-271

QoS Management and Control for an All-IP WiMAX Network Architecture: Design, Implementation and Evaluation

Thomas Michael Bohnert,1 Marco Castrucci,2 Nicola Ciulli,3 Giada Landi,3 Ilaria Marchetti,2 Cristina Nardini,2 Bruno Sousa,5 Pedro Neves,4 and Paulo Simoes5

1Siemens Corporate Technology, Information and Communication IC 2, Munich, Germany
2University of Rome “Sapienza”, Roma, Italy
3Nextworks, Pisa, Italy
4Portugal Telecom Inovação, Aveiro, Portugal
5University of Coimbra, DEI, Pinhal de Marrocos, Polo II, Coimbra, Portugal

Received 24 December 2008; Accepted 24 December 2008

Copyright © 2008 Hindawi Publishing Corporation. 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.


The IEEE 802.16 standard provides a specification for a fixed and mobile broadband wireless access system, offering high data rate transmission of multimedia services with different Quality-of-Service (QoS) requirements through the air interface. The WiMAX Forum, going beyond the air interface, defined an end-to-end WiMAX network architecture, based on an all-IP platform in order to complete the standards required for a commercial rollout of WiMAX as broadband wireless access solution. As the WiMAX network architecture is only a functional specification, this paper focuses on an innovative solution for an end-to-end WiMAX network architecture offering in compliance with the WiMAX Forum specification. To our best knowledge, this is the first WiMAX architecture built by a research consortium globally and was performed within the framework of the European IST project WEIRD (WiMAX Extension to Isolated Research Data networks). One of the principal features of our architecture is support for end-to-end QoS achieved by the integration of resource control in the WiMAX wireless link and the resource management in the wired domains in the network core. In this paper we present the architectural design of these QoS features in the overall WiMAX all-IP framework and their functional as well as performance evaluation. The presented results can safely be considered as unique and timely for any WiMAX system integrator.