Adaptive Radio Resource Allocation in Hierarchical QoS Scheduling for IEEE 802.16 Systems

Hua Wang, Lars Dittmann

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

342 Downloads (Pure)


Future mobile communication systems such as IEEE 802.16 are expected to deliver a variety of multimedia services with diverse QoS requirements. To guarantee the QoS provision, appropriate scheduler architecture and scheduling algorithms have to be carefully designed. In this paper, we propose an adaptive bandwidth distribution algorithm for the aggregate scheduler in a two-level hierarchical scheduler, which can provide more organized service differentiation among different service classes. By taking the backlogged traffic, the spectral efficiency in terms of modulation efficiency, and the QoS satisfaction into account, the proposed algorithm adaptively allocates bandwidth to each service class with the objective of increasing the spectral efficiency while satisfying the QoS requirements. Through system-level simulation, it is shown that the proposed algorithm can adapt to the performance of the class schedulers and distribute the bandwidth among them more efficiently than the conventional schemes.
Original languageEnglish
Title of host publicationProceeding of IEEE GLOBECOM 2007
Place of PublicationWashington, DC, USA
Publication date2007
ISBN (Print)9781424410422
Publication statusPublished - 2007
Event2007 IEEE Global Telecommunications Conference - Washington, United States
Duration: 25 Nov 200730 Nov 2007
Conference number: 50


Conference2007 IEEE Global Telecommunications Conference
CountryUnited States

Bibliographical note

Copyright: 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE


Dive into the research topics of 'Adaptive Radio Resource Allocation in Hierarchical QoS Scheduling for IEEE 802.16 Systems'. Together they form a unique fingerprint.

Cite this