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Resource management for QoS support in cognitive radio networks

, Richard Mackenzie, Ulrico Celentano, Arpad Drozdy, Stephanie Leveil, Geneviève Mange, Juan Rico, Arturo Medela, Christophe Rosik
Published in IEEE
Volume: 52
Issue: 3
Pages: 114 - 120

Cognitive radio technology is a key enabler to reuse a finite, scarce, and expensive resource: the radio spectrum. Guaranteeing required levels of QoS to cognitive users and ensuring necessary protection to incumbent users are the two main challenges in opportunistic spectrum access. This article identifies the main requirements and challenges for QoS support in cognitive radio networks. A framework for a twofold cognitive manager is presented; one part managing spectrum availability on longer timescales and the other handling resource management on shorter timescales. This article gives particular focus to the functionalities of the latter cognitive manager related to resource management. Finally, we present a few key scenarios and describe how QoS can be managed with the proposed approach without disturbing the communications of incumbent users.

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JournalData powered by TypesetIEEE Communications Magazine
PublisherData powered by TypesetIEEE
Open AccessNo