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International Journal of Digital Multimedia BroadcastingVolume 2010 2010, Article ID 236568, 11 pages

Review Article

BT Innovate and Design, Polaris 134, Adastral Park, Martlesham, Suffolk IP5 3RE, UK

Centre for Computational Science, University College London, 20 Gordon Street, London WC1H 0AJ, UK

Received 2 November 2009; Accepted 6 April 2010

Academic Editor: Fred Daneshgaran

Copyright © 2010 Maziar Nekovee. 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

Cognitive radio is being intensively researched as the enabling technology for license-exempt access to the so-called TV White Spaces TVWS, large portions of spectrum in the UHF-VHF bands which become available on a geographical basis after digital switchover. Both in the US, and more recently, in the UK the regulators have given conditional endorsement to this new mode of access. This paper reviews the state-of-the-art in technology, regulation, and standardisation of cognitive access to TVWS. It examines the spectrum opportunity and commercial use cases associated with this form of secondary access.





Autor: Maziar Nekovee

Fuente: https://www.hindawi.com/



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