A cognitive radio system for home theatre "5+1 audio" surround applications

Authors:
Valeria Orani;Vlad Popescu;Maurizio Murroni
Affiliations:
University of Cagliari, Piazza D'Armi, Cagliari / Italy;Transilvania University of Brasov, Brasov / Romania;University of Cagliari, Piazza D'Armi, Cagliari / Italy
Venue:
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Year:
2009

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Abstract

This paper presents the application of cognitive algorithm for a stream diffusion in home theatre "5+1 audio" surround applications. We develop a wavelet-based method to efficiently estimate the spectrum and utilize its non-interference zones for unlicensed users transmission. We use the wavelet packet decomposition to detect frequency holes through power estimation of the subbands. Finally, we present an application scenario where audio information is coded by AC-3.