An experimental validation of an online adaptive cooperation scheme for spectrum sensing

Date
2011-05
Advisor
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Source Title
18th International Conference on Telecommunications, ICT 2011
Print ISSN
Electronic ISSN
Publisher
IEEE
Volume
Issue
Pages
226 - 231
Language
English
Type
Conference Paper
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Abstract

Cooperative spectrum sensing methods in the literature assume a static communication scenario with fixed channel and propagation environment characteristics. In order to maintain the level of sensing reliability and performance under changing channel and environment conditions, in this study, an online adaptive cooperation scheme is proposed. Energy detection data from each cooperating sensor are fused together by an adaptive weighted linear combination at the fusion center. Weight update operation is performed online through the use of orthogonal projections onto convex sets (POCS). Also, in this paper, an end-to-end methodology for a flexible experimental setup is proposed. This setup is specifically deployed to emulate the proposed adaptive cooperation scheme for spectrum sensing and validate its practical use in cognitive radio systems. © 2011 IEEE.

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Keywords
Adaptive data fusion, Cognitive radio systems, Experimental setup, Online learning, Projection onto convex sets, Wireless propagation, Cognitive radio, Cognitive systems, Radio, Radio systems, Sensor data fusion, Set theory, Information technology
Citation
Published Version (Please cite this version)