An experimental validation of an online adaptive cooperation scheme for spectrum sensing
Author
Yarkan, S.
Töreyin, B. U.
Qaraqe, K. A.
Çetin, A. Enis
Date
2011-05Source Title
18th International Conference on Telecommunications, ICT 2011
Publisher
IEEE
Pages
226 - 231
Language
English
Type
Conference PaperItem Usage Stats
162
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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.
Keywords
Adaptive data fusionCognitive 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