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      • Department of Electrical and Electronics Engineering
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      An experimental validation of an online adaptive cooperation scheme for spectrum sensing

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      Author
      Yarkan, S.
      Töreyin, B. U.
      Qaraqe, K. A.
      Çetin, A. Enis
      Date
      2011-05
      Source Title
      18th International Conference on Telecommunications, ICT 2011
      Publisher
      IEEE
      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.
      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
      Permalink
      http://hdl.handle.net/11693/28378
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/CTS.2011.5898925
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      • Department of Electrical and Electronics Engineering 3601
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