Journal of information and communication convergence engineering

  • 제9권3호
  • /
  • Pages.251-255
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  • 2011
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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Adaptive Spectrum Sensing for Throughput Maximization of Cognitive Radio Networks in Fading Channels

  • Ban, Tae-Won (Mobile Laboratory, KT) ;
  • Kim, Jun-Su (Department of Electrical and Computer Engineering, University of British Columbia) ;
  • Jung, Bang-Chul (Dept. of Information and Communication Engineering, Collage of Marine Science and the Institute of Marine Industry, Gyeongsang National University)
  • 투고 : 2011.03.03
  • 심사 : 2011.04.06
  • 발행 : 2011.06.30
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초록

In this paper, we investigate an adaptive cognitive radio (CR) scheme where a sensing duration and a detection threshold for spectrum sensing are adaptively determined according to the channel condition in a fading channel. We optimize the sensing duration and detection threshold of a secondary user to maximize the performance of the secondary user guaranteeing a primary user's secure communication. In addition, we analyze the effect of channel fading on the optimization of the sensing duration and detection threshold. Our numerical results show that the performance of the adaptive CR scheme can be drastically improved if a secondary user can take the advantage of channel information between primary and secondary users.

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참고문헌

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