International Journal of Internet, Broadcasting and Communication

  • 제10권3호
  • /
  • Pages.59-64
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  • 2018
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  • 2288-4920(pISSN)
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  • 2288-4939(eISSN)
한국인터넷방송통신학회 (The Institute of Internet, Broadcasting and Communication)
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Silence Reporting for Cooperative Sensing in Cognitive Radio Networks

  • Kim, Do-Yun (Department of Computer Engineering, Ajou University) ;
  • Choi, Young-June (Department of Computer Engineering, Ajou University) ;
  • Choi, Jeung Won (The 2nd R&D Institute, Agency for Defense Development)
  • 투고 : 2018.06.11
  • 심사 : 2018.06.25
  • 발행 : 2018.08.31
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초록

A cooperative spectrum sensing has been proposed to improve the sensing performance in cognitive radio (CR) network. However, cooperative sensing causes additional overhead for reporting the result of local sensing to the fusion center. In this paper, we propose a technique to reduce the overhead of data transmission of cooperative sensing for applying the quantum data fusion technique in cognitive radio networks by omitting the lowest quantized in the local sensed results. If a CR node senses the lowest quantized level, it will not send its local sensing data in the corresponding sensing period. The fusion center can implcitly know that a spectific CR node sensed lowest level if there is no report from that CR node. The goal of proposed sensing policy is to reduce the overhead of quantized data fusion scheme for cooperative sensing. Also, our scheme can be adapted to all quantized data fusion schemes because it only deal with the form of the quantized data report. The experimental results show that the proposed scheme improves performance in terms of reporting overhead.

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참고문헌

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