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RISS 인기검색어
- 검색키워드
- 저자 : Srilatha M. (검색결과 1 건)
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Srilatha M.,Bharathi A. 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.6
The primary goal of a Cognitive Radio (CR) is to reprocess the spectrum holes and enhance the limited accessibility of radio spectrum capability. A longer sensing period enhances the exposure of the primary signal, but it minimizes the duration of data communication resulting in throughput failure. These problems are addressed upto a certain extent using parallel or Cooperative Spectrum Sensing (CSS) approach. To further enhance the sensing parameters, a Modified Cuckoo Search and Hill climbing (MCSH) algorithm is proposed wherein the sensing process is improved to protect the service quality of a Primary User (PU) and exploitation of white spaces. In this approach, asynchronous cooperative spectrum sensing is used to enhance spectrum sensing in the Cognitive Radio Network (CRN). It discovers the spectrum holes accurately by applying the energy detection parameters. The simulation and analytical results for 100 users explicate that MCSH enhances energy efficiency from 0.06 to 0.09 and throughput from 0.68 to 0.91; minimizes false alarm possibility from 0.22 to 0.07; miss detection possibility from 0.18 to 0.09 and error detection possibility from 0.17 to 0.08. It also improves spectrum hole detection accuracy from 85 to 99%.
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