Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading
With the rapid development of wireless communications, the radio spectrum is becoming scarce. However, researchers have shown that many portions of licensed spectrum unused for significant periods of time. Recently, cognitive radio has been proposed as a very effective mechanism which allows (CRs) t...
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oai:112.137.131.14:VNU_123-130002020-07-02T04:10:47Z Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading Dinh, Thi Thai Mai Cognitive Radio Users CRs Primary User PU With the rapid development of wireless communications, the radio spectrum is becoming scarce. However, researchers have shown that many portions of licensed spectrum unused for significant periods of time. Recently, cognitive radio has been proposed as a very effective mechanism which allows (CRs) to utilize the idle unused licensed bands. The main challenge for a CR is to detect the existence of Primary User (PU) in order to minimize the interference to it. In this paper, we study the cooperative spectrum sensing under Suzuki composite fading channel which is the mixture of Rayleigh fading channel and Log-normal shadowing channel. Besides, we also concentrate on finding the minimum number of CRs taking part in the collaborative spectrum sensing to avoid the overhead to the network but still guarantee the sensing performance through calculations and numerical results. Our analysis and simulation results suggest that collaboration may improve sensing performance significantly. 2016-08-10T04:17:30Z 2016-08-10T04:17:30Z 2016 Article http://repository.vnu.edu.vn/handle/VNU_123/13000 en application/pdf ĐHCN |
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Cognitive Radio Users CRs Primary User PU Dinh, Thi Thai Mai Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
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With the rapid development of wireless communications, the radio spectrum is becoming scarce. However, researchers have shown that many portions of licensed spectrum unused for significant periods of time. Recently, cognitive radio has been proposed as a very effective mechanism which allows (CRs) to utilize the idle unused licensed bands. The main challenge for a CR is to detect the existence of Primary User (PU) in order to minimize the interference to it. In this paper, we study the cooperative spectrum sensing under Suzuki composite fading channel which is the mixture of Rayleigh fading channel and Log-normal shadowing channel. Besides, we also concentrate on finding the minimum number of CRs taking part in the collaborative spectrum sensing to avoid the overhead to the network but still guarantee the sensing performance through calculations and numerical results. Our analysis and simulation results suggest that collaboration may improve sensing performance significantly. |
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Article |
author |
Dinh, Thi Thai Mai |
author_facet |
Dinh, Thi Thai Mai |
author_sort |
Dinh, Thi Thai Mai |
title |
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
title_short |
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
title_full |
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
title_fullStr |
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
title_full_unstemmed |
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading |
title_sort |
selection of appropriate number of crs in cooperative spectrum sensing over suzuki fading |
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ĐHCN |
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2016 |
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http://repository.vnu.edu.vn/handle/VNU_123/13000 |
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1680967033710182400 |