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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Main Author: Dinh, Thi Thai Mai
Format: Article
Language:English
Published: ĐHCN 2016
Subjects:
CRs
PU
Online Access:http://repository.vnu.edu.vn/handle/VNU_123/13000
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Institution: Vietnam National University, Hanoi
Language: English
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spelling 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
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Cognitive Radio Users
CRs
Primary User
PU
spellingShingle Cognitive Radio Users
CRs
Primary User
PU
Dinh, Thi Thai Mai
Selection of Appropriate Number of CRs in Cooperative Spectrum Sensing over Suzuki Fading
description 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.
format 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
publisher ĐHCN
publishDate 2016
url http://repository.vnu.edu.vn/handle/VNU_123/13000
_version_ 1680967033710182400