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An Improved Optimal Linear Weighted Cooperative Spectrum Sensing Algorithm for Cognitive Radio Sensor Networks
Joint Authors
Li, Yuehong
Yang, Jian
Wang, Yonghua
Wan, Pin
Wang, Qinruo
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2013, Issue - (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
In order to improve the sensing accuracy of the Cognitive Radio Sensor Networks and reduce the interference to the primary user, this paper proposes an improved optimal linear weighted cooperative spectrum sensing scheme on the assumption that the report channel is not ideal.
Through mathematical modeling, the spectrum sensing problem is ultimately converted into a constrained nonconvex optimization problem, and the chaotic harmony search (CHS) algorithm is to be used to find the optimal weighting vector value.
The simulation results show that the proposed linear cooperative spectrum detection scheme based on the CHS algorithm has better performance than HS, SFLA, EGC, MRC, and MDC algorithm.
In addition, the influence of local noise power, report channel noise power, and report channel gain on the performance of the algorithm is analyzed by simulation.
The results show that local noise power has greater impact on the sensing performance.
American Psychological Association (APA)
Wang, Yonghua& Li, Yuehong& Yang, Jian& Wan, Pin& Wang, Qinruo. 2013. An Improved Optimal Linear Weighted Cooperative Spectrum Sensing Algorithm for Cognitive Radio Sensor Networks. International Journal of Distributed Sensor Networks،Vol. 2013, no. -, pp.1-9.
https://search.emarefa.net/detail/BIM-510811
Modern Language Association (MLA)
Wang, Yonghua…[et al.]. An Improved Optimal Linear Weighted Cooperative Spectrum Sensing Algorithm for Cognitive Radio Sensor Networks. International Journal of Distributed Sensor Networks Vol. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-510811
American Medical Association (AMA)
Wang, Yonghua& Li, Yuehong& Yang, Jian& Wan, Pin& Wang, Qinruo. An Improved Optimal Linear Weighted Cooperative Spectrum Sensing Algorithm for Cognitive Radio Sensor Networks. International Journal of Distributed Sensor Networks. 2013. Vol. 2013, no. -, pp.1-9.
https://search.emarefa.net/detail/BIM-510811
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510811