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Collaborative Spectrum Sensing Optimisation Algorithms for Cognitive Radio Networks
Joint Authors
Imran, Muhammad Ali
Arshad, Kamran
Moessner, Klaus
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-06-07
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Engineering Sciences and Information Technology
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
The main challenge for a cognitive radio is to detect the existence of primary users reliably in order to minimise the interference to licensed communications.
Hence, spectrum sensing is a most important requirement of a cognitive radio.
However, due to the channel uncertainties, local observations are not reliable and collaboration among users is required.
Selection of fusion rule at a common receiver has a direct impact on the overall spectrum sensing performance.
In this paper, optimisation of collaborative spectrum sensing in terms of optimum decision fusion is studied for hard and soft decision combining.
It is concluded that for optimum fusion, the fusion centre must incorporate signal-to-noise ratio values of cognitive users and the channel conditions.
A genetic algorithm-based weighted optimisation strategy is presented for the case of soft decision combining.
Numerical results show that the proposed optimised collaborative spectrum sensing schemes give better spectrum sensing performance.
American Psychological Association (APA)
Arshad, Kamran& Imran, Muhammad Ali& Moessner, Klaus. 2010. Collaborative Spectrum Sensing Optimisation Algorithms for Cognitive Radio Networks. International Journal of Digital Multimedia Broadcasting،Vol. 2010, no. 2010, pp.1-20.
https://search.emarefa.net/detail/BIM-471060
Modern Language Association (MLA)
Arshad, Kamran…[et al.]. Collaborative Spectrum Sensing Optimisation Algorithms for Cognitive Radio Networks. International Journal of Digital Multimedia Broadcasting No. 2010 (2010), pp.1-20.
https://search.emarefa.net/detail/BIM-471060
American Medical Association (AMA)
Arshad, Kamran& Imran, Muhammad Ali& Moessner, Klaus. Collaborative Spectrum Sensing Optimisation Algorithms for Cognitive Radio Networks. International Journal of Digital Multimedia Broadcasting. 2010. Vol. 2010, no. 2010, pp.1-20.
https://search.emarefa.net/detail/BIM-471060
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-471060