Secure Cooperative Spectrum Sensing for the Cognitive Radio Network Using Nonuniform Reliability
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Both reliable detection of the primary signal in a noisy and fading environment and nullifying the effect of unauthorized users are important tasks in cognitive radio networks.
To address these issues, we consider a cooperative spectrum sensing approach where each user is assigned nonuniform reliability based on the sensing performance.
Users with poor channel or faulty sensor are assigned low reliability.
The nonuniform reliabilities serve as identification tags and are used to isolate users with malicious behavior.
We consider a link layer attack similar to the Byzantine attack, which falsifies the spectrum sensing data.
Three different strategies are presented in this paper to ignore unreliable and malicious users in the network.
Considering only reliable users for global decision improves sensing time and decreases collisions in the control channel.
The fusion center uses the degree of reliability as a weighting factor to determine the global decision in scheme I.
Schemes II and III consider the unreliability of users, which makes the computations even simpler.
The proposed schemes reduce the number of sensing reports and increase the inference accuracy.
The advantages of our proposed schemes over conventional cooperative spectrum sensing and the Chair-Varshney optimum rule are demonstrated through simulations.
American Psychological Association (APA)
Usman, Muhammad& Koo, Insoo. 2014. Secure Cooperative Spectrum Sensing for the Cognitive Radio Network Using Nonuniform Reliability. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1048272
Modern Language Association (MLA)
Usman, Muhammad& Koo, Insoo. Secure Cooperative Spectrum Sensing for the Cognitive Radio Network Using Nonuniform Reliability. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1048272
American Medical Association (AMA)
Usman, Muhammad& Koo, Insoo. Secure Cooperative Spectrum Sensing for the Cognitive Radio Network Using Nonuniform Reliability. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1048272
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048272