Optimal Improper Gaussian Signaling for Physical Layer Security in Cognitive Radio Networks
Joint Authors
Oliveira, Guilherme
Fernández, Evelio
Mafra, Samuel
Montejo-Sánchez, Samuel
Azurdia-Meza, César
Source
Security and Communication Networks
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-25
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
The next generations of wireless communications are expected to have great demand for security and spectrum efficiency, and the current secrecy solutions may not be enough.
In this paper we propose an optimization framework to address the physical layer security in cognitive radio networks when the secondary users employ improper Gaussian signaling.
We resort to genetic algorithms to find optimal values of the secondary transmit power and the degree of impropriety, simultaneously.
Then, two different problems regarding the system performance are solved: minimizing the secrecy outage probability and maximizing the secondary achievable rate.
In both problems we evaluate, besides the secrecy outage probability, the effective secure throughput and the secure energy efficiency of the system as well.
The results show that the secondary network using improper signaling outperforms conventional proper signaling in terms of secrecy outage probability and the effective secure throughput, while in terms of the secure energy efficiency, adopting proper signals attains better performance than improper ones.
American Psychological Association (APA)
Oliveira, Guilherme& Fernández, Evelio& Mafra, Samuel& Montejo-Sánchez, Samuel& Azurdia-Meza, César. 2018. Optimal Improper Gaussian Signaling for Physical Layer Security in Cognitive Radio Networks. Security and Communication Networks،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1214491
Modern Language Association (MLA)
Oliveira, Guilherme…[et al.]. Optimal Improper Gaussian Signaling for Physical Layer Security in Cognitive Radio Networks. Security and Communication Networks No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1214491
American Medical Association (AMA)
Oliveira, Guilherme& Fernández, Evelio& Mafra, Samuel& Montejo-Sánchez, Samuel& Azurdia-Meza, César. Optimal Improper Gaussian Signaling for Physical Layer Security in Cognitive Radio Networks. Security and Communication Networks. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1214491
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214491