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The Effect of Misdetection Probability on the Performance of Cooperative-Relaying-Based Cognitive Radio Systems
Joint Authors
Ye, Yuchang
Mao, Minghe
Cao, Ning
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-09
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Telecommunications Engineering
Abstract EN
Cognitive radio (CR) is a promising solution to address the more and more congested radio spectrum.
Cooperative relaying can provide a better transmission performance for the secondary user (SU), while the performance of the primary user (PU, also named licensed user) should be preferentially protected especially when there is misdetection probability.
In this paper, in order to keep the PU away from outage caused by the interference from the SU under a certain signal-to-noise ratio (SNR), the maximum SNR for the SU can be derived by using the rate decaying factor (RDF).
Then, based on the maximum channel gain and the maximum SNR, the outage probability is analyzed using decode-and-forward (DF) relaying and amplify-and-forward (AF) relaying schemes.
Numerical results show that the outage probability decreases when the power allocation factor increases for DF strategy, while the outage probability has error floor when the power allocation factor increases for AF strategy.
And the relaying scheme based on the maximum channel gain outperforms that based on the maximum SNR when the power allocation factor and detection probability are small, while the relaying scheme based on the maximum SNR outperforms that based on the maximum channel gain when the power allocation factor is large.
What is more, AF relaying has better outage performance in the practical implementation.
American Psychological Association (APA)
Cao, Ning& Ye, Yuchang& Mao, Minghe. 2016. The Effect of Misdetection Probability on the Performance of Cooperative-Relaying-Based Cognitive Radio Systems. Mobile Information Systems،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1111357
Modern Language Association (MLA)
Cao, Ning…[et al.]. The Effect of Misdetection Probability on the Performance of Cooperative-Relaying-Based Cognitive Radio Systems. Mobile Information Systems No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1111357
American Medical Association (AMA)
Cao, Ning& Ye, Yuchang& Mao, Minghe. The Effect of Misdetection Probability on the Performance of Cooperative-Relaying-Based Cognitive Radio Systems. Mobile Information Systems. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1111357
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1111357