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All Journal Perfecting a Video Game with Game Metrics Bulletin of Electrical Engineering and Informatics
Anh-Tu Le
Industrial University of Ho Chi Minh City
Computer Science & IT Electrical & Electronics Engineering

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Journal : Perfecting a Video Game with Game Metrics

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Cooperative underlay cognitive radio assisted NOMA: secondary network improvement and outage performance Dinh-Thuan Do; Chi-Bao Le; Anh-Tu Le
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 5: October 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i5.12451

Abstract

In this paper, a downlink scenario of a non-orthogonal multiple access (NOMA) scheme with power constraint via spectrum sensing is considered. Such network provides improved outage performance and new scheme of NOMA-based cognitive radio (CR-NOMA) network are introduced. The different power allocation factors are examined subject to performance gap among these secondary NOMA users. To evaluate system performance, the exact outage probability expressions of secondary users are derived. Finally, the dissimilar performance problem in term of secondary users is illustrated via simulation, in which a power allocation scheme and the threshold rates are considered as main impacts of varying system performance. The simulation results show that the performance of CR-NOMA network can be improved significantly.
Co-Authors Chi-Bao Le Dinh-Thuan Do Dinh-Thuan Do Dinh-Thuan Do Munyaradzi Munochiveyi