Joint Time and Power Allocation Algorithm in NOMA Relaying Network
Joint Authors
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-22
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Telecommunications Engineering
Abstract EN
Nonorthogonal multiple access (NOMA) is one of the promising access techniques in 5G network.
The application of relay in NOMA system is a hotspot in recent research.
NOMA-based cooperative relay network can achieve a higher spectral efficiency and a lower outage probability.
In this paper, we analyse the performance of the two-hop DF relay NOMA network scenario, where the number of cell edge users is more than the cell center user, and obtained the closed-form expression of the user's ergodic rates and outage probabilities under the high signal-to-noise (SNR) ratio.
Then, we establish an optimization model to maximize the system rates, and a joint optimal time and power allocation algorithm based on the exhaustive search and the binary algorithm is proposed.
Simulation results show that the proposed scheme can outperform exiting scheme in terms of achieving a higher ergodic sum rate, a lower outage probability under the premise of fairness.
American Psychological Association (APA)
Zhao, Su& Mei, Chuan& Zhu, Qi. 2019. Joint Time and Power Allocation Algorithm in NOMA Relaying Network. Mobile Information Systems،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1193883
Modern Language Association (MLA)
Zhao, Su…[et al.]. Joint Time and Power Allocation Algorithm in NOMA Relaying Network. Mobile Information Systems No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1193883
American Medical Association (AMA)
Zhao, Su& Mei, Chuan& Zhu, Qi. Joint Time and Power Allocation Algorithm in NOMA Relaying Network. Mobile Information Systems. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1193883
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193883