UAV Relaying Enabled NOMA Network With Hybrid Duplexing and Multiple Antennas

This article studies the wireless systems by implementing the full-duplex (FD) unmanned aerial vehicle (UAV) relay to allow two nearby base stations joint communicate to distant users. The non-orthogonal multiple access (NOMA) assisted networks and design of multiple-antenna users are considered in...

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Bibliographic Details
Published inIEEE access Vol. 8; pp. 186993 - 187007
Main Authors Do, Dinh-Thuan, Nguyen, Tu-Trinh Thi, Le, Chi-Bao, Voznak, Miroslav, Kaleem, Zeeshan, Rabie, Khaled M.
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna design
Antennas
Fading channels
full-duplex
imperfect SIC
Mathematical models
NOMA
Non-orthogonal multiple access
Nonorthogonal multiple access
outage probability
Performance degradation
Performance evaluation
Power system reliability
Probability
Relay
Relaying
Relays
Silicon carbide
Throughput
unmanned aerial vehicle
Unmanned aerial vehicles
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Summary:This article studies the wireless systems by implementing the full-duplex (FD) unmanned aerial vehicle (UAV) relay to allow two nearby base stations joint communicate to distant users. The non-orthogonal multiple access (NOMA) assisted networks and design of multiple-antenna users are considered in order to improve the users' performance. To overcome obstacles in transmission environment, such a model of the uplink (UL) and the downlink (DL) relying on UAV relay is suitable to forward signals to far users. Moreover, practical scenario of imperfect successive interference cancellation (SIC) at each receiver is considered as main reason of degraded performance. To evaluate specific performance metric, we derive the closed-form expressions of outage probability. In addition, the throughput in delay-limited transmission mode of UAV relay assisted UL/DL NOMA system is also considered thoroughly. The derivations and results showed that the higher number of antennas at users could effectively improve the system throughput and reduce the outage probability. The numerical simulation results further indicate the effectiveness of the proposed system and the correctness of theoretical analysis.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.3030221