Performance evaluation of relay-aided CR-NOMA for beyond 5G communications

DT Do, MS Van Nguyen, F Jameel, R Jäntti… - IEEE …, 2020 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) is considered as one of the most promising
technologies to handle the issue of spectrum scarcity in beyond fifth-generation (5G) …

System performance analysis in cognitive radio-aided NOMA network: An application to vehicle-to-everything communications

CB Le, DT Do, ZD Zaharis, CX Mavromoustakis… - Wireless Personal …, 2021 - Springer
In this study, non-orthogonal multiple access (NOMA) together with cognitive radio (CR)
benefit to the vehicle-to-everything (V2X) as promising application with high spectrum …

[HTML][HTML] Two-way transmission for low-latency and high-reliability 5g cellular v2x communications

DT Do, TTT Nguyen, CB Le, JW Lee - Sensors, 2020 - mdpi.com
As one of key technologies of future networks, vehicle-to-everything (V2X) communication
has recently been proposed to improve conventional vehicle systems in terms of traffic and …

[HTML][HTML] On the performance of underlay device-to-device communications

TN Nguyen, VS Nguyen, HG Nguyen, LT Tu… - Sensors, 2022 - mdpi.com
This paper comprehensively investigates the performance of the D2D underlaying cellular
networks where D2D communications are operated concurrently with cellular networks …

Exploiting secrecy performance of uplink NOMA in cellular networks

MS Van Nguyen, DT Do, F Afghah, SMR Islam… - IEEE …, 2021 - ieeexplore.ieee.org
We study the secrecy transmission of uplink non-orthogonal multiple access (NOMA) with
single antenna and multi-antenna users in presence of an eavesdropper. Two phases are …

Cognitive IoT relaying NOMA networks with user clustering and imperfect SIC

AT Le, DT Do, WT Chang, CT Vu - Peer-to-Peer Networking and …, 2021 - Springer
To implement machine type communications (MTCs) in next generation mobile networks,
Narrowband-Internet of Things (NB-IoT) need be studied. Such NB-IoT has been released …

[PDF][PDF] A Framework of Uplink-Downlink NOMA Protocol for Multiple Access in IoT-Oriented Networks.

AT Le, DT Do - J. Commun., 2021 - jocm.us
With the fast development of wireless systems and internet of things (IoT), non-orthogonal
multiple access (NOMA) has been studied as one of effective schemes to meet increasing …

Employing non-orthogonal multiple access for a dual-hop relaying system with FSO/RF links

ND Nguyen, AT Le - 2021 10th International Conference on …, 2021 - ieeexplore.ieee.org
The system performance is studied in the context of dual-hop relay systems using mixed free-
space optical/radio frequency (FSO/RF) links. Two destinations need assistance from relay …

[HTML][HTML] Transmit antenna selection schemes for NOMA with randomly moving interferers in interference-limited environment

DT Do, TL Nguyen, BM Lee - Electronics, 2019 - mdpi.com
In this paper, non-orthogonal multiple access (NOMA) is studied at downlink under impact of
surrounding interference. This study benefits the practical NOMA system since spatially …

Ergodic capacity computation in cognitive radio aided non-orthogonal multiple access systems

DT Do, CB Le - Bulletin of Electrical Engineering and Informatics, 2022 - beei.org
In this article, the performance of cognitive radio system benefits from non-orthogonal
multiple access (NOMA) scheme. We then examine system metrics to adjust its quality of …