Intelligent reflecting surface assisted untrusted NOMA transmissions: a secrecy perspective

D Wang, X Li, Y He, F Zhou, Q Wu - Science China Information Sciences, 2023 - Springer
In this paper, we investigate the intelligent reflecting surface (IRS) assisted secure
transmissions for the untrusted non-orthogonal multiple access (NOMA) network threatened …

Secure energy efficiency for NOMA based cognitive radio networks with nonlinear energy harvesting

D Wang, S Men - IEEE Access, 2018 - ieeexplore.ieee.org
In order to improve the spectrum efficiency and secrecy energy efficiency, in this paper, we
propose a non-orthogonal multiple access (NOMA)-based secure scheme for cognitive radio …

Exploiting uplink NOMA to improve sum secrecy throughput in IoT networks

Z Xiang, W Yang, Y Cai, Y Cheng… - Wireless …, 2018 - Wiley Online Library
This paper exploits nonorthogonal multiple access (NOMA) to enhance the uplink secure
transmission in Internet of Things (IoT) networks. Considering the different intercept ability of …

Secure backscatter communications in multi-cell NOMA networks: Enabling link security for massive IoT networks

WU Khan, J Liu, F Jameel, MTR Khan… - … -IEEE Conference on …, 2020 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) and backscatter communications are considered to
be promising technologies due to their applications in large-scale Internet-of-things (IoT) …

Enhancing physical layer security via a UAV friendly jammer for NOMA‐based IoT systems with imperfect CSI

Y Chen, Z Zhang, B Li - Transactions on Emerging …, 2021 - Wiley Online Library
In this article, we investigate physical layer security in downlink Internet of Things networks
under imperfect channel state information (CSI), in which a controller (Alice) intends to serve …

Power allocation and equivalent transmit fda beamspace for 5G mmwave noma networks: Meta-heuristic optimization approach

SY Nusenu, S Huaizong, P Ye - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Most of the existing works in millimeter wave (mmWave) and non-orthogonal multiple access
(NOMA) communications (mmWave NOMA) employs phased array (PA) antennas which …

Secure transmission via beamforming optimization for NOMA networks

Y Cao, N Zhao, Y Chen, M Jin, Z Ding… - IEEE Wireless …, 2019 - ieeexplore.ieee.org
Owing to the eminent performance gain, non-orthogonal multiple access (NOMA) has been
regarded as a promising approach to achieve high throughput and low latency for the next …

Artificial noise aided secure transmission for active RIS-aided NOMA networks

F Yang, W Guo, J Dai - IEEE Access, 2023 - ieeexplore.ieee.org
A secrecy rate maximization problem for active reconfigurable intelligent surface (RIS) aided
non-orthogonal multiple access networks has been studied in this paper. Assuming that the …

NOMA-assisted multiple access scheme for IoT deployment: Relay selection model and secrecy performance improvement

DT Do, MS Van Nguyen, TA Hoang, M Voznak - Sensors, 2019 - mdpi.com
In this paper, an Internet-of-Things (IoT) system containing a relay selection is studied as
employing an emerging multiple access scheme, namely non-orthogonal multiple access …

Safeguarding NOMA networks via reconfigurable dual-functional surface under imperfect CSI

W Wang, W Ni, H Tian, Z Yang… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
This paper investigates the use of the reconfigurable dual-functional surface to guarantee
the full-space secure transmission in non-orthogonal multiple access (NOMA) networks. In …