Physical layer security for cooperative NOMA systems

J Chen, L Yang, MS Alouini - IEEE Transactions on Vehicular …, 2018 - ieeexplore.ieee.org
In this correspondence, we investigate the physical layer security for cooperative
nonorthogonal multiple access (NOMA) systems, where both amplify-and-forward (AF) and …

Optimal relay selection for secure NOMA systems under untrusted users

K Cao, B Wang, H Ding, T Li… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users in the
same frequency band to improve the spectral efficiency. Whereas a security flaw emerges in …

Secrecy-enhancing design for cooperative downlink and uplink NOMA with an untrusted relay

L Lv, H Jiang, Z Ding, L Yang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
We investigate a secrecy-enhancing design for cooperative downlink and uplink non-
orthogonal multiple access (NOMA) transmissions with an untrusted relay. A source uses the …

Enhancing physical layer security with artificial noise in large-scale NOMA networks

C Gong, X Yue, Z Zhang, X Wang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper investigates the secrecy outage performance for a large-scale downlink system
with full-duplex (FD) non-orthogonal multiple access (NOMA) transmission aided by artificial …

Secrecy outage analysis for cooperative NOMA systems with relay selection schemes

H Lei, Z Yang, KH Park, IS Ansari, Y Guo… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
This paper considers the secrecy outage performance of a multiple-relay assisted non-
orthogonal multiple access (NOMA) network over Nakagami-m fading channels. Two time …

Security at physical layer in NOMA relaying networks with cooperative jamming

B Chen, R Li, Q Ning, K Lin, C Han… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this letter, we consider a non-orthogonal multiple access (NOMA) network with a half-
duplex (HD) decode-and-forward (DF) relay to improve physical layer security (PLS) of two …

Secrecy analysis for cooperative NOMA networks with multi-antenna full-duplex relay

Y Cao, N Zhao, G Pan, Y Chen, L Fan… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
In a downlink non-orthogonal multiple access (NOMA) system, the reliable transmission of
cell-edge users cannot be guaranteed due to severe channel fading. On the other hand, the …

Physical-layer security of NOMA systems under untrusted users

BM ElHalawany, K Wu - 2018 IEEE global communications …, 2018 - ieeexplore.ieee.org
One of the main characteristics of the power-domain non-orthogonal multiple access
(NOMA) technique is the possibility of users to decode the messages of the other paired …

Secure transmission designs for NOMA systems against internal and external eavesdropping

K Cao, B Wang, H Ding, T Li, J Tian… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users in the
same resource block to improve the spectral efficiency. Whereas due to the resource …

Secrecy analysis of ambient backscatter NOMA systems under I/Q imbalance

X Li, M Zhao, Y Liu, L Li, Z Ding… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this correspondence, we investigate the reliability and the security of the ambient
backscatter (AmBC) non-orthogonal multiple access (NOMA) systems, where the source …