This letter investigates secure transmission for a cooperative non-orthogonal multiple
access (NOMA) network consisting of multiple near users (NUs), a far user (FU) and an …

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 …

The application of successive interference cancellation (SIC) introduces critical security risks
to cooperative non-orthogonal multiple access (NOMA) systems in the presence of …

The two-way relaying (TWR) technique has been confirmed to achieve higher spectral
efficiency and average sum rate compared with the one-way relaying (OWR) technique in …

This paper analyzes the secrecy capacity of a cooperative relaying system using non-
orthogonal multiple access (NOMA). A new cooperative NOMA scheme is proposed, where …

The secrecy performance of a nonorthogonal multiple access (NOMA) system is examined
in this study by employment of a dual‐hop decode‐and‐forward (DF) relay under existence …

We investigate physical layer security of a downlink cooperative non-orthogonal multiple
access system with an untrusted relay. A friendly jammer (FJ) is employed in order to …

To enhance the secrecy of wireless transmission, we propose a cooperative user relaying
NOMA scheme, in which the near user works in full-duplex mode by transmitting jamming …

This letter investigates a jammer-aided cooperative non-orthogonal multiple access (NOMA)
system, where one relay is used to deliver information and other relays are acted as …

Non-orthogonal multiple access (NOMA) has been considered as a promising solution to
provide spectrally efficient communications in the 5th generation and beyond networks …