We study secure communications with an untrusted relay for a cooperative non-orthogonal
multiple access (NOMA) system, where a base station (BS) serves a near user (NU) and a …

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 …

In this paper, we analyze the secrecy performance of a cooperative communication wireless
system using nonorthogonal multiple access (NOMA) over α-μ fading channel. A new …

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

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 …

Non-orthogonal multiple access (NOMA) is an important technology for the forthcoming 5G
and beyond. However, its privacy often suffers from adversarial eavesdropping, especially …

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 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 …

A key feature of the non-orthogonal multiple access (NOMA) technique is that users with
better channel conditions have prior information about the messages of other users. The …

In a downlink non-orthogonal multiple access (NOMA) system, the reliable transmission of
cell-edge users cannot be guaranteed. On the other hand, the presence of eavesdroppers …