In this paper, we consider a non-orthogonal multiple access (NOMA) based mixed free
space optical–radio frequency (FSO-RF) system with imperfect channel state information …

In this paper, we investigate the physical-layer security performance for a reconfigurable
intelligent surface (RIS) assisted free-space optical (FSO) communication-radio frequency …

Although the progress in understanding 5G and beyond techniques such as Non-
Orthogonal Multiple Access (NOMA) and full-duplex techniques has been overwhelming …

In this paper, we aim at tackling the security performances of dual-hop mixed free-space
optical (FSO)/radio frequency (RF) cooperative with the non-orthogonal multiple access …

In this paper, we study the secrecy outage probability (SOP) and the strictly positive secrecy
capacity (SPSC) of cooperative non-orthogonal multiple access (NOMA) system with a …

In this correspondence, we investigate the physical layer security for cooperative
nonorthogonal multiple access (NOMA) systems, where both amplify-and-forward (AF) and …

Both cooperative non‐orthogonal multiple access (NOMA) and physical layer security (PLS)
are promising techniques for future communication systems. This paper investigates the PLS …

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 …

A new design of non-orthogonal multiple access (NOMA) is explored in this study under
secrecy outage probability performance considerations. In particular, the Amplify-and …

In 5G wireless communication networks, Non-Orthogonal Multiple Access (NOMA) has
attracted much attention in recent years. This paper investigates physical layer security of a …