Due to the inherent broadcast characteristics of wireless communications, the data
transmission is difficult to be shielded from unintended recipients. Secure communications …

Non-orthogonal multiple access (NOMA) has been envisioned as a promising multiple
access technique to improve spectral efficiency and provide massive connectivity in future …

This paper does the study on the performance of the physical layer secrecy of
nonorthogonal multiple access (NOMA) in downlink cooperative. The given system includes …

In this paper, we address the physical-layer security of two-way (bi-directional)
transmissions of two terminals with the help of multiple relay nodes in the presence of an …

Nowadays, security becomes one of the utmost important issues in designing mobile
communication networks, especially for non-orthogonal multiple access (NOMA), in which …

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 …

In this letter, we investigate the secrecy outage performance of a cooperative non-
orthogonal multiple access (NOMA) network, where a base station (BS) communicates with …

In this paper, we investigate the physical layer security of a non-orthogonal multiple access
(NOMA) based downlink hybrid satellite-terrestrial relay network where the satellite …

The objective of this paper is to propose techniques for enhancing the physical layer security
(PLS) performance of half-duplex cooperative non-orthogonal multiple access (HD-CNOMA) …

This letter considers a trusted decode-and-forward relay-assisted two-user non-orthogonal
multiple access (NOMA) communication system, and tackles the secure rate maximization …