Non-orthogonal multiple access (NOMA) has been recognized as a promising technique for
providing high data rates in 5G systems. This letter is to study physical layer security in a …

In this paper, a novel approach is introduced to study the achievable delay-guaranteed
secrecy rate, by introducing the concept of the effective secrecy rate (ESR). This study …

To accommodate the stringent requirements of enhanced coverage quality and improved
spectral efficiency, simultaneous transmitting and reflecting reconfigurable intelligent surface …

Non-orthogonal multiple access systems will face serious physical layer security (PLS)
problems in the present of internal eavesdropper. However, in the existing schemes, it's …

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

A novel secrecy scenario of uplink non-orthogonal multiple access (NOMA) along with
cooperative jammer (s) to improve secrecy performance is studied in this work. We first …

Observing the significance of spectrally-efficient secure non-orthogonal multiple access
(NOMA), this paper proposes a novel quality of service (QoS) aware secure NOMA protocol …

This correspondence studies a new secrecy beamforming (SBF) scheme for multiple-input
single-output non-orthogonal multiple access (MISO-NOMA) systems. In particular, the …

Non-orthogonal multiple access (NOMA) is a prospective technology for radio resource
constrained future mobile networks. However, NOMA users far from a base station (BS) tend …

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 …