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 …

We study the secrecy transmission of uplink non-orthogonal multiple access (NOMA) with
single antenna and multi-antenna users in presence of an eavesdropper. Two phases are …

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 …

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

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

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

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

Differentsystemmodels utilizing nonorthogonal multiple access (NOMA) have been
successfully studied to meet the growing capacity demands of the Internet of Things IoT) …

This paper considers the secrecy outage performance of a multiple-relay assisted non-
orthogonal multiple access (NOMA) network over Nakagami-m fading channels. Two time …