In this paper, non-orthogonal multiple access (NOMA) in cooperative relay system is considered, where a source node communicates with pair of energy harvesting (EH) user equipments through antennas node. A hybrid protocol adopted at the relay, which if can successfully decode signals, decode-and-forward (DF) will be to forward signals users. Otherwise, amplify-and-forward (AF) implemented. Assu...

In this paper, we propose a two-way secure communication scheme where two transceivers exchange confidential messages via a wireless powered untrusted amplify-and-forward (AF) relay in the presence of an external jammer. We take into account both friendly jamming (FJ) and Gaussian noise jamming (GNJ) scenarios. Based on the time switching (TS) architecture at the relay, the data transmission is...

In this paper, we propose a two-way secure communication scheme where two transceivers exchange confidential messages via a wireless powered untrusted amplify-and-forward (AF) relay in the presence of an external jammer. We take into account both friendly jamming (FJ) and Gaussian noise jamming (GNJ) scenarios. Based on the time switching (TS) architecture at the relay, the data transmission is...