Ruwaida A. A. Abdul Kareem

Secure Communications in RIS-Aided NOMA Networks Joint Active and Passive Beamforming with Physical Layer Security

In this paper, we study the physical layer security of reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access (NOMA) downlink systems. A multi-antenna base station (BS) serves two NOMA users in the presence of a passive eavesdropper, and a RIS equipped with N passive phase-shifting elements is em...