Featured Article: "Secrecy performance analysis of IRS-NOMA systems"
Non-orthogonal multiple access (NOMA) is a multiple access technique included in 5G wireless networks, while intelligent reflecting surfaces (IRS) are considered for 6G. The paper studies physical layer security on wireless multiuser networks equipped with these technologies. In particular, approximate closed-form expressions for the secrecy outage probability (SOP) and the asymptotic SOP for different wiretapping cases are derived. It is observed that the IRS-NOMA can achieve superior secrecy performance with increasing the number of reflecting elements of the IRS.