Performance of RIS-Secured Short-Packet NOMA Systems With Discrete Phase-Shifter to Protect Digital Content and Copyright Against Untrusted User Authors Nguyen Quang Sang; Hye-Young Kim; Tan N. Nguyen; Minh Bui Vu; Phuong T. Tran; Tran Trung Duy; Byung-Seo Kim and Miroslav Voznak Publication year 2025 Index (WoS/Scopus) WoS Publisher IEEE Journal IEEE Access Link https://ieeexplore.ieee.org/document/10856109