Average BLER Analysis of Ambient Backscatter RSMA Systems for URLLC Short-Packet Communications. - PHAM, Anh-Thu; NGUYEN, Sang-Quang; LE, Phu-Nguyen; LE, Hai-Trieu; DANG, Minh-Tuan; HOANG, Trong-Minh (Radioengineering, 2025)