Secrecy Rate in BD-RIS-Assisted Uplink Multi-User MIMO Systems Under Nakagami-m Fading with Passive Eavesdropping. jcoeng [Internet]. 2025 Nov. 1 [cited 2025 Nov. 2];31(11):73-89. Available from: https://joe.uobaghdad.edu.iq/index.php/main/article/view/3724