2 papers
cs.IT2025
Secret-key-based physical layer security for feedback-aided unsourced random access
Mohammad Javad Ahmadi, Rafael F. Schaefer, F. Rostami Ghadi +1
This work introduces security for unsourced random access (URA) via a physical-layer security approach. To achieve confidentiality, the proposed system opportunistically exploits i…
cs.IT2023
Learning End-to-End Channel Coding with Diffusion Models
Muah Kim, Rick Fritschek, Rafael F. Schaefer
It is a known problem that deep-learning-based end-to-end (E2E) channel coding systems depend on a known and differentiable channel model, due to the learning process and based on…