2 papers
cs.IT2026
STAR Beyond Diagonal RISs with Amplification: Modeling and Optimization
Chandan Kumar Sheemar, Giovanni Iacovelli, Wali Ullah Khan +3
This paper develops a physically consistent signal model with hardware constraints for a simultaneous transmitting and reflecting beyond-diagonal RIS (STAR BD-RIS) endowed with per…
eess.SP2026
Digital Twin-Based Beamforming for Interference Mitigation in AF Relay MIMO Systems
Alexander Bonora, Anna V. Guglielmi, Davide Scazzoli +4
Beamforming in multiple-input multiple-output (MIMO) systems should take interference mitigation into account. However, for beamform design, accurate channel state information (CSI…