3 papers
cs.IT2026
Site-Specific MIMO Channel Generation via Diffusion and Flow Matching: Fidelity, Efficiency, and Downstream Utility
Sina Beyraghi, Masoud Sadeghian, Firdous Bin Ismail +3
This paper explores the use of generative models to synthesize high-quality, site-specific multiple-input multiple-output (MIMO) channel data, addressing the high cost of the exten…
cs.IT2025
Pilot-to-Data Power Ratio in RIS-Assisted Multiantenna Communication
Masoud Sadeghian, Angel Lozano, Gabor Fodor
The optimization of the \gls{pdpr} is a recourse that helps wireless systems to acquire channel state information while minimizing the pilot overhead. While the optimization of the…
cs.IT2025
Beamforming Saturation in Two-Timescale RIS-assisted Communication
Masoud Sadeghian, Angel Lozano, Gabor Fodor
This paper considers wireless communication assisted by a reconfigurable intelligent surface (RIS), focusing on the two-timescale approach, in which the RIS phase shifts are optimi…