Showing 2024Show all
3 papers · 1 filter
eess.SP2024
RIS-Aided Covert Communications with Statistical CSI: A Multiport Network Theory Approach
Andrea Abrardo, Giulio Bartoli
A novel framework for covert communications aided by Reconfigurable Intelligent Surfaces (RIS) is proposed. In this general framework, the use of multiport network theory for model…
cs.IT2024
Power Minimization with Rate Constraints for Multi-User MIMO Systems with Large-Size RISs
Silvia Palmucci, Giulio Bartoli, Andrea Abrardo +2
This study focuses on the optimization of a single-cell multi-user multiple-input multiple-output (MIMO) system with multiple large-size reconfigurable intelligent surfaces (RISs).…
cs.IT2024
CSI-Free Optimization of Reconfigurable Intelligent Surfaces with Interference by Using Multiport Network Theory
A. Abrardo
Reconfigurable Intelligent Surfaces (RIS) will play a pivotal role in next-generation wireless systems. Despite efforts to minimize pilot overhead associated with channel estimatio…