29 citations · 77 across the 23 of their papers we have counts for
3 papers · 2 filters
MMSE Design of RIS-aided Communications
Wen-Xuan Long, Marco Moretti, Andrea Abrardo +2
Consider a communication system in which a single antenna user equipment exchanges information with a multi-antenna base station via a reconfigurable intelligent surface (RIS) in t…
Analysis and Optimization of Reconfigurable Intelligent Surfaces Based on -Parameters Multiport Network Theory
Andrea Abrardo, Alberto Toccafondi, Marco Di Renzo
In this paper, we consider a reconfigurable intelligent surface (RIS) and model it by using multiport network theory. We first compare the representation of RIS by using -parame…
Spatial Multiplexing in Near Field MIMO Channels with Reconfigurable Intelligent Surfaces
Giulio Bartoli, Andrea Abrardo, Nicolo Decarli +2
We consider a multiple-input multiple-output (MIMO) channel in the presence of a reconfigurable intelligent surface (RIS). Specifically, our focus is on analyzing the spatial multi…