158 citations · 457 across the 40 of their papers we have counts for
11 papers · 1 filter
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…
Two-Timescale Joint Precoding Design and RIS Optimization for User Tracking in Near-Field MIMO Systems
Silvia Palmucci, Anna Guerra, Andrea Abrardo +1
In this paper, we propose a novel framework that aims to jointly design the reflection coefficients of multiple RISs and the precoding strategy of a single BS to optimize the self-…
LoS MIMO-Arrays vs. LoS MIMO-Surfaces
Marco Di Renzo, Davide Dardari, Nicolo' Decarli
The wireless research community has expressed major interest in the sub-terahertz band for enabling mobile communications in future wireless networks. The sub-terahertz band offers…
MIMO Interference Channels Assisted by Reconfigurable Intelligent Surfaces: Mutual Coupling Aware Sum-Rate Optimization Based on a Mutual Impedance Channel Model
Andrea Abrardo, Davide Dardari, Marco Di Renzo +1
We investigate a multi-user multiple-input multiple-output interference network in the presence of multiple reconfigurable intelligent surfaces (RISs). The entire system is describ…
Near-field Tracking with Large Antenna Arrays: Fundamental Limits and Practical Algorithms
Anna Guerra, Francesco Guidi, Davide Dardari +1
Applications towards 6G have brought a huge interest towards arrays with a high number of antennas and operating within the millimeter and sub-THz bandwidths for joint communicatio…
Intelligent Reflecting Surfaces: Sum-Rate Optimization Based on Statistical CSI
Andrea Abrardo, Davide Dardari, Marco Di Renzo
In this paper, we consider a multi-user multiple-input multiple-output (MIMO) system aided by multiple intelligent reflecting surfaces (IRSs) that are deployed to increase the cove…
Dynamic Radar Network of UAVs: A Joint Navigation and Tracking Approach
Anna Guerra, Davide Dardari, Petar M. Djuric
Nowadays there is a growing research interest on the possibility of enriching small flying robots with autonomous sensing and online navigation capabilities. This will enable a lar…
Communicating with Large Intelligent Surfaces: Fundamental Limits and Models
Davide Dardari
This paper analyzes the optimal communication involving large intelligent surfaces (LIS) starting from electromagnetic arguments. Since the numerical solution of the corresponding…
Positioning Data-Rate Trade-off in mm-Wave Small Cells and Service Differentiation for 5G Networks
Gourab Ghatak, Remun Koirala, Antonio De Domenico +3
We analyze a millimeter wave network, deployed along the streets of a city, in terms of positioning and downlink data-rate performance, respectively. First, we present a transmissi…
Single Anchor Localization and Orientation Performance Limits using Massive Arrays: MIMO vs. Beamforming
Anna Guerra, Francesco Guidi, Davide Dardari
Next generation cellular networks will experience the combination of femtocells, millimeter-wave (mm-wave) communications and massive antenna arrays. Thanks to the beamforming capa…
Capacity Achieving Peak Power Limited Probability Measures: Sufficient Conditions for Finite Discreteness
Vincenzo Zambianchi, Enrico Paolini, Davide Dardari
The problem of capacity achieving (optimal) input probability measures has been widely investigated for several channel models with constrained inputs. So far, no outstanding gener…