8 papers
On Landau's Eigenvalue Theorem for Line-of-Sight MIMO Channels
Andrea Pizzo, Angel Lozano
An alternative derivation is provided for the degrees of freedom (DOF) formula on line-of-sight (LOS) channels via Landau's eigenvalue theorem for bandlimited signals. Compared to…
Line-of-Sight MIMO via Reflection From a Smooth Surface
Andrea Pizzo, Angel Lozano, Sundeep Rangan +1
We provide a deterministic channel model for a scenario where wireless connectivity is established through a reflection from a planar smooth surface of an infinite extent. The deve…
Holographic MIMO Communications Under Spatially-Stationary Scattering
Andrea Pizzo, Thomas Marzetta, Luca Sanguinetti
Holographic MIMO is a spatially-constrained MIMO system with a massive number of antennas, possibly thought of, in its ultimate form, as a spatially-continuous electromagnetic aper…
Degrees of Freedom of Holographic MIMO Channels
Andrea Pizzo, Thomas L. Marzetta, Luca Sanguinetti
We consider spatially-constrained apertures of rectangular symmetry and aim to retrieve the limit to the average number of spatial degrees of freedom (DoF), obtained elsewhere thro…
Spectral Efficiency Analysis in Dense Massive MIMO Networks
Fahime Sadat Mirhosseini, Andrea Pizzo, Luca Sanguinetti +1
This work considers the uplink of a Massive MIMO network wherein the base stations (BSs) are randomly deployed according to a homogenous Poisson point process of intensity . Eac…
Solving Fractional Polynomial Problems by Polynomial Optimization Theory
Andrea Pizzo, Alessio Zappone, Luca Sanguinetti
This work aims to introduce the framework of polynomial optimization theory to solve fractional polynomial problems (FPPs). Unlike other widely used optimization frameworks, the pr…