Holographic MIMO Communications Under Spatially-Stationary Scattering
Andrea Pizzo, Thomas Marzetta, Luca Sanguinetti
TL;DR
This paper develops a 4D plane-wave channel model for holographic MIMO systems with arbitrary stationary scattering, enabling capacity evaluation of large volumetric antenna arrays and generalizing existing models for linear arrays.
Contribution
It introduces a novel 4D plane-wave representation for holographic MIMO under stationary scattering, extending the virtual channel model to volumetric arrays.
Findings
Provides a comprehensive channel model for holographic MIMO
Enables capacity analysis of volumetric antenna arrays
Generalizes existing models for linear arrays
Abstract
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 aperture. Accurate and tractable channel modeling is critical to understanding the full potential of this technology. This paper considers arbitrary spatially-stationary scattering and provides a 4D plane-wave representation in Cartesian coordinates, which captures the essence of electromagnetic propagation and allows to evaluate the capacity of Holographic MIMO systems with rectangular volumetric arrays. The developed framework generalizes the virtual channel representation, which was originally developed for uniform linear arrays.
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