Degree of Freedom Analysis For a Holographic MIMO System Based on a Circuit Model

The degree of freedom (DOF) is a key indicator of the spatial multiplexing layers of a wireless channel. Recent studies suggest that the DOF of a multiple-input and multiple-output could be less than the antenna number when strong mutual coupling is considered. To this end, We utilized a mutual-coup...

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Bibliographic Details
Published in2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation (APCAP) Vol. 1; pp. 1 - 2
Main Authors Sun, Yunqi, Jian, Mengnan, Zhao, Yajun, Chen, Yijian
Format Conference Proceeding
LanguageEnglish
Published IEEE 22.11.2023
Subjects
Analytical models
Aperture coupled antennas
circuit model
degree of freedom
holographic MIMO
Mutual coupling
Numerical models
Numerical simulation
Space division multiplexing
Wireless communication
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Summary:The degree of freedom (DOF) is a key indicator of the spatial multiplexing layers of a wireless channel. Recent studies suggest that the DOF of a multiple-input and multiple-output could be less than the antenna number when strong mutual coupling is considered. To this end, We utilized a mutual-coupling-compliant circuit MIMO model to study the DOF of the holographic MIMO (HMIMO) channel. We showed that a dense array with strong mutual-coupling could support more DOF compared to some popular HMIMO models by numerical simulations.
DOI:10.1109/APCAP59480.2023.10470300