Multiuser MIMO with Large Intelligent Surfaces: Communication Model and Transmit Design

Robin Jess Williams, Pablo Ramirez Espinosa, Elisabeth De Carvalho, Thomas L. Marzetta

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8 Citationer (Scopus)

Abstract

This paper proposes a communication model for multiuser multiple-input multiple-output (MIMO) systems based on large intelligent surfaces (LIS), where the LIS is modeled as a collection of tightly packed antenna elements. The LIS system is first represented in a circuital way, obtaining expressions for the radiated and received powers, as well as for the coupling between the distinct elements. Then, this circuital model is used to characterize the channel in a line-of-sight propagation scenario, rendering the basis for the analysis and design of MIMO systems. Due to the particular properties of LIS, the model accounts for superdirectivity and mutual coupling effects along with near field propagation, necessary in those situations where the array dimension becomes very large. Finally, with the proposed model, the matched filter transmitter and the weighted minimum mean square error precoding are derived under both realistic constraints: limited radiated power and maximum ohmic losses.

OriginalsprogEngelsk
TitelICC 2021 - IEEE International Conference on Communications
Antal sider6
ForlagIEEE
Publikationsdato23 jun. 2021
Sider1-6
ISBN (Trykt)978-1-7281-7123-4
ISBN (Elektronisk)978-1-7281-7122-7
DOI
StatusUdgivet - 23 jun. 2021
Begivenhed2021 IEEE International Conference on Communications Workshops (ICC Workshops) - Montreal, Canada
Varighed: 14 jun. 202123 jun. 2021

Konference

Konference2021 IEEE International Conference on Communications Workshops (ICC Workshops)
Land/OmrådeCanada
ByMontreal
Periode14/06/202123/06/2021
NavnI E E E International Conference on Communications
ISSN1550-3607

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