Study of CSI Compression Influence on MU-MIMO Efficiency under Channel Aging

被引：1

作者：

Barannikov, A. V. ^{[1
,2
]}

Levitsky, I. A. ^{[1
]}

Loginov, V. A. ^{[1
,3
]}

Troegubov, A. Yu. ^{[1
,2
]}

Khorov, E. M. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Informat Transmiss Problems, Moscow 127051, Russia

[2] Natl Res Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Oblast, Russia

[3] Natl Res Univ, Higher Sch Econ, Moscow 101000, Russia

来源：

JOURNAL OF COMMUNICATIONS TECHNOLOGY AND ELECTRONICS | 2024年 / 69卷 / 1-3期

基金：

俄罗斯科学基金会;

关键词：

CSI; MU-MIMO; CSI compression; channel aging; COMPLEXITY;

D O I：

10.1134/S1064226924700098

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Multi-User Multiple Input Multiple Output (MU-MIMO) technology allows you to increase the channel throughput. However, its efficiency is reduced by overhead induced by frequent channel sounding and transmission of channel feedback frames. This article examines the problems of channel state information (CSI) compression in Wi-Fi networks using MU-MIMO with channel aging. The research aims to experimentally test the effectiveness of MU-MIMO technology in real use cases, considering the channel sounding procedures and CSI feedback transmission. Using an experimental setup, the channel has been recorded to analyze its behavior and the evolution of the signal received power under different conditions. In addition, the limits of the applicability of the TGax MU-MIMO channel model in the WLAN Toolbox have been investigated by comparing it with experimental results. The findings of this study are particularly useful in optimizing MU-MIMO performance under channel time evolution and CSI compression.

引用

页码：60 / 69

页数：10

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