信道老化条件下 CSI 压缩对 MU-MIMO 效率的影响研究

IF 0.4 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
A. V. Barannikov, I. A. Levitsky, V. A. Loginov, A. Yu. Troegubov, E. M. Khorov
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引用次数: 0

摘要

摘要-多用户多输入多输出(MU-MIMO)技术可以提高信道吞吐量。然而,频繁的信道探测和传输信道反馈帧所造成的开销降低了其效率。本文探讨了在使用信道老化 MU-MIMO 的 Wi-Fi 网络中压缩信道状态信息(CSI)的问题。研究旨在通过实验测试 MU-MIMO 技术在实际应用案例中的有效性,同时考虑信道探测程序和 CSI 反馈传输。利用实验装置记录信道,分析其在不同条件下的行为和信号接收功率的变化。此外,通过与实验结果进行比较,研究了 WLAN 工具箱中 TGax MU-MIMO 信道模型的适用范围。这项研究的结果尤其有助于优化信道时间演化和 CSI 压缩下的 MU-MIMO 性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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

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

Abstract

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.

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来源期刊
CiteScore
1.00
自引率
20.00%
发文量
170
审稿时长
10.5 months
期刊介绍: Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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