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Research on Indoor Millimeter Wave 3D-MIMO Wireless Channel Parameter Extraction and Multipath Cluster Characteristics

被引：0
|
作者：
Liao X. [1 ,2 ]
Huang C.-X. [1 ]
Wang Y. [1 ]
Che Y.-T. [3 ]
机构：
[1] School of Communication and Information Engineering, Chongqing University of Postsand Telecommunications, Chongqing
[2] State Key Laboratory of Millimeter Wave, Southeast University, Jiangsu, Nanjing
[3] Key Laboratory of Electronic Information Control, 29th Research Institute of China Electronics Technology Group Corporation, Sichuan, Chengdu
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2022年 / 50卷 / 11期
关键词：
channel measurement; high resolution; millimeter wave 3D-MIMO; multipath clustering; non-line-of-sight propagation; parameter extraction;
D O I：
10.12263/DZXB.20211490
中图分类号：
学科分类号：
摘要：
Aiming at the problems of insufficient measurement of three dimensional multiple input multiple output (3D-MIMO) wireless channel and incomplete description of multipath cluster characteristics in indoor multi-user scenarios, parameter extraction algorithm and multipath cluster characteristics of indoor millimeter wave 3D-MIMO wireless channel are studied based on measurement. Three users are deployed in indoor multipath propagation, and wireless channel frequency domain measurements of different antenna array sizes based on virtual array are carried out. The problem that the frequency domain alternating generalized expectation maximization(FD-SAGE) algorithm cannot describe the vertical angular characteristics of 3D-MIMO channel and the delay resolution is insufficient. Improved algorithm adds the vertical dimension, and uses the iterative method of parameter priority to improve the delay domain performance of parameter extraction in millimeter wave 3D-MIMO channel. The results show that the improved algorithm can not only extract millimeter wave 3D-MIMO channel parameters accurately, but also achieve the time-delay resolution in multipath cluster with the increase of array size. © 2022 Chinese Institute of Electronics. All rights reserved.
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页码：2698 / 2706
页数：8
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