Demo: Millimeter-Wave Massive MIMO Testbed with Hybrid Beamforming

被引：3
|
作者：
Chung, MinKeun [1 ]
Liu, Liang [1 ]
Edfors, Ove [1 ]
Tufvesson, Fredrik [1 ]
机构：
[1] Lund Univ, Dept Elect & Informat Technol, Lund, Sweden
来源：
2020 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE WORKSHOPS (WCNCW) | 2020年
关键词：
D O I：
10.1109/wcncw48565.2020.9124740
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Massive multiple-input multiple-out (MIMO) is vital in millimeter-wave (mmWave) bands to obtain large array gains. However, there are practical challenges, such as high hardware cost and power consumption in such systems. A promising solution to these problems is to adopt a hybrid beamforming architecture. This architecture has a much lower number of transceiver (TRx) chains than the total antenna number, resulting in cost- and energy-efficient systems. In this demo, we present a real-time mmWave (28 GHz) massive MIMO testbed with hybrid beamforming. This testbed has a 64-antenna/16-TRx unit for beam-selection, which can be expanded to larger array sizes in a modular way. For testing everything from baseband processing algorithms to scheduling and beam-selection in real propagation environment, we extend the capability of an existing 100-antenna/100-TRx massive MIMO testbed (below 6 GHz), built upon software-defined radio technology, to a flexible mmWave massive MIMO system.
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页数：2
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