Millimeter-Wave Massive MIMO Testbed with Hybrid Beamforming

Min Keun Chung, Liang Liu, Andreas Johansson, Martin Nilsson, Olof Zander, Zhinong Ying, Fredrik Tufvesson, Ove Edfors

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3 Citationer (Scopus)


Massive multiple-input multiple-out (MIMO) technology 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 paper, we present a real-time mmWave (28GHz) 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 environments, we extend the capability of an existing 100-antenna/100-TRx massive MIMO testbed (below 6GHz), built upon software-defined radio technology, to a flexible mmWave massive MIMO system.

TitelConference Record of the 54th Asilomar Conference on Signals, Systems and Computers, ACSSC 2020
RedaktørerMichael B. Matthews
Antal sider5
ForlagIEEE Computer Society Press
Publikationsdato1 nov. 2020
ISBN (Elektronisk)9780738131269
StatusUdgivet - 1 nov. 2020
Udgivet eksterntJa
Begivenhed54th Asilomar Conference on Signals, Systems and Computers, ACSSC 2020 - Pacific Grove, USA
Varighed: 1 nov. 20205 nov. 2020


Konference54th Asilomar Conference on Signals, Systems and Computers, ACSSC 2020
ByPacific Grove
NavnConference Record - Asilomar Conference on Signals, Systems and Computers

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© 2020 IEEE.


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