Paper Info
Title
Demo: Millimeter-Wave Massive Mimo Testbed With Hybrid Beamforming
Abstract
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.
Year
DOI
Venue
2020
10.1109/WCNCW48565.2020.9124740
2020 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE WORKSHOPS (WCNCW)
DocType
ISSN
Citations 
Conference
2167-8189
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
MinKeun Chung1605.13
Liang Liu29518.47
O. Edfors315110.33
Fredrik Tufvesson44565254.00