LuMaMi28 : Real-Time Millimeter-Wave Multi-User MIMO Systems with Antenna Selection
(2023) In IEEE Transactions on Wireless Communications 22(11). p.7944-7960- Abstract
This paper presents LuMaMi28, a real-time 28GHz multi-user (MU) multiple-input multiple-output (MIMO) testbed. In this testbed, the base station has 16 transceiver chains with a fully-digital beamforming architecture (with different pre-coding algorithms) and simultaneously supports multiple user equipments (UEs) with spatial multiplexing. The UEs are equipped with a beam-switchable antenna array for real-time antenna selection where the one with the highest channel magnitude, out of four pre-defined beams, is selected. For the beam-switchable antenna array, we consider two kinds of UE antennas, with different beam-width and different peak-gain. Based on this testbed, we provide measurement results for millimeter-wave (mmWave) MU-MIMO... (More)
This paper presents LuMaMi28, a real-time 28GHz multi-user (MU) multiple-input multiple-output (MIMO) testbed. In this testbed, the base station has 16 transceiver chains with a fully-digital beamforming architecture (with different pre-coding algorithms) and simultaneously supports multiple user equipments (UEs) with spatial multiplexing. The UEs are equipped with a beam-switchable antenna array for real-time antenna selection where the one with the highest channel magnitude, out of four pre-defined beams, is selected. For the beam-switchable antenna array, we consider two kinds of UE antennas, with different beam-width and different peak-gain. Based on this testbed, we provide measurement results for millimeter-wave (mmWave) MU-MIMO performance in different real-life scenarios with static and mobile UEs. We explore the potential benefit of the mmWave MU-MIMO systems with antenna selection based on measured channel data, and discuss the performance results through real-time measurements.
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- author
- organization
-
- Integrated Electronic Systems (research group)
- LTH Profile Area: Nanoscience and Semiconductor Technology
- LTH Profile Area: AI and Digitalization
- ELLIIT: the Linköping-Lund initiative on IT and mobile communication
- Department of Electrical and Information Technology
- Communications Engineering (research group)
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Antenna arrays, Antenna measurements, Antenna selection, Antennas, Array signal processing, beamforming, Millimeter wave communication, millimeter-wave (mmWave), multi-user multiple-input multiple-out (MU-MIMO), OFDM, Real-time systems, real-time testbed
- in
- IEEE Transactions on Wireless Communications
- volume
- 22
- issue
- 11
- pages
- 7944 - 7960
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85151539469
- ISSN
- 1536-1276
- DOI
- 10.1109/TWC.2023.3257195
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: IEEE
- id
- 67d903ad-581e-4238-a152-b2e177f63bc1
- date added to LUP
- 2023-05-23 13:15:31
- date last changed
- 2024-01-09 15:47:22
@article{67d903ad-581e-4238-a152-b2e177f63bc1, abstract = {{<p>This paper presents LuMaMi28, a real-time 28GHz multi-user (MU) multiple-input multiple-output (MIMO) testbed. In this testbed, the base station has 16 transceiver chains with a fully-digital beamforming architecture (with different pre-coding algorithms) and simultaneously supports multiple user equipments (UEs) with spatial multiplexing. The UEs are equipped with a beam-switchable antenna array for real-time antenna selection where the one with the highest channel magnitude, out of four pre-defined beams, is selected. For the beam-switchable antenna array, we consider two kinds of UE antennas, with different beam-width and different peak-gain. Based on this testbed, we provide measurement results for millimeter-wave (mmWave) MU-MIMO performance in different real-life scenarios with static and mobile UEs. We explore the potential benefit of the mmWave MU-MIMO systems with antenna selection based on measured channel data, and discuss the performance results through real-time measurements.</p>}}, author = {{Chung, Min Keun and Liu, Liang and Johansson, Andreas and Willhammar, Sara and Nilsson, Martin and Ying, Zhinong and Zander, Olof and Samanta, Kamal and Clifton, Chris and Koimori, Toshiyuki and Morita, Shinya and Taniguchi, Satoshi and Tufvesson, Fredrik and Edfors, Ove}}, issn = {{1536-1276}}, keywords = {{Antenna arrays; Antenna measurements; Antenna selection; Antennas; Array signal processing; beamforming; Millimeter wave communication; millimeter-wave (mmWave); multi-user multiple-input multiple-out (MU-MIMO); OFDM; Real-time systems; real-time testbed}}, language = {{eng}}, number = {{11}}, pages = {{7944--7960}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Wireless Communications}}, title = {{LuMaMi28 : Real-Time Millimeter-Wave Multi-User MIMO Systems with Antenna Selection}}, url = {{http://dx.doi.org/10.1109/TWC.2023.3257195}}, doi = {{10.1109/TWC.2023.3257195}}, volume = {{22}}, year = {{2023}}, }