Abstract
Channel measurements of large-scale multiuser multiple-input multiple-output (MU-MIMO) radio propagation channels are presented. In the setup, three users with patch antennas communicate simultaneously with a base station (BS) equipped with a large antenna array in an indoor environment. Both a uniform linear array (ULA) and a uniform planar array (UPA) are used, and their relative ability to separate MU-MIMO signals is examined. At the mobile station (MS) side, the effect of inter-user spacing (i.e., the spacing between different users) is investigated. This evaluation is done by means of the correlation matrix distance metric (between each pair of users) and the singular value spread of the system. Our investigation shows that the users can be spatially separated in a large antenna array system in line-of-sight propagation conditions even when they are located close to each other. Furthermore, the users tend to be more separable when a ULA is adopted, compared to using a UPA. Finally, we also confirm that larger user separation distance results in increased channel orthogonality by measurements.
Original language | English |
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Title of host publication | 2017 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications |
Subtitle of host publication | Engaged Citizens and their New Smart Worlds, PIMRC 2017 - Conference Proceedings |
Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
Pages | 1-6 |
Number of pages | 6 |
Volume | 2017-October |
ISBN (Electronic) | 9781538635315 |
DOIs | |
Publication status | Published - 2018 Feb 14 |
Event | 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2017 - Hotel Bonaventure, Montreal, Canada Duration: 2017 Oct 8 → 2017 Oct 13 |
Conference
Conference | 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2017 |
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Abbreviated title | PIMRC |
Country/Territory | Canada |
City | Montreal |
Period | 2017/10/08 → 2017/10/13 |
Subject classification (UKÄ)
- Communication Systems