University of Oulu

W. Fan, L. Hentilä, P. Kyösti and G. F. Pedersen, "Test Zone Size Characterization With Measured MIMO Throughput for Simulated MPAC Configurations in Conductive Setups," in IEEE Transactions on Vehicular Technology, vol. 66, no. 11, pp. 10532-10536, Nov. 2017. doi: 10.1109/TVT.2017.2727258

Test zone size characterization with measured MIMO throughput for simulated MPAC configurations in conductive setups

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Author: Fan, Wei1; Hentilä, Lassi2; Kyösti, Pekka3,4;
Organizations: 1Antennas, Propagation and Radio Networking Section, Department of Electronic Systems, Aalborg University, Aalborg 9220, Denmark
2Kesight Technologies Oy, Espoo 02600, Finland
3Keysight Technologies Finland Oy, Oulu, Finland
4Centre for Wireless Communications (CWC), University of Oulu, Oulu, FI-90014 Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2018-08-07


This correspondence discusses over-the-air (OTA) testing for multiple-input multiple-output (MIMO) capable terminals, with an emphasis on test zone size characterization for multi-probe anechoic chamber (MPAC) OTA configurations. For an MPAC setup, it is important to understand the test zone size that can be supported by its design. Further, it is desirable that the test zone size should be determined in terms of measured throughput deviation. However, such works have not been reported in the literature yet, due to challenges in practical MPAC setups. In this correspondence, we propose to simulate the MPAC OTA configuration and MS design in a channel emulator and perform MIMO throughput measurements in a conductive setup. With the proposed scheme, we can investigate how large a test zone can be supported for the synthetic MPAC configuration in terms of throughput deviation. This scheme is attractive, since various MS antenna designs and MPAC configurations can be flexibly selected and test zone size in terms of measured MIMO throughput deviation can be achieved. Measurement results show that with a high antenna correlation at the base station (BS) side, measured throughput results would be low, irrelevant to MPAC OTA designs and antenna designs at the MS side. Therefore, the antenna correlation at BS side should be set uncorrelated to ensure that true MS performance can be measured. Further, spatial correlation accuracy at the MS side becomes critical for throughput accuracy only when correlation values are in the high region (e.g., ρ > 0.5).

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Series: IEEE transactions on vehicular technology
ISSN: 0018-9545
ISSN-E: 1939-9359
ISSN-L: 0018-9545
Volume: 66
Issue: 11
Pages: 10532 - 10536
DOI: 10.1109/TVT.2017.2727258
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the Innovation Fund Denmark via the Virtusuo project. The work of W. Fan was supported by the Danish council for independent research under Grant DFF611100525.
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