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Virtual Drive Testing Over-the-Air for Vehicular Communications

Ji, Yilin ; Fan, Wei ; Nilsson, Mikael G. LU ; Hentila, Lassi ; Karlsson, Kristian ; Tufvesson, Fredrik LU orcid and Pedersen, Gert Frolund (2020) In IEEE Transactions on Vehicular Technology 69(2). p.1203-1213
Abstract

Multiple-input multiple-output (MIMO) over-the-air (OTA) testing is a standardized procedure to evaluate the performance of MIMO-capable devices such as mobile phones and laptops. With the growth of the vehicle-to-everything (V2X) service, the need for vehicular communication testing is expected to increase significantly. The so-called multi-probe anechoic chamber (MPAC) setup is standardized for MIMO OTA testing. Typically, a test zone of 0.85 wavelength in diameter can be achieved with an 8-probe MPAC setup, which can encompass device-under-test (DUT) of small form factors. However, a test zone of this size may not be large enough to encompass DUTs such as cars. In this article, the sufficient number of OTA probes for the MPAC setup... (More)

Multiple-input multiple-output (MIMO) over-the-air (OTA) testing is a standardized procedure to evaluate the performance of MIMO-capable devices such as mobile phones and laptops. With the growth of the vehicle-to-everything (V2X) service, the need for vehicular communication testing is expected to increase significantly. The so-called multi-probe anechoic chamber (MPAC) setup is standardized for MIMO OTA testing. Typically, a test zone of 0.85 wavelength in diameter can be achieved with an 8-probe MPAC setup, which can encompass device-under-test (DUT) of small form factors. However, a test zone of this size may not be large enough to encompass DUTs such as cars. In this article, the sufficient number of OTA probes for the MPAC setup for car testing is investigated with respect to the emulation accuracy. Our investigation shows that the effective antenna distance of the DUT is more critical than its physical dimensions to determine the required number of OTA probes. In addition, throughput measurements are performed under the standard SCME UMa and UMi channel models with the 8-probe MPAC setup and the wireless cable setup, i.e. another standardized testing setup. The results show reasonably good agreement between the two setups for MIMO OTA testing with cars under the standard channel models.

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Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
and wireless cable, channel modeling, LTE-V, MIMO OTA testing, MPAC, V2X
in
IEEE Transactions on Vehicular Technology
volume
69
issue
2
article number
8917696
pages
11 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85079800813
ISSN
0018-9545
DOI
10.1109/TVT.2019.2956571
language
English
LU publication?
yes
id
f6416d93-91b4-41fc-97d3-857bce2ecd9d
date added to LUP
2020-03-18 07:50:54
date last changed
2023-08-30 12:11:29
@article{f6416d93-91b4-41fc-97d3-857bce2ecd9d,
  abstract     = {{<p>Multiple-input multiple-output (MIMO) over-the-air (OTA) testing is a standardized procedure to evaluate the performance of MIMO-capable devices such as mobile phones and laptops. With the growth of the vehicle-to-everything (V2X) service, the need for vehicular communication testing is expected to increase significantly. The so-called multi-probe anechoic chamber (MPAC) setup is standardized for MIMO OTA testing. Typically, a test zone of 0.85 wavelength in diameter can be achieved with an 8-probe MPAC setup, which can encompass device-under-test (DUT) of small form factors. However, a test zone of this size may not be large enough to encompass DUTs such as cars. In this article, the sufficient number of OTA probes for the MPAC setup for car testing is investigated with respect to the emulation accuracy. Our investigation shows that the effective antenna distance of the DUT is more critical than its physical dimensions to determine the required number of OTA probes. In addition, throughput measurements are performed under the standard SCME UMa and UMi channel models with the 8-probe MPAC setup and the wireless cable setup, i.e. another standardized testing setup. The results show reasonably good agreement between the two setups for MIMO OTA testing with cars under the standard channel models.</p>}},
  author       = {{Ji, Yilin and Fan, Wei and Nilsson, Mikael G. and Hentila, Lassi and Karlsson, Kristian and Tufvesson, Fredrik and Pedersen, Gert Frolund}},
  issn         = {{0018-9545}},
  keywords     = {{and wireless cable; channel modeling; LTE-V; MIMO OTA testing; MPAC; V2X}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{1203--1213}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Vehicular Technology}},
  title        = {{Virtual Drive Testing Over-the-Air for Vehicular Communications}},
  url          = {{http://dx.doi.org/10.1109/TVT.2019.2956571}},
  doi          = {{10.1109/TVT.2019.2956571}},
  volume       = {{69}},
  year         = {{2020}},
}