Virtual Drive Testing Over-the-Air for Vehicular CommunicationsShow others and affiliations
2020 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. 69, no 2, p. 1203-1213, article id 8917696Article in journal (Refereed) Published
Abstract [en]
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.
Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2020. Vol. 69, no 2, p. 1203-1213, article id 8917696
Keywords [en]
and wireless cable, channel modeling, LTE-V, MIMO OTA testing, MPAC, V2X, Antennas, Cables, Design for testability, MIMO systems, Probes, Channel model, Physical dimensions, Standard channel models, Standardized procedure, Standardized testing, Throughput measurements, Vehicular communications, Vehicle to vehicle communications
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-44395DOI: 10.1109/TVT.2019.2956571Scopus ID: 2-s2.0-85079800813OAI: oai:DiVA.org:ri-44395DiVA, id: diva2:1412900
2020-03-092020-03-092023-05-25Bibliographically approved