4.7 Article

Channel Measurements and Modeling for Low-Terahertz Band Vehicular Communications

Journal

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
Volume 39, Issue 6, Pages 1590-1603

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSAC.2021.3071843

Keywords

Rotation measurement; Interference; Data models; Calibration; Atmospheric measurements; Roads; Antenna measurements; THz; vehicular communications; channel measurements; propagation models; beyond 5G

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This paper presents a comprehensive measurement campaign to analyze wave propagation at 300 GHz in typical vehicular deployments, decomposing the generic vehicular scenario into basic setups for detailed analysis using a modular approach. The combination of measurement and modeling results is used to identify critical propagation effects that must be considered in applied studies.
Wireless communications in the low terahertz band (0.1 THz-1 THz) is a promising candidate to enable ultra-high-rate vehicular networks beyond 5G. The successful design and adoption of such systems require a deep understanding of the low THz channel specifics in complex vehicular scenarios. In this paper, a comprehensive measurement campaign is reported with the aim of analyzing the wave propagation at 300 GHz in typical vehicular deployments. Following a modular approach, the generic vehicular scenario is decomposed into basic propagation setups that are further analyzed in detail. The obtained measurement data are then applied to derive the mathematical approximations that characterize the low THz band channel properties for each scenario. Finally, the combination of measurement and modeling results is used to identify the critical propagation effects that has to be accounted for in the applied studies. The presented approach, raw and processed data, as well as the contributed analysis, serve as building blocks for future analytical and simulation tools to model prospective vehicular communication systems in the low THz band.

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