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.

中文翻译：

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低太赫兹频带车辆通信的信道测量和建模

低太赫兹频段（0.1 THz–1 THz）中的无线通信是启用5G之后超高速车载网络的有希望的候选者。这种系统的成功设计和采用要求对复杂车辆场景中的低THz通道特性有深入的了解。在本文中，报告了一项全面的测量活动，旨在分析典型车辆部署中300 GHz处的波传播。遵循模块化方法，通用车辆场景被分解为基本传播设置，并对其进行了详细分析。然后，将获得的测量数据应用于得出表征每种情况下低THz频段信道特性的数学近似值。最后，测量和建模结果的组合用于确定在应用研究中必须考虑的关键传播效应。所提出的方法，原始数据和处理后的数据以及所进行的分析，为将来的分析和仿真工具构建了基础，这些工具可以在低THz频段中对预期的车辆通信系统进行建模。