Following recent advances in terahertz (THz) technology, there is a consensus among multiple research initiatives on the essential role of THz communications in the sixth generation of wireless communication systems and beyond. Aiming at catalyzing THz communications research, we propose TeraMIMO, an accurate MATLAB simulator of statistical THz channels. We simulate ultra-massive multiple-input multiple-output antenna configurations as critical infrastructure enablers that overcome the limitation in THz communications distances. We consider both line-of-sight and multipath components and propose frequency- and delay-domain implementations for single- and multi-carrier paradigms in both time-invariant and time-variant scenarios. We implement exhaustive molecular absorption computations based on radiative transfer theory alongside alternative sub-THz approximations. We further model THz-specific constraints, including wideband beam split effects, spherical wave propagation, and misalignment fading. We verify TeraMIMO by analogy with measurement-based channel models in the literature, and we introduce a graphical user interface.

翻译：继最近Thahertz(Thz)技术的进展之后,多个研究举措就Thz通信在第六代无线通信系统内外的重要作用达成了共识。为了刺激Thz通信研究,我们提议TeraMIMO,这是统计Thz频道的精确的MATLAB模拟器。我们模拟了超大型多输出多输出天线配置,作为克服Thz通信距离限制的关键基础设施推进器。我们考虑的是视线和多路径组件,并提议在时间变异和时间变异两种情况下采用单一和多载体模式的频度和延迟度。我们根据辐射转移理论以及替代子Thz近光线进行详尽的分子吸收计算。我们进一步模拟了Thz特有的限制,包括宽带波分效应、球波波传播和不均匀化。我们通过在文献中与基于测量的信道模型进行类比来核查TeraMIMIMO,我们引入了一个图形用户界面。