Propagation Measurements and Path Loss Models for sub-THz in Urban Microcells
Propagation Measurements and Path Loss Models for sub-THz in Urban Microcells
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DOI：
10.1109/icc42927.2021.9500385
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发表时间：
2021-03
期刊：
影响因子：
--
通讯作者：
Yunchou Xing;T. Rappaport
中科院分区：
文献类型：
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作者：
Yunchou Xing;T. Rappaport
由于有大量未使用和未开发的频谱，太赫兹频段可能会用于下一代无线通信系统，以提供数百 Gbps 甚至 Tbps 的数据速率。本文介绍了布鲁克林市中心（城市微蜂窝环境）中 140 GHz 亚太赫兹频段的两项户外宽带测量活动，TX-RX 间隔距离高达 117.4 m：i) 地面城市微蜂窝测量活动，以及 ii) 屋顶替代卫星和回程测量活动。针对城市微蜂窝环境，在 140 GHz 下提供了针对视距和非视距场景的室外全向和定向路径损耗模型，以及树叶损耗（通过树叶的信号衰减）。这些测量和模型使人们能够了解室外地面（例如，6G 蜂窝和回程）和非地面（例如，卫星和无人机通信）无线信道，并证明使用太赫兹频段进行室外固定和移动蜂窝通信的可行性。本文可用于未来100 GHz以上频率的室外无线系统设计。
Terahertz frequency bands will likely be used for the next-generation wireless communication systems to provide data rates of hundreds of Gbps or even Tbps because of the wide swaths of unused and unexplored spectrum. This paper presents two outdoor wideband measurement campaigns in downtown Brooklyn (urban microcell environment) in the sub-THz band of 140 GHz with TX-RX separation distance up to 117.4 m: i) terrestrial urban microcell measurement campaign, and ii) rooftop surrogate satellite and backhaul measurement campaign. Outdoor omnidirectional and directional path loss models for both line-of-sight and non-line-of-sight scenarios, as well as foliage loss (signal attenuation through foliage), are provided at 140 GHz for urban microcell environments. These measurements and models provide an understanding of both the outdoor terrestrial (e.g., 6G cellular and backhaul) and non-terrestrial (e.g., satellite and unmanned aerial vehicle communications) wireless channels, and prove the feasibility of using THz frequency bands for outdoor fixed and mobile cellular communications. This paper can be used for future outdoor wireless system design at frequencies above 100 GHz.