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arXiv 2109.13693eess.SPcs.SYeess.SY
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城市D2D环境中THz波段信道测量和统计建模

THz Band Channel Measurements and Statistical Modeling for Urban D2D Environments

Naveed A. Abbasi, Jorge Gomez-Ponce, Revanth Kondaveti, Shahid M. Shaikbepari, Shreyas Rao, Shadi Abu-Surra, Gary Xu, Charlie Zhang, Andreas F. Molisch

摘要:

THz频段被设想用于6 G系统,以满足对数据速率不断增长的需求。然而,在最终的系统设计和部署可以进行之前,需要详细的信道探测测量来了解关键信道特性。在本文中,我们提出了第一个广泛的一组信道测量的城市室外环境,是超宽带(1 GHz 3dB带宽),双向的发射机和接收机都在同一高度。总之,我们在38个Tx/Rx位置对上进行了测量,总共包括近50,000个脉冲响应,在1-100 m范围内的视线(LoS)和非视线(NLoS)情况下。我们提供建模的路径损耗,阴影,延迟扩展,角度扩展和多径分量(MPC)的功率分布。我们发现,除此之外,即使在NLoS场景中,数十米的户外通信在该频率范围内也是可行的,观察到高达100 ns的全向延迟扩展和高达10 ns的定向延迟扩展,同时角扩展也非常显著,并且对于1 GHz带宽和13度波束宽度观察到数量惊人的MPC。这些结果构成了更好地理解太赫兹波段无线信道的重要的第一步。

英文摘要:

THz band is envisioned to be used in 6G systems to meet the ever-increasing demand for data rate. However, before an eventual system design and deployment can proceed, detailed channel sounding measurements are required to understand key channel characteristics. In this paper, we present a first extensive set of channel measurements for urban outdoor environments that are ultra-wideband (1 GHz 3dB bandwidth), and double-directional where both the transmitter and receiver are at the same height. In all, we present measurements at 38 Tx/Rx location pairs, consisting of a total of nearly 50,000 impulse responses, at both line-of-sight (LoS) and non-line-of-sight (NLoS) cases in the 1-100 m range. We provide modeling for path loss, shadowing, delay spread, angular spread and multipath component (MPC) power distribution. We find, among other things, that outdoor communication over tens of meters is feasible in this frequency range even in NLoS scenarios, that omni-directional delay spreads of up to 100 ns, and directional delay spreads of up to 10 ns are observed, while angular spreads are also quite significant, and a surprisingly large number of MPCs are observed for 1 GHz bandwidth and 13 degree beamwidth. These results constitute an important first step towards better understanding the wireless channel in the THz band.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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