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arXiv 2302.12142cs.ITeess.SPmath.IT
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142 GHz工业厂房多径传播测量与路径损耗信道建模

142 GHz Multipath Propagation Measurements and Path Loss Channel Modeling in Factory Buildings

Shihao Ju, Theodore S. Rappaport

摘要:

本文介绍了在四个具有不同布局和设施的工厂中进行的142 GHz的亚太赫兹(THz)无线电传播测量,以探索6 G及更高智能工厂的亚太赫兹无线信道。在这里,我们研究的空间和时间信道响应在82发射机-接收机(TX-RX)的位置在纽约市地区的四个工厂,从5米到85米的距离在视线(LOS)和非LOS(NLOS)的环境。测量使用基于滑动相关的信道探测器进行,具有1 GHz RF带宽,具有可操纵的定向喇叭天线,在TX和RX处具有27 dBi增益和8 \degree半功率波束宽度,使用垂直和水平天线极化,产生超过75,000个定向功率延迟分布。在1.5 m(高)仿真手持设备和0.5 m(低)仿真自动导引车(AGV)的两个RX高度的通道测量进行了各种杂波密度的自动化工业场景。结果产生了142 GHz室内工厂(INF)环境的第一个路径损耗模型,并显示与LOS和NLOS位置的高RX高度相比,低RX高度分别经历了10.7 dB和6.0 dB的平均路径损耗增加。此外,在信道增强测量中利用平坦且可旋转的金属板作为无源反射表面(PRS)来探索亚THz传播信道上的潜在功率增益,与不存在PRS时相比,全向信道增益的范围从0.5到22 dB的改善,平均为6.5 dB。

英文摘要:

This paper presents sub-Terahertz (THz) radio propagation measurements at 142 GHz conducted in four factories with various layouts and facilities to explore sub-THz wireless channels for smart factories in 6G and beyond. Here we study spatial and temporal channel responses at 82 transmitter-receiver (TX-RX) locations across four factories in the New York City area and over distances from 5 m to 85 m in both line-of-sight (LOS) and non-LOS (NLOS) environments. The measurements were performed with a sliding-correlation-based channel sounder with 1 GHz RF bandwidth with steerable directional horn antennas with 27 dBi gain and 8\degree~half-power beamwidth at both TX and RX, using both vertical and horizontal antenna polarizations, yielding over 75,000 directional power delay profiles. Channel measurements of two RX heights at 1.5 m (high) emulating handheld devices and at 0.5 m (low) emulating automated guided vehicles (AGVs) were conducted for automated industrial scenarios with various clutter densities. Results yield the first path loss models for indoor factory (InF) environments at 142 GHz and show the low RX height experiences a mean path loss increase of 10.7 dB and 6.0 dB when compared with the high RX height at LOS and NLOS locations, respectively. Furthermore, flat and rotatable metal plates were leveraged as passive reflecting surfaces (PRSs) in channel enhancement measurements to explore the potential power gain on sub-THz propagation channels, demonstrating a range from 0.5 to 22 dB improvement with a mean of 6.5 dB in omnidirectional channel gain as compared to when no PRSs are present.

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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