Measurement Based Directional Modeling of Dynamic Human Body Shadowing at 28 GHz
Measurement Based Directional Modeling of Dynamic Human Body Shadowing at 28 GHz
复制标题
28 GHz 动态人体阴影基于测量的定向建模
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
A. Molisch
中科院分区：
文献类型：
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作者：
Thomas Choi;C. U. Bas;Rui Wang;Sooyoung Hur;Jeongho Park;Jianzhong Zhang;A. Molisch
本文研究了在28 GHz的设备到设备（D2D）通信场景中人体阴影的影响。测量是用一个实时通道探测器配备快速切换相控天线阵列，这使得定向解决动态效应的宽带测量。通过利用设置的相位相干性，可以随时间跟踪多径分量，观察信道特性的时间变化。本文介绍了在室外（广场）环境中，在两个不同的链接距离：5米和10米的人体阴影的结果。然后，我们分析了相应的假设，具有不同的波束宽度的固定波束，12°定向单波束和102°扇形组合波束的结果。更重要的是，对于第一次，时变角功率谱和时间演化的平均角度和角度扩展统计的步行行人的动态信道，这不能测量与传统的喇叭天线信道探测器。
This paper investigates the effects of a human body shadowing for a device-to-device (D2D) communications scenario at 28 GHz. The measurements are performed with a real-time channel sounder equipped with fast-switching phased antenna arrays, which enables the directionally resolved wideband measurement of dynamic effects. By exploiting the phase coherence of the setup, the multi-path components can be tracked over time, observing the temporal variations of the channel characteristics. This paper presents results of the human body shadowing in an outdoor (plaza) environment at two different link distances: 5 m and 10 m. We then analyze results corresponding to the assumption of fixed beams with different beamwidth, a 12° directional single beam and a 102° sectoral combined beam. More importantly, for the first time, the time-varying angular power spectrum and the temporal evolutions of the mean angle and the angular spread statistics in a dynamic channel of walking pedestrians are presented, which cannot be measured with traditional horn antenna channel sounders.