Modeling Human Blockage at 5G Millimeter-Wave Frequencies
Modeling Human Blockage at 5G Millimeter-Wave Frequencies
复制标题
5G 毫米波频率下的人体阻塞建模
DOI：
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发表时间：
2020
影响因子：
5.7
通讯作者：
K. Haneda
中科院分区：
文献类型：
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作者：
U. Virk;K. Haneda
毫米波（mm波）频谱揭示了对无线数据速率的巨大和不断加速的需求，因此，它将成为第五代（5G）无线技术的基本组成部分。在毫米波接入链路的情况下，人是从接入点到移动的站的电磁波的最明显的阻挡者，并且因此引起无线电信道中的时间变化。本文介绍了在消声室在15，28，和60 GHz的频率，采用15个不同大小和重量的人受试者的人体阻塞测量。一个有效的三维人体堵塞模型的双截断多刀边（DTMKE）计划也被提出。通过从DTMKE计算衍射，与现有的模型（例如吸收双刀口模型和第三代合作伙伴计划（3GPP）人体阻塞模型）相比，最准确地再现了阻塞的频率、身体取向和天线高度依赖性。结果表明，损耗与人体相对于无线电链路的横截面成正比。此外，阻塞损耗随着发射天线的高度增加而减小。
Millimeter-wave (mm-wave) spectrum unravels the humongous and accelerating demand for wireless data rates and, therefore, it will be a fundamental ingredient of the fifth-generation (5G) wireless technology. In case of mm-wave access links, humans are the most noticeable blockers of electromagnetic waves from access points to mobile stations and hence cause temporal variation in the radio channel. This article presents human blockage measurements in the anechoic chamber at 15, 28, and 60 GHz frequencies employing 15 human subjects of different sizes and weights. An effective 3-D human blockage model as a double-truncated multiple knife-edge (DTMKE) scheme is also proposed. By calculating diffraction from the DTMKE, the frequency, body orientation, and antenna height dependence of the blockage are most accurately reproduced compared to the existing models, such as absorbing double knife-edge model and third-generation partnership project (3GPP) human blockage model. The results demonstrate that the losses are proportional to the cross section of the human body with respect to the radio link. Furthermore, the blockage loss decreases as the height of the transmitting antenna increases.