Influence of diffraction on indoor propagation channel at terahertz frequencies

被引：0
|
作者：
Li Y. [1 ]
Jing Q. [1 ]
Yang L. [2 ]
机构：
[1] College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing
[2] The 504th Research Institution, China Aerospace Science and Technology Corporation, Xi'an
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2019年 / 41卷 / 11期
关键词：
Communication; Diffraction modeling; Ray-tracking method; Terahertz wave;
D O I：
10.3969/j.issn.1001-506X.2019.11.28
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Due to the sufficient bandwidth and high free space attenuation, future indoor wireless communication systems are expected to work in the terahertz band. In indoor wave propagation channels of such systems, reverberation and diffraction occur at a multitude of objects and hence must be considered for propagation simulations. Although the relevance of diffraction has been thoroughly studied at lower frequency ranges, it has not yet been analyzed methodically in the terahertz wave frequency range. In this paper, the uniform diffraction theory and atmospheric absorption attenuation theory are applied to study the diffraction of typical wedge geometry at 350 GHz. And ray-tracking method is adopted in order to compare the influence of material, roughness and incident angle on the diffraction power. Finally, the double-edge diffraction method is applied to simulate the impact of diffraction on the terahertz wave indoor channel characteristics when humans walk indoor. © 2019, Editorial Office of Systems Engineering and Electronics. All right reserved.
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收藏
页码：2625 / 2632
页数：7
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