Propagation Channel Comparison between 23.5 and 45 GHz in Conference Scenario

Q4 Engineering

工程设计学报 Pub Date : 2016-03-15 DOI:10.1155/2016/7124267

Jianwu Dou, N. Zhang, Li Tian, Xiaoyi Yang, Xi Yuan, Suping Mei, Haiming Wang

引用次数: 3

Abstract

The characteristics of propagation channel at 23.5 and 45 GHz in an indoor conference room are studied based on hybrid approach. A ray-based simulator which includes the reflection, penetration, diffraction, and diffuse scattering is adopted to generate the massive channel realizations. This platform is well calibrated in path and power delay profile (PDP) levels according to some specified measurements at different frequencies. Subsequently, according to the simulated channel samples, the statistical channel model for both the large and small scale characteristics is established based on the alpha-beta approach and extended Saleh-Valenzuela (S-V) structure, respectively. Results show that the slope of fitted path loss (PL) is less than free space due to the waveguide effect for both 23.5 and 45 GHz in indoor scenario and larger PL is experienced at higher frequency. Additionally, the cluster is more centralized with less spreads and decaying faster in delay domain at 45 GHz.

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会议场景下23.5 GHz与45ghz传播信道比较

基于混合方法研究了室内会议室23.5 GHz和45 GHz传播信道的特性。采用了一个包含反射、穿透、衍射和漫射的射线模拟器来生成大量的通道实现。根据不同频率下的特定测量值，该平台在路径和功率延迟曲线(PDP)水平上进行了很好的校准。随后，根据模拟的通道样本，分别基于α - β方法和扩展的Saleh-Valenzuela (S-V)结构建立了大尺度和小尺度特征的统计通道模型。结果表明，在23.5 GHz和45 GHz的室内场景下，由于波导效应，拟合路径损耗(PL)的斜率小于自由空间，并且在更高的频率下经历更大的PL。此外，在45 GHz时，集群更集中，扩展更小，在延迟域衰减更快。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

工程设计学报 Engineering-Engineering (miscellaneous)

CiteScore

0.60

自引率

0.00%

发文量

2447

审稿时长

14 weeks

期刊介绍： Chinese Journal of Engineering Design is a reputable journal published by Zhejiang University Press Co., Ltd. It was founded in December, 1994 as the first internationally cooperative journal in the area of engineering design research. Administrated by the Ministry of Education of China, it is sponsored by both Zhejiang University and Chinese Society of Mechanical Engineering. Zhejiang University Press Co., Ltd. is fully responsible for its bimonthly domestic and oversea publication. Its page is in A4 size. This journal is devoted to reporting most up-to-date achievements of engineering design researches and therefore, to promote the communications of academic researches and their applications to industry. Achievments of great creativity and practicablity are extraordinarily desirable. Aiming at supplying designers, developers and researchers of diversified technical artifacts with valuable references, its content covers all aspects of design theory and methodology, as well as its enabling environment, for instance, creative design, concurrent design, conceptual design, intelligent design, web-based design, reverse engineering design, industrial design, design optimization, tribology, design by biological analogy, virtual reality in design, structural analysis and design, design knowledge representation, design knowledge management, design decision-making systems, etc.