Measurement and modeling of indoor off-body channel in the 9.5～10.5 GHz band

Shanhu HUANG; Jun SUN; Haofei CHANG; Wenjun LV; Qin YANG

doi:10.11959/j.issn.2096-3750.2022.00263

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Measurement and modeling of indoor off-body channel in the 9.5～10.5 GHz band

Theory and Technology | 更新时间：2024-06-05

- Measurement and modeling of indoor off-body channel in the 9.5～10.5 GHz band
- Chinese Journal on Internet of Things Vol. 6, Issue 2, Pages: 117-126(2022)
- 作者机构：
  
  1. 南京邮电大学，江苏南京 210003
  2. 江苏省无线通信重点实验室，江苏南京 210003
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-3750.2022.00263
  CLC： TN929.5
- Published：30 June 2022，
  
  Published Online：2022-06，
- 稿件说明：
移动端阅览
SHANHU HUANG, JUN SUN, HAOFEI CHANG, et al. Measurement and modeling of indoor off-body channel in the 9.5～10.5 GHz band. [J]. Chinese journal on internet of things, 2022, 6(2): 117-126.
DOI：

SHANHU HUANG, JUN SUN, HAOFEI CHANG, et al. Measurement and modeling of indoor off-body channel in the 9.5～10.5 GHz band. [J]. Chinese journal on internet of things, 2022, 6(2): 117-126. DOI： 10.11959/j.issn.2096-3750.2022.00263.

摘要

为探索高频段室内离体信道的无线传播特性，对9.5～10.5 GHz频段多个典型室内场景进行离体信道测量。在大尺度衰落方面，通过研究路径损耗发现人体遮挡因子与旋转角度呈正弦函数关系，并与收发端距离呈现负指数关系，因此建立距离与角度联合相关的新型路径损耗模型，并根据阴影衰落统计特性证明新模型的精确性与适用性。在小尺度衰落方面，通过分析路径损耗与均方根（RMS

root mean square）时延扩展的线性相关性，获得距离与角度相关的新型 RMS 时延扩展模型。证明了收发端距离与人体旋转产生的遮挡因子越大，路径损耗和多径衰落也越严重。新型离体信道模型可用于设计物联网环境体域网（BAN

body area network）的离体链路，为未来的室内无线通信系统提供理论与实践基础。

Abstract

In order to explore the wireless propagation characteristics of high-frequency indoor off-body channel

off-body channel measurements were carried out on multiple typical indoor scenes in the 9.5～10.5 GHz frequency band.In terms of large-scale fading

through studying the path loss

it is found that the human body occlusion factor has a sine function relationship with the rotation angle

and a negative exponential relationship with the distance between the receiver and transmitter.Therefore

a new type of off-body channel loss model related to distance and angle was established

and the accuracy and applicability of the new model was proved based on the shadow fading.In terms of small-scale fading

by analyzing the linear correlation between path loss and root mean square (RMS) delay spread

a new type of RMS delay spreading model related to distance and angle was obtained.It proves that the greater the distance between the antenna at the transceiver end and the occlusion factor caused by the rotation of the human body

the more severe the path loss and multipath fading.The new channel model can be used to design the off-body link of the internet of things environment body area network (BAN)

providing a theoretical and practical basis for the future design of indoor wireless communication systems.

关键词

离体信道测量路径损耗RMS时延扩展多径衰落

Keywords

off-body channel measurementpath lossRMS delay spreadmultipath fading

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