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Paper Abstract and Keywords
Presentation 2023-01-27 13:10
Estimation of Human Blockage Characteristics for Indoor Propagation in a Local-5G Frequency Band Using Large Scale FDTD Analysis
Kazuki Yoshida, Takashi Hikage, Manabu Omiya (Hokkaido Univ.) EMCJ2022-82
Abstract (in Japanese) (See Japanese page) 
(in English) Local 5G, the fifth-generation mobile communication system (5G) that companies and local governments can construct flexibly within their buildings or on specific sites, is being developed and demonstrated. This paper presents a quantitative evaluation of the effect of human shadowing on the propagation characteristics of the local 5G frequency band in an indoor environment. A conference room containing multiple human bodies was modeled with high accuracy, and propagation characteristics were evaluated by a large-scale three-dimensional numerical analysis based on the FDTD method. We set up a 4.7 GHz transmitting antenna that simulated a base station antenna in the conference room and discussed the differences in the characteristics of the electromagnetic field strength distribution in the entire conference room due to the presence or absence of human bodies. In the simulation, we evaluated the effects of human body shadowing or scattering under conditions like those in actual use by placing multiple human body models corresponding to changes in posture.
Keyword (in Japanese) (See Japanese page) 
(in English) Human body shadowing / Propagation characteristics / FDTD method / Local-5G frequency band / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 372, EMCJ2022-82, pp. 56-59, Jan. 2023.
Paper # EMCJ2022-82 
Date of Issue 2023-01-20 (EMCJ) 
ISSN Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EMCJ  
Conference Date 2023-01-27 - 2023-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) WASHU BLUE RESORT 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2023-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of Human Blockage Characteristics for Indoor Propagation in a Local-5G Frequency Band Using Large Scale FDTD Analysis 
Sub Title (in English)  
Keyword(1) Human body shadowing  
Keyword(2) Propagation characteristics  
Keyword(3) FDTD method  
Keyword(4) Local-5G frequency band  
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1st Author's Name Kazuki Yoshida  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Takashi Hikage  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Manabu Omiya  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2023-01-27 13:10:00 
Presentation Time 20 minutes 
Registration for EMCJ 
Paper # EMCJ2022-82 
Volume (vol) vol.122 
Number (no) no.372 
Page pp.56-59 
#Pages 4 
Date of Issue 2023-01-20 (EMCJ) 

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