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Paper Abstract and Keywords
Presentation 2022-07-25 09:30
[Poster Presentation] Consideration of radio wave attenuation due to shielding in the communication path in 220MHz band and 920MHz band outdoor communication experiments
Motonari Imai, Naoki Ikeda, Takato Ikegame, Tetsusi Ikegami (Meiji Univ.) WBS2022-21 MICT2022-21
Abstract (in Japanese) (See Japanese page) 
(in English) Currently, large-scale disaster response IoT (DR-IoT) using the 220 MHz band is under development. In this paper,
we evaluate the performance of DR-IoT by comparing the propagation loss between DR-IoT in the 220 MHz band and LoRa in
the 920 MHz band. Focusing mainly on the attenuation caused by buildings on campus, we will compare and investigate how
much the attenuation is affected by the LOS environment and the number of buildings blocking the communication path. We
will also compare the difference in PER (Packet Error Rate) between the 220 MHz band and the 920 MHz band depending on
the number of buildings. In addition to the demonstration experiment, we will evaluate the LOS environment using propagation
models such as free space propagation loss and two-wave models in the same environment, and examine whether the measured
values in the shielded environment are plausible.
Keyword (in Japanese) (See Japanese page) 
(in English) radio propagation / DR-IoT / propagation loss / PER / Building loss / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 131, WBS2022-21, pp. 24-29, July 2022.
Paper # WBS2022-21 
Date of Issue 2022-07-18 (WBS, MICT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
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)
Download PDF WBS2022-21 MICT2022-21

Conference Information
Committee MICT WBS  
Conference Date 2022-07-25 - 2022-07-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Prefectural University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wideband System, Healthcare and Medical Information Communication Technologies, Student Poster Session, etc. 
Paper Information
Registration To WBS 
Conference Code 2022-07-MICT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Consideration of radio wave attenuation due to shielding in the communication path in 220MHz band and 920MHz band outdoor communication experiments 
Sub Title (in English)  
Keyword(1) radio propagation  
Keyword(2) DR-IoT  
Keyword(3) propagation loss  
Keyword(4) PER  
Keyword(5) Building loss  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Motonari Imai  
1st Author's Affiliation Meiji University (Meiji Univ.)
2nd Author's Name Naoki Ikeda  
2nd Author's Affiliation Meiji University (Meiji Univ.)
3rd Author's Name Takato Ikegame  
3rd Author's Affiliation Meiji University (Meiji Univ.)
4th Author's Name Tetsusi Ikegami  
4th Author's Affiliation Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2022-07-25 09:30:00 
Presentation Time 75 minutes 
Registration for WBS 
Paper # WBS2022-21, MICT2022-21 
Volume (vol) vol.122 
Number (no) no.131(WBS), no.132(MICT) 
Page pp.24-29 
#Pages 6 
Date of Issue 2022-07-18 (WBS, MICT) 

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