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Paper Abstract and Keywords
Presentation 2012-01-18 13:40
FDTD Analysis of Propagation Characteristics of Wireless Communications in Crowded Train Cars
Takashi Hikage, Yohei Irie, Toshio Nojima (Hokkaido Univ.), Wataru Yamada, Takatoshi Sugiyama (NTT) AP2011-153
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, some railway companies have begun in-car wireless LAN service. The aim of this study is to develop an accurate and reliable method of estimating electromagnetic field (EMF) distributions in train cars so as to advance radio link design of wireless LANs operated inside the cars. This paper uses FDTD technique and a large-scale parallel computing technique to estimate the propagation characteristics of the typical train car model. EMF distributions created by a 5.2 GHz wireless transmitter inside the train car are analyzed and propagation characteristics are determined from the analysis results. Additionally, in order to estimate the effect of the absorption by the passengers’ bodies, we derive simplified histograms of the electric field distributions throughout the whole interior of the car.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless LAN / train cars / propagation characteristics / large-scale FDTD analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 376, AP2011-153, pp. 43-46, Jan. 2012.
Paper # AP2011-153 
Date of Issue 2012-01-11 (AP) 
ISSN Print edition: ISSN 0913-5685    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 AP2011-153

Conference Information
Committee AP  
Conference Date 2012-01-18 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Inst. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AP 
Conference Code 2012-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) FDTD Analysis of Propagation Characteristics of Wireless Communications in Crowded Train Cars 
Sub Title (in English)  
Keyword(1) wireless LAN  
Keyword(2) train cars  
Keyword(3) propagation characteristics  
Keyword(4) large-scale FDTD analysis  
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1st Author's Name Takashi Hikage  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Yohei Irie  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Toshio Nojima  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Wataru Yamada  
4th Author's Affiliation NTT Corporation (NTT)
5th Author's Name Takatoshi Sugiyama  
5th Author's Affiliation NTT Corporation (NTT)
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Speaker Author-1 
Date Time 2012-01-18 13:40:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2011-153 
Volume (vol) vol.111 
Number (no) no.376 
Page pp.43-46 
#Pages 4 
Date of Issue 2012-01-11 (AP) 

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