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Paper Abstract and Keywords
Presentation 2007-01-24 15:35
The Mail Roaming System over Multilink onboard Trains
Kazuhiro Yamada, Seiji Imai (CJRC), Yuichi Tanaka, Kinya Asano (Oki) SIP2006-132 RCS2006-190
Abstract (in Japanese) (See Japanese page) 
(in English) It is difficut to deploy a broadband communication system onto the entire track of an intercity high speed rail from technical and financial aspects. One of the solutions to this issue is a combined system of narrow band communication of Mega bps on the entire track and broadband spot communication of tens of Mbps on some specific sections.
On the other hand, e-mailing by passengers is done at any time while traveling. When e-mail with large size attachments is tried to sent on a narrowband section, the performance must be very stressful. The priority of e-mailing is generally low and the delay does not cause issues. Therefore the transmission of e-mail on a narrowband section should be avoided but done on a broadband section at a burst. Even in this case the system has to provide users with e-mailing service as usual no matter where a train is running. This paper presents “the Mail Roaming System (MRS)” which tranmsits e-mail with large size attachments only on broadband sections with a full-time confortable e-mailing service to users.
Keyword (in Japanese) (See Japanese page) 
(in English) Wifi on bullet Trains / Mail Roaming / Mobile IP / IP tunneling / Wireless LAN / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 478, RCS2006-190, pp. 87-92, Jan. 2007.
Paper # RCS2006-190 
Date of Issue 2007-01-17 (SIP, RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 SIP2006-132 RCS2006-190

Conference Information
Committee RCS SIP  
Conference Date 2007-01-24 - 2007-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT Okinawa 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-01-RCS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The Mail Roaming System over Multilink onboard Trains 
Sub Title (in English)  
Keyword(1) Wifi on bullet Trains  
Keyword(2) Mail Roaming  
Keyword(3) Mobile IP  
Keyword(4) IP tunneling  
Keyword(5) Wireless LAN  
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1st Author's Name Kazuhiro Yamada  
1st Author's Affiliation Central Japan Railway Company (CJRC)
2nd Author's Name Seiji Imai  
2nd Author's Affiliation Central Japan Railway Company (CJRC)
3rd Author's Name Yuichi Tanaka  
3rd Author's Affiliation Oki Electric Industry Co., Ltd. (Oki)
4th Author's Name Kinya Asano  
4th Author's Affiliation Oki Electric Industry Co., Ltd. (Oki)
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Speaker Author-1 
Date Time 2007-01-24 15:35:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # SIP2006-132, RCS2006-190 
Volume (vol) vol.106 
Number (no) no.475(SIP), no.478(RCS) 
Page pp.87-92 
#Pages
Date of Issue 2007-01-17 (SIP, RCS) 


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