Paper Abstract and Keywords |
Presentation |
2012-01-26 15:20
A Survey on Immediacy of Mail Transfers from Mobile-phones Tohru Asami, Manabu Isomura, Wei Zhu, Yoshihiro Kawahara (Todai) IN2011-125 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
At the Tohoku Earthquake on 11 March 2011, mobile operators applied originator regurations from 70% to 90% to their phone services, and could not provide sufficient qualities of services to their users. Considering the less traffic increase of packet communications observed, mobile carriers decided to make a common specification for voice mail exchanges. This quake also showed the large e-mail transfer latency. This paper aims to show the real mail transfer strategies adopted by mobile carriers. To analyze the mail strategies, maillogs are collected, letting tens of mobile phone users in a cell send e-mails within 5 minutes to a target mail server, which uses greylisting to reject any email from a sender for a while. Large periods of salvo retransmission strategies are observed, which will lead to a pulsation effect to e-mail traffic for a long time and make difficult an earlier recovery from the congestions. Thus from the point of lifeline service, the current e-mail services are vulnerable to satisfy the immediacy of mail transfers. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
The Tohoku Earthquake / e-mail transfer strategy / voice mail / congestion avoidance / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 409, IN2011-125, pp. 29-34, Jan. 2012. |
Paper # |
IN2011-125 |
Date of Issue |
2012-01-19 (IN) |
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) |
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IN2011-125 |
Conference Information |
Committee |
IN |
Conference Date |
2012-01-26 - 2012-01-27 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Asahikawa-Terminal-Hotel |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
overlay networks, P2P networks, autonomous distributed networks, etc |
Paper Information |
Registration To |
IN |
Conference Code |
2012-01-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Survey on Immediacy of Mail Transfers from Mobile-phones |
Sub Title (in English) |
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Keyword(1) |
The Tohoku Earthquake |
Keyword(2) |
e-mail transfer strategy |
Keyword(3) |
voice mail |
Keyword(4) |
congestion avoidance |
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1st Author's Name |
Tohru Asami |
1st Author's Affiliation |
University og Tokyo (Todai) |
2nd Author's Name |
Manabu Isomura |
2nd Author's Affiliation |
University og Tokyo (Todai) |
3rd Author's Name |
Wei Zhu |
3rd Author's Affiliation |
University og Tokyo (Todai) |
4th Author's Name |
Yoshihiro Kawahara |
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University og Tokyo (Todai) |
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Speaker |
Author-1 |
Date Time |
2012-01-26 15:20:00 |
Presentation Time |
25 minutes |
Registration for |
IN |
Paper # |
IN2011-125 |
Volume (vol) |
vol.111 |
Number (no) |
no.409 |
Page |
pp.29-34 |
#Pages |
6 |
Date of Issue |
2012-01-19 (IN) |
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