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Paper Abstract and Keywords
Presentation 2010-03-05 08:50
Relaxation times of information gatherings in the epidemically information sharing process with mobile sensors
Akihiro Fujihara, Hiroyoshi Miwa (Kwansei Gakuin Univ.) IN2009-182
Abstract (in Japanese) (See Japanese page) 
(in English) We theoretically investigated a general property of data gathering times

in a wireless communication system with randomly moving sensors which

share data only with nearby ones. We proposed a stochastic model of

the system to analyse distribution functions of data gathering times
on regular and defected square grid graph and Watts-Strogatz (WS) graphs.

We found that the time distribution asymptotically obeys a exponential decay.

We defined a relaxation time of the decay, which denotes the speed of
information gathering, and examined the dependence of the number of sensors
$N$ and the system size $L$. We also found scaling relations of the
relaxation times with $N$ and $L$ in regular square grid graphs at $d=1,2,3$.
In defected square grid graphs and WS graphs, we found that there is a
strong correlation between the relaxation time and the graph radius.
Keyword (in Japanese) (See Japanese page) 
(in English) Delay- and Disruption-Tolerant Network / Opportunistic Communication Network / Information gathering time / Exponential distribution / Relaxation time / Graph radius / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 449, IN2009-182, pp. 229-234, March 2010.
Paper # IN2009-182 
Date of Issue 2010-02-25 (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)
Download PDF IN2009-182

Conference Information
Committee NS IN  
Conference Date 2010-03-04 - 2010-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyazaki Phoenix Seagaia Resort (Miyazaki) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General, NS+IN workshop (March 4-5) 
Paper Information
Registration To IN 
Conference Code 2010-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Relaxation times of information gatherings in the epidemically information sharing process with mobile sensors 
Sub Title (in English)  
Keyword(1) Delay- and Disruption-Tolerant Network  
Keyword(2) Opportunistic Communication Network  
Keyword(3) Information gathering time  
Keyword(4) Exponential distribution  
Keyword(5) Relaxation time  
Keyword(6) Graph radius  
Keyword(7)  
Keyword(8)  
1st Author's Name Akihiro Fujihara  
1st Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
2nd Author's Name Hiroyoshi Miwa  
2nd Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
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Speaker Author-1 
Date Time 2010-03-05 08:50:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2009-182 
Volume (vol) vol.109 
Number (no) no.449 
Page pp.229-234 
#Pages 6 
Date of Issue 2010-02-25 (IN) 

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