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Paper Abstract and Keywords
Presentation 2008-01-24 11:10
A Study on the Reduction of Diffusion Time for on Demand Content Distribution
Kumiko Takeda, Kenta Umebayashi, Yukihiro Kamiya, Yasuo Suzuki (TUAT) SIP2007-133 RCS2007-136
Abstract (in Japanese) (See Japanese page) 
(in English) This report studies a relation between transmit power and diffusion time for on-demand content distribution in wireless local area network(LAN) in order to reduce diffusion time.The assumed network is constructed from central control station including content server, a number of access point (AP) and nodes corresponding to an end user.Traditional on-demand content distribution only uses “infrastructure communication” which is a link between AP and node.On the other hand, we use not only infrastructure communication but also “ad-hoc communication” which is a direct link between node and node.By Ad-hoc communication, lead to more number of simultaneous communications can be achieved because of reuse of space and effect of diversity and it lead to reduction of diffusion time (diffusion time is defined as the time until all nodes obtain required content).On the other hand, transmit power of node for ad-hoc communication affect ratio of reduced diffusion time because transmit power of node affect data rate and number of simultaneous communications.This report focus on this point, intend to discover a relation between transmit power of node and diffusion time.And we study this relation how much affected by density of node per content with computer simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless LAN / On-Demand Content Distribution / Direct Communication / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 440, RCS2007-136, pp. 13-18, Jan. 2008.
Paper # RCS2007-136 
Date of Issue 2008-01-17 (SIP, RCS) 
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 SIP2007-133 RCS2007-136

Conference Information
Committee RCS SIP  
Conference Date 2008-01-24 - 2008-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City Uni. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2008-01-RCS-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the Reduction of Diffusion Time for on Demand Content Distribution 
Sub Title (in English)  
Keyword(1) Wireless LAN  
Keyword(2) On-Demand Content Distribution  
Keyword(3) Direct Communication  
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1st Author's Name Kumiko Takeda  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
3rd Author's Name Yukihiro Kamiya  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
4th Author's Name Yasuo Suzuki  
4th Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Speaker Author-1 
Date Time 2008-01-24 11:10:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2007-133, RCS2007-136 
Volume (vol) vol.107 
Number (no) no.438(SIP), no.440(RCS) 
Page pp.13-18 
#Pages 6 
Date of Issue 2008-01-17 (SIP, RCS) 

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