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Paper Abstract and Keywords
Presentation 2015-06-18 12:30
Evaluation of Video Caching at Routers for Reduction of Network Energy Consumption
Harumasa Tada (Kyoto Univ. Education), Masayuki Murata, Morito Matsuoka, Go Hasegawa (Osaka Univ.), Nobuhiko Yamashita (NTT) IN2015-15
Abstract (in Japanese) (See Japanese page) 
(in English) In CCN (Content Centric Networking), caching contents in routers reduces network engery consumption.In this paper, we focused video sharing services such as Youtube and examined how the storage capacity of routers affects the reduction rate of network energy consumption in hierarchical networks.We performed simulations using the workloads based on Youtube access logs collected at a university.We found that the reduction ratio depends on the geographical locality of acccesses and it reached a maximum of 35%.We also found that we should employ more storage capacity to higher level routers than to edge routers in order to improve the reduction ratio.Moreover, we showed that using two caches to prefer the prefix of contents can reduce the ratio of delayed starts of video playback while keeping high reduction ratio of energy consumption.
Keyword (in Japanese) (See Japanese page) 
(in English) CCN / Youtube / geographical locality / temporal locality / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 95, IN2015-15, pp. 1-6, June 2015.
Paper # IN2015-15 
Date of Issue 2015-06-11 (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 IN2015-15

Conference Information
Committee IN  
Conference Date 2015-06-18 - 2015-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyama International Conference Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Home Area Network (HAN), Green/Energy Saving ICT, Smart Grid, Contingency Plan/BCP, Data Analysis/Processing Platform, Big Data, etc. 
Paper Information
Registration To IN 
Conference Code 2015-06-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Video Caching at Routers for Reduction of Network Energy Consumption 
Sub Title (in English)  
Keyword(1) CCN  
Keyword(2) Youtube  
Keyword(3) geographical locality  
Keyword(4) temporal locality  
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1st Author's Name Harumasa Tada  
1st Author's Affiliation Kyoto University of Education (Kyoto Univ. Education)
2nd Author's Name Masayuki Murata  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Morito Matsuoka  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Go Hasegawa  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Nobuhiko Yamashita  
5th Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2015-06-18 12:30:00 
Presentation Time 25 minutes 
Registration for IN 
Paper # IN2015-15 
Volume (vol) vol.115 
Number (no) no.95 
Page pp.1-6 
#Pages 6 
Date of Issue 2015-06-11 (IN) 

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