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Paper Abstract and Keywords
Presentation 2016-03-25 13:55
Hierarchical Cache Strategies for VOD Networks with Popularity Change
Takuma Nakajima, Takayuki Shiroma, Masato Yoshimi, Celimuge Wu, Tsutomu Yoshinaga (UEC) CPSY2015-154 DC2015-108
Abstract (in Japanese) (See Japanese page) 
(in English) Rapid growing Video-On-Demand (VOD) services to incur user experiences become a primary source of high traffic load of the network fabric. Several mechanisms to install cache servers in the intermediate network have been introduced to reduce traffic by eliminating repetitive delivery of popular contents data. Conventional cache methodology is always required to improve the cache efficiency to follow the requests that frequently switch places according to a trend of users' interest and an introduction of new videos and suggestions. This report proposes a heterogeneous cache strategies to reduce video streaming traffic. The hybrid strategy adopts the combination of LFU that improves cache hit ratio and LRU that follows fluctuation of the popularity of the contents. Our simulation results on layered cache network show that the hybrid cache strategy reduces traffic by maintaining high hit ratio even varying contents popularity.
Keyword (in Japanese) (See Japanese page) 
(in English) Traffic reduction / Video-on-demand / Cache server / trend adaptation / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 518, CPSY2015-154, pp. 247-252, March 2016.
Paper # CPSY2015-154 
Date of Issue 2016-03-17 (CPSY, DC) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CPSY2015-154 DC2015-108

Conference Information
Committee CPSY DC IPSJ-SLDM IPSJ-EMB IPSJ-ARC  
Conference Date 2016-03-24 - 2016-03-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukue Bunka Hall/Rodou Fukushi Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ETNET2016 
Paper Information
Registration To CPSY 
Conference Code 2016-03-CPSY-DC-SLDM-EMB-ARC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Hierarchical Cache Strategies for VOD Networks with Popularity Change 
Sub Title (in English)  
Keyword(1) Traffic reduction  
Keyword(2) Video-on-demand  
Keyword(3) Cache server  
Keyword(4) trend adaptation  
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1st Author's Name Takuma Nakajima  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Takayuki Shiroma  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Masato Yoshimi  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name Celimuge Wu  
4th Author's Affiliation The University of Electro-Communications (UEC)
5th Author's Name Tsutomu Yoshinaga  
5th Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2016-03-25 13:55:00 
Presentation Time 25 minutes 
Registration for CPSY 
Paper # CPSY2015-154, DC2015-108 
Volume (vol) vol.115 
Number (no) no.518(CPSY), no.519(DC) 
Page pp.247-252 
#Pages
Date of Issue 2016-03-17 (CPSY, DC) 


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