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Paper Abstract and Keywords
Presentation 2011-10-13 14:50
High Efficient VOD System for Quick Seek
Takashi Isobe, Satoshi Tsutsumi (Hitachi) NS2011-93
Abstract (in Japanese) (See Japanese page) 
(in English) The quick seek of VOD is vital for a high level of user satisfaction. At the same time, many server resources are required to achieve the quick seek of VOD. In this research, to improve the efficiency of VOD system achieving quick seek, we proposed a load balancer that clusters two types of servers. Our system uses the acceleration servers to transmit initial video data at high throughput, and the normal servers to transmit the following video data at the video bit-rate. And, our load balancer switches the TCP connections from the acceleration servers to the normal servers after the acceleration servers transmit the initial data. The high-throughput transmissions of initial video data are aggregated into the acceleration servers. This can improve the efficiency of the server resource by the scale effect. We implemented our system, and confirmed the feasibility of that in an experimental environment. In addition, we simulated the relationship between the number of servers achieving the seek time equivalent to the conventional system and the number of users connectable to the servers, and we showed that our system could reduce the number of servers by 28-38% while keeping the service quality. Our system is expected to enhance the efficiency of the server resources.
Keyword (in Japanese) (See Japanese page) 
(in English) VOD / TCP / RTT / WAN / CDN / ロードバランサ / シークタイム /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 232, NS2011-93, pp. 63-68, Oct. 2011.
Paper # NS2011-93 
Date of Issue 2011-10-06 (NS) 
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 NS2011-93

Conference Information
Committee NS  
Conference Date 2011-10-13 - 2011-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Architecture (Overlay, P2P, Ubiquitous Network, Active Network, NGN, New Generation Network), Grid 
Paper Information
Registration To NS 
Conference Code 2011-10-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High Efficient VOD System for Quick Seek 
Sub Title (in English)  
Keyword(1) VOD  
Keyword(2) TCP  
Keyword(3) RTT  
Keyword(4) WAN  
Keyword(5) CDN  
Keyword(6) ロードバランサ  
Keyword(7) シークタイム  
Keyword(8)  
1st Author's Name Takashi Isobe  
1st Author's Affiliation Hitachi, Ltd., Central Research Laboratory (Hitachi)
2nd Author's Name Satoshi Tsutsumi  
2nd Author's Affiliation Hitachi, Ltd., Central Research Laboratory (Hitachi)
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Speaker Author-1 
Date Time 2011-10-13 14:50:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2011-93 
Volume (vol) vol.111 
Number (no) no.232 
Page pp.63-68 
#Pages 6 
Date of Issue 2011-10-06 (NS) 

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