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Paper Abstract and Keywords
Presentation 2015-01-23 15:00
A hop-based QoS control method for end-to-end communication in SDN
Shunsuke Tokunaga, Shogo Ando, Akihiro Nakao (UT) NS2014-175
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed a mechanism for extending data plane elements to enabling a network function for QoS control by per-application WFQ.
In this paper, we propose a new method for improving bandwidth utilization in network congestion by setting different priorities in queues at network nodes according to the number of hops in end-to-end communications especially for 4K/8K video streaming applications.
In general, there is an obvious problem in network congestion that when a packet loss occurs near the destination, the bandwidth for passing that packet near the source ends up being wasted. In order to resolve this issue, we propose a new SDN QoS control method that centrally manages network nodes and
set priorities in transmission so that the closer a network node is located to the destination for a given flow, the higher priority it gets for transmitting it.
The evaluation of our proposed method by NS-3 reveals that in case of UDP flows, setting gradually increasing priority for transmission as a flow gets close to the destination leads to 53% reduction of the sum of packet loss weighted with hop counts. For TCP flows, at a node before the bandwidth bottleneck link, setting a high priority for transmission to a flow traversing a large number of hops increases the bandwidth utilization of that flow by more than twice.
Keyword (in Japanese) (See Japanese page) 
(in English) SDN / NFV / WFQ / Software Defined-Data Plane / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 400, NS2014-175, pp. 75-80, Jan. 2015.
Paper # NS2014-175 
Date of Issue 2015-01-15 (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 NS2014-175

Conference Information
Committee NS  
Conference Date 2015-01-22 - 2015-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Hachijo-cho-City-Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Software, Network Application, SOA/SDP, NGN/IMS/API, Distributed Control/Dynamic Routing, Grid 
Paper Information
Registration To NS 
Conference Code 2015-01-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A hop-based QoS control method for end-to-end communication in SDN 
Sub Title (in English)  
Keyword(1) SDN  
Keyword(2) NFV  
Keyword(3) WFQ  
Keyword(4) Software Defined-Data Plane  
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1st Author's Name Shunsuke Tokunaga  
1st Author's Affiliation University of Tokyo (UT)
2nd Author's Name Shogo Ando  
2nd Author's Affiliation University of Tokyo (UT)
3rd Author's Name Akihiro Nakao  
3rd Author's Affiliation University of Tokyo (UT)
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Speaker Author-1 
Date Time 2015-01-23 15:00:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2014-175 
Volume (vol) vol.114 
Number (no) no.400 
Page pp.75-80 
#Pages 6 
Date of Issue 2015-01-15 (NS) 

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