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Presentation 2019-07-18 13:00
[Poster Presentation] A Study on Fairness of Video Streaming Applications with Different Congestion Control Algorithms
Tomotaka Matsumoto, Koki Goto, Kenichi Matsusita, Miki Yamamoto (Kansai Univ.) CQ2019-47
Abstract (in Japanese) (See Japanese page) 
(in English) In MPEG-DASH (MPEG Dynamic Adaptive Streaming over HTTP), a standard for video playback, ABR(Adaptive Bit Rate)is utilized. A chunk of video data called segment is transmitted by TCP and its coding rate is selected by the ABR algorithm. There are many versions of TCP algorithms, and it is general that the installed TCP algorithm is different for the OS, e.g. Linux and Windows, of the end host. In this paper, we evaluate application-perceived fairness between two end hosts implementing the same ABR algorithm on two different TCP algorithms. Our evaluation results by computer simulation experiments show that congestion window has large amount of unused space at the beginning of each video segment. This is because many ACKs are received with no data transmission at the end of each video segments. As a result, we observe many packet losses because the video segment packets are transmitted in a bursty manner at the beginning of the next video segment. This burst loss occurs with high probability for the TCP algorithms which generally obtain high throughput. We confirm that this behavior slightly improves unfairness between two TCP algorithms. These results show that interaction between the application layer and the transport layer brings slight fairness improvement when compared to the situation that TCP with greedy source model, i.e. application layer has no regulation of data transmission rate.
Keyword (in Japanese) (See Japanese page) 
(in English) Streaming / Congestion Control / Fairness / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 125, CQ2019-47, pp. 61-62, July 2019.
Paper # CQ2019-47 
Date of Issue 2019-07-11 (CQ) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 CQ2019-47

Conference Information
Committee CQ  
Conference Date 2019-07-18 - 2019-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Assessment, Measurement and Control of QoE and QoS, etc. 
Paper Information
Registration To CQ 
Conference Code 2019-07-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Fairness of Video Streaming Applications with Different Congestion Control Algorithms 
Sub Title (in English)  
Keyword(1) Streaming  
Keyword(2) Congestion Control  
Keyword(3) Fairness  
1st Author's Name Tomotaka Matsumoto  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Koki Goto  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name Kenichi Matsusita  
3rd Author's Affiliation Kansai University (Kansai Univ.)
4th Author's Name Miki Yamamoto  
4th Author's Affiliation Kansai University (Kansai Univ.)
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Speaker Author-1 
Date Time 2019-07-18 13:00:00 
Presentation Time 90 minutes 
Registration for CQ 
Paper # CQ2019-47 
Volume (vol) vol.119 
Number (no) no.125 
Page pp.61-62 
Date of Issue 2019-07-11 (CQ) 

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