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Paper Abstract and Keywords
Presentation 2018-07-20 13:25
A Study of Queue Length Control in TCP/AQM Networks Considering Buffer Capacity
Ryosuke Hotchi, Ryogo Kubo (Keio Univ.) CQ2018-39
Abstract (in Japanese) (See Japanese page) 
(in English) In the modern world where many devices all around the world communicate with each other, the total amount of the communication traffics is increasing at an accelerating rate. Therefore, the congestion of the traffic flows has been a serious problem. The most used communication protocol world wide called TCP (Transmission Control Protocol) is known to degrade its communication performance when confronted with a network flow congestion. In order to deal with this problem, a congestion control method called AQM (Acive Queue Management) has been proposed, and various studies have been done. As a combination of control theory and AQM, an AQM congestion control method using PID (Proportional-Integral-Derivative) controller has been proposed. The AQM based on control theory utilizes a preset parameter called target queue length, but this value was set heuristically in existing studies and the router's buffering capacity was not fully utilized. In our previous research, we have presented a study of an algorithm which dynamically controls this target queue length in order to more efficiently utilize the buffering capacity. In this report, we consider the effect of different RTT (Round-Trip Time) and size of buffering capacity. The simulation results confirm the effectiveness of the proposal algorithm.
Keyword (in Japanese) (See Japanese page) 
(in English) TCP / AQM / PID / Congestion Control / Target Queue Length / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 140, CQ2018-39, pp. 45-50, July 2018.
Paper # CQ2018-39 
Date of Issue 2018-07-12 (CQ) 
ISSN Online edition: ISSN 2432-6380
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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 CQ2018-39

Conference Information
Committee CQ  
Conference Date 2018-07-19 - 2018-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku 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 2018-07-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Queue Length Control in TCP/AQM Networks Considering Buffer Capacity 
Sub Title (in English)  
Keyword(1) TCP  
Keyword(2) AQM  
Keyword(3) PID  
Keyword(4) Congestion Control  
Keyword(5) Target Queue Length  
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1st Author's Name Ryosuke Hotchi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Ryogo Kubo  
2nd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2018-07-20 13:25:00 
Presentation Time 25 minutes 
Registration for CQ 
Paper # CQ2018-39 
Volume (vol) vol.118 
Number (no) no.140 
Page pp.45-50 
#Pages
Date of Issue 2018-07-12 (CQ) 


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