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Paper Abstract and Keywords
Presentation 2018-12-21 14:20
A TCP Fairness Control Method for Concurrent Communications in Elastic WLAN System Using Raspberry Pi Access-Point
Rahardhita Widyatra Sudibyo, Nobuo Funabiki, Minoru Kuribayashi, Kwenga Ismael Munene, Md. Manowarul Islam (Okayama Univ.), Wen-Chung Kao (National Taiwan Normal Univ.) NS2018-175
Abstract (in Japanese) (See Japanese page) 
(in English) The IEEE802.11n wireless local-area network (WLAN) has been extensively deployed as inexpensive and flexible Internet access services. We have studied the elastic WLAN system that dynamically changes the network configuration depending on traffic demands, to reduce the energy consumption while enhancing the performance. As well, we implemented the testbed using Raspberry Pi for the software access-point (AP) as a portable, energy conservation, and powerful computing device. Our testbed experiments revealed that concurrent TCP communications of multiple hosts with a single AP cause unfairness in throughput performances, because the TCP window size becomes different among them. In this paper, we propose the TCP fairness control method for the elastic WLAN system using Raspberry Pi APs, where the transmission delay is introduced at the communication with the faster host in order to provide the slower host with more transmission opportunities. Then, the faster host reduces the throughput, while the slower host increases it. The delay is initially estimated by the received signal strength (RSS) from each host, and then, is dynamically controlled to balance both throughputs. To verify the effectiveness, we implement the proposal in the elastic WLAN system testbed and conduct experiments using two hosts. The results confirm the fairness of TCP throughputs among them.
Keyword (in Japanese) (See Japanese page) 
(in English) WLAN / Raspberry Pi / TCP fairness control / transmission delay / testbed / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 371, NS2018-175, pp. 95-100, Dec. 2018.
Paper # NS2018-175 
Date of Issue 2018-12-13 (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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NS2018-175

Conference Information
Committee RCS NS  
Conference Date 2018-12-20 - 2018-12-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Onomichi City Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network 
Paper Information
Registration To NS 
Conference Code 2018-12-RCS-NS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A TCP Fairness Control Method for Concurrent Communications in Elastic WLAN System Using Raspberry Pi Access-Point 
Sub Title (in English)  
Keyword(1) WLAN  
Keyword(2) Raspberry Pi  
Keyword(3) TCP fairness control  
Keyword(4) transmission delay  
Keyword(5) testbed  
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1st Author's Name Rahardhita Widyatra Sudibyo  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Nobuo Funabiki  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Minoru Kuribayashi  
3rd Author's Affiliation Okayama University (Okayama Univ.)
4th Author's Name Kwenga Ismael Munene  
4th Author's Affiliation Okayama University (Okayama Univ.)
5th Author's Name Md. Manowarul Islam  
5th Author's Affiliation Okayama University (Okayama Univ.)
6th Author's Name Wen-Chung Kao  
6th Author's Affiliation National Taiwan Normal University (National Taiwan Normal Univ.)
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Speaker
Date Time 2018-12-21 14:20:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2018-175 
Volume (vol) IEICE-118 
Number (no) no.371 
Page pp.95-100 
#Pages IEICE-6 
Date of Issue IEICE-NS-2018-12-13 


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