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Paper Abstract and Keywords
Presentation 2017-03-03 13:20
A Study for Improvement of Throughput in High Dense Wireless LAN Access Networks
Takahiro Kawasaki, Yumi Takaki, Tomio Kamada, Chikara Ohta (Kobe Univ.) NS2016-238
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, wireless access points (APs) based on IEEE 802.11 standard are widely deployed for off-loading as widespread use of smart-phone leads to more data traffic.
However, since IEEE 802.11 employs CSMA/CA as a basic medium access control, there could be dead spots where terminals suffer from much lower throughput than the others depending on the relative terminal positions owing to frame collisions by hidden terminals and loss of transmission opportunities by exposed terminals.
To cope with this problem, in this paper, we propose a novel scheme with combination of a carrier sense threshold control (CSTC) in which each terminal autonomously adjusts its CST and a transmission opportunity control in which each AP gives outer terminals more
transmission opportunities than vicinal terminals by using CTS-self.
Simulation experiments are conducted in order to compare the proposal scheme to a scheme employing only the CSTC and a scheme employing the transmission opportunity control using CTS-self.
Simulation results show that the proposal scheme provides more the lowest throughput than the others so that the effectiveness of the proposal scheme is confirmed.
Keyword (in Japanese) (See Japanese page) 
(in English) IEEE 802.11 / dead-spot / lowest throughput / carrier sense threshold control / CTS-self / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 484, NS2016-238, pp. 463-468, March 2017.
Paper # NS2016-238 
Date of Issue 2017-02-23 (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 NS2016-238

Conference Information
Committee NS IN  
Conference Date 2017-03-02 - 2017-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) OKINAWA ZANPAMISAKI ROYAL HOTEL 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2017-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study for Improvement of Throughput in High Dense Wireless LAN Access Networks 
Sub Title (in English)  
Keyword(1) IEEE 802.11  
Keyword(2) dead-spot  
Keyword(3) lowest throughput  
Keyword(4) carrier sense threshold control  
Keyword(5) CTS-self  
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Keyword(7)  
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1st Author's Name Takahiro Kawasaki  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Yumi Takaki  
2nd Author's Affiliation Kobe University (Kobe Univ.)
3rd Author's Name Tomio Kamada  
3rd Author's Affiliation Kobe University (Kobe Univ.)
4th Author's Name Chikara Ohta  
4th Author's Affiliation Kobe University (Kobe Univ.)
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Speaker Author-1 
Date Time 2017-03-03 13:20:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2016-238 
Volume (vol) vol.116 
Number (no) no.484 
Page pp.463-468 
#Pages 6 
Date of Issue 2017-02-23 (NS) 

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