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Paper Abstract and Keywords
Presentation 2018-07-19 13:40
Estimation of The Number of Users by Backoff and Collision Information on WLAN
Norihiro Matsumoto, Ikuo Oka, Shingo Ata (Osaka City Univ.) IT2018-12
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, the number of users using wireless devices is increasing. This causes a transmission rate degradation. To deal with this problem, two kinds of methods considering a backoff algorithm in CSMA/CA and an access control of Access Point (AP) are proposed. These methods need a parameter of the number of users. In this paper, the estimation method is proposed for the number of users by backoff and collision information. This method uses a probability of delay time in backoff algorithm and collision probability by simulation. The estimation results of proposed method is confirmed with simulation results.
Keyword (in Japanese) (See Japanese page) 
(in English) Estimation of the number of users / Maximum likelihood estimation / CSMA/CA / DCF / IEEE802.11 / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 139, IT2018-12, pp. 1-4, July 2018.
Paper # IT2018-12 
Date of Issue 2018-07-12 (IT) 
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 IT2018-12

Conference Information
Committee IT  
Conference Date 2018-07-19 - 2018-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamato Kaigishitsu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) freshman session, general 
Paper Information
Registration To IT 
Conference Code 2018-07-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of The Number of Users by Backoff and Collision Information on WLAN 
Sub Title (in English)  
Keyword(1) Estimation of the number of users  
Keyword(2) Maximum likelihood estimation  
Keyword(3) CSMA/CA  
Keyword(4) DCF  
Keyword(5) IEEE802.11  
1st Author's Name Norihiro Matsumoto  
1st Author's Affiliation Osaka City University (Osaka City Univ.)
2nd Author's Name Ikuo Oka  
2nd Author's Affiliation Osaka City University (Osaka City Univ.)
3rd Author's Name Shingo Ata  
3rd Author's Affiliation Osaka City University (Osaka City Univ.)
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Date Time 2018-07-19 13:40:00 
Presentation Time 25 
Registration for IT 
Paper # IEICE-IT2018-12 
Volume (vol) IEICE-118 
Number (no) no.139 
Page pp.1-4 
#Pages IEICE-4 
Date of Issue IEICE-IT-2018-07-12 

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