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Paper Abstract and Keywords
Presentation 2020-06-29 13:00
A Study on Decision of Guard Station using Virtual Dedicated Channel Scheme for Private WLAN Systems
Takeshi Yamada, Shinichi Miyamoto (Wakayama Univ.) SRW2020-7
Abstract (in Japanese) (See Japanese page) 
(in English) To establish a virtual dedicated channel for area owner's wireless local area network (WLAN) systems, a virtual dedicated channel scheme using periodic medium reservation has been proposed.
In the scheme, guard stations spatially distributed in the private space send network allocation vector (NAV) frames periodically.
Since the periodic NAV frames notify the medium reservation period to the visitor's BSS (Basic Service Set), the visitor's BSSs that overhear NAV frames defer the access to the medium, and the area owner's BSS can occupy a certain amount of radio resources.
In the conventional scheme, the guard stations notify the medium reservation so as to create the virtual dedicated channel as wide as possible.
However, when the required area for ensure the performance of area owner's BSS is narrower than the private space, the excessive medium reservation will degrade the spatial spectrum efficiency.
As a countermeasure against this problem, this paper proposes a dynamic medium reservation area control scheme.
In the proposed scheme, according to the position of visitor's BSS,the guard stations sending the NAV frames are dynamically controlled.
Since the limited numbers of guard stations operate to notify NAV frames,the spectrum efficiency will be improved by the proposed scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless LAN / unlicensed spectrum / CSMA/CA / virtual dedicated channel / dynamic control of NAV notification / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 81, SRW2020-7, pp. 17-22, June 2020.
Paper # SRW2020-7 
Date of Issue 2020-06-22 (SRW) 
ISSN 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)
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Conference Information
Committee SRW  
Conference Date 2020-06-29 - 2020-06-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) WLAN, WPAN, Ad-hoc, mmWave, etc. 
Paper Information
Registration To SRW 
Conference Code 2020-06-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Decision of Guard Station using Virtual Dedicated Channel Scheme for Private WLAN Systems 
Sub Title (in English)  
Keyword(1) wireless LAN  
Keyword(2) unlicensed spectrum  
Keyword(3) CSMA/CA  
Keyword(4) virtual dedicated channel  
Keyword(5) dynamic control of NAV notification  
1st Author's Name Takeshi Yamada  
1st Author's Affiliation Wakayama University (Wakayama Univ.)
2nd Author's Name Shinichi Miyamoto  
2nd Author's Affiliation Wakayama University (Wakayama Univ.)
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Speaker Author-1 
Date Time 2020-06-29 13:00:00 
Presentation Time 25 minutes 
Registration for SRW 
Paper # SRW2020-7 
Volume (vol) vol.120 
Number (no) no.81 
Page pp.17-22 
Date of Issue 2020-06-22 (SRW) 

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