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Paper Abstract and Keywords
Presentation 2026-03-05 10:30
[Invited Lecture] Recent Advances in Wireless LAN Technologies -- A Perspective on Spectrum Utilization --
Tomoko Adachi (Toshiba) RCS2025-276 SR2025-99 SRW2025-73
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless local area networks (WLANs) have achieved higher data rates through two major technological axes: wider transmission bandwidths and higher transmission efficiency. Since WLANs operate as license-exempt systems, an important challenge is how to secure and effectively utilize wide bandwidths while ensuring coexistence with other wireless systems. In addition, because WLANs use a CSMA/CA-based access scheme, interference avoidance techniques are effective in improving transmission efficiency. Furthermore, enhancing the utilization of time resources can lead to improved spectrum efficiency. This presentation overviews key technological trends from the perspective of spectrum utilization, focusing on IEEE 802.11ax, 802.11be, and the latest standardization activities of IEEE 802.11bn. It also introduces the IEEE 802.11bq standardization, which aims to expand the use of the 60 GHz band characterized by higher propagation directivity compared to the 2.4 GHz, 5 GHz, and 6 GHz bands. In addition, the presentation addresses Automated Frequency Coordination (AFC), for which regulation is being developed and implemented across countries to enable coexistence with other systems in the 6 GHz band.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless LAN / IEEE 802.11 / license-exempt / CSMA/CA / AFC / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 388, SR2025-99, pp. 54-54, March 2026.
Paper # SR2025-99 
Date of Issue 2026-02-25 (RCS, SR, SRW) 
ISSN 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 RCS2025-276 SR2025-99 SRW2025-73

Conference Information
Committee RCS SR SRW  
Conference Date 2026-03-04 - 2026-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo University of Science 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2026-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Recent Advances in Wireless LAN Technologies 
Sub Title (in English) A Perspective on Spectrum Utilization 
Keyword(1) Wireless LAN  
Keyword(2) IEEE 802.11  
Keyword(3) license-exempt  
Keyword(4) CSMA/CA  
Keyword(5) AFC  
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1st Author's Name Tomoko Adachi  
1st Author's Affiliation Toshiba Corporation (Toshiba)
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Speaker Author-1 
Date Time 2026-03-05 10:30:00 
Presentation Time 30 minutes 
Registration for SR 
Paper # RCS2025-276, SR2025-99, SRW2025-73 
Volume (vol) vol.125 
Number (no) no.387(RCS), no.388(SR), no.389(SRW) 
Page p.103(RCS), p.54(SR), p.39(SRW) 
#Pages 1 
Date of Issue 2026-02-25 (RCS, SR, SRW) 

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