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Paper Abstract and Keywords
Presentation 2025-11-21 13:05
[Poster Presentation] A Spectrum Efficiency Improvement Method by Adaptive Bandwidth and Transmit Power Control in Multi-Band Spectrum Sharing Systems
Genta Tenno, Shigeru Tomisato, Kazuhiro Uehara (Okayama Univ.) SRW2025-44
Abstract (in Japanese) (See Japanese page) 
(in English) This paper evaluates spectrum efficiency improvement by an adaptive bandwidth control method in the bandwidth and transmit power control of an interfering system according to the used bands and the Signal-to-Noise Ratios (SNRs) of an interfered system and inter-system power ratios in multi-band spectrum sharing systems. The channel capacity of the interfering system is calculated with the band usage ratios and SNRs of the interfering system evaluated by computer simulation. The results show that adaptive bandwidth control which adaptively selects its control bands according to the interfered system bands can improve the channel capacity of the interfering system and it results in spectrum efficiency increase.
Keyword (in Japanese) (See Japanese page) 
(in English) Spectrum Sharing System / Multi-Band System / Bandwidth Control / Transmit Power Control / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 256, SRW2025-44, pp. 65-70, Nov. 2025.
Paper # SRW2025-44 
Date of Issue 2025-11-13 (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 SRW2025-44

Conference Information
Committee SRW  
Conference Date 2025-11-20 - 2025-11-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Rakuyu-Kaikan Bldg. 2F Lecture room 
Topics (in Japanese) (See Japanese page) 
Topics (in English) IoT Workshop (General and Poster presentations regarding IoT techniques) 
Paper Information
Registration To SRW 
Conference Code 2025-11-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Spectrum Efficiency Improvement Method by Adaptive Bandwidth and Transmit Power Control in Multi-Band Spectrum Sharing Systems 
Sub Title (in English)  
Keyword(1) Spectrum Sharing System  
Keyword(2) Multi-Band System  
Keyword(3) Bandwidth Control  
Keyword(4) Transmit Power Control  
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1st Author's Name Genta Tenno  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Shigeru Tomisato  
2nd Author's Affiliation Okayama University (Okayama Univ.)
3rd Author's Name Kazuhiro Uehara  
3rd Author's Affiliation Okayama University (Okayama Univ.)
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Speaker Author-1 
Date Time 2025-11-21 13:05:00 
Presentation Time 80 minutes 
Registration for SRW 
Paper # SRW2025-44 
Volume (vol) vol.125 
Number (no) no.256 
Page pp.65-70 
#Pages 6 
Date of Issue 2025-11-13 (SRW) 

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