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Paper Abstract and Keywords
Presentation 2022-11-08 10:20
Improvement of Collection Accuracy by Switching Carrier Frequency Offset in PhyC-SN
Toshi Ito, Osamu Takyu (Shinshu Univ.), Mai Ohta (Fukuoka Univ), Takeo Fujii, Koichi Adachi (UEC) SR2022-59
Abstract (in Japanese) (See Japanese page) 
(in English) A feature utilizing frequency offsets is used as a collision detection method in the wireless physical quantity conversion-summary collection (PhyC-SN) method, in which sensor information is converted into carrier waves and transmitted. The authors have improved the discriminability by suppressing inter-carrier interference using the long-interval FFT, but the accuracy is still degraded due to the similarity of frequency offsets between the transmitting terminals. Therefore, we propose a collision detection method with improved accuracy by transmitting at different frequency offsets and reducing the probability of frequency offset proximity between terminals.
Keyword (in Japanese) (See Japanese page) 
(in English) PhyC-SN / Frequency Offset / Window function / SVM / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 243, SR2022-59, pp. 78-83, Nov. 2022.
Paper # SR2022-59 
Date of Issue 2022-10-31 (SR) 
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 SR  
Conference Date 2022-11-07 - 2022-11-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Software Defined Radio, Cognitive Radio, Spectrum Sharing, etc. 
Paper Information
Registration To SR 
Conference Code 2022-11-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Collection Accuracy by Switching Carrier Frequency Offset in PhyC-SN 
Sub Title (in English)  
Keyword(1) PhyC-SN  
Keyword(2) Frequency Offset  
Keyword(3) Window function  
Keyword(4) SVM  
1st Author's Name Toshi Ito  
1st Author's Affiliation Shinshu University (Shinshu Univ.)
2nd Author's Name Osamu Takyu  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
3rd Author's Name Mai Ohta  
3rd Author's Affiliation Fukuoka University (Fukuoka Univ)
4th Author's Name Takeo Fujii  
4th Author's Affiliation The University of Electro-Communications (UEC)
5th Author's Name Koichi Adachi  
5th Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2022-11-08 10:20:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2022-59 
Volume (vol) vol.122 
Number (no) no.243 
Page pp.78-83 
Date of Issue 2022-10-31 (SR) 

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