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Paper Abstract and Keywords
Presentation 2022-03-03 09:30
Highly Efficient Model to Calculate Radio Protection Area for Spectrum Sharing in VHF-Band
Keika Minaki, Shingo Tomida, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SR2021-99
Abstract (in Japanese) (See Japanese page) 
(in English) The VHF band is currently allocated for public broadband wireless communication (PBB) systems for safety and security in Japan. Since the VHF band has a long wavelength and can secure a wide communication area, there have been increasing demands for its utilization not only for public users but also for general users. Currently, there are discussions on utilizing the frequency band adjacent to the band allocated for PBB systems, because the band is currently not used by anyone and called V-High band. However, since the bandwidth of only 14.5 MHz is allocated for PBB systems in the V-High band of 207.5 –222 MHz, spectrum sharing technologies should be used to allocate a large number of systems in this limited band. To realize the spectrum sharing, it is important to calculate the radio protection area (RPA) of each system appropriately and avoid interference between different systems. However, in the existing RPA calculation models, there are problems of setting the RPA excessively or, conversely, problems of generating unprotected areas. We propose an RPA calculation model that introduces location gain to solve this problem and reduce the RPA. This report newly proposes a method using multiple regression analysis for determination of undetermined coefficients for location gain estimation on the basis of this model, and evaluates the performance of the proposed RPA estimation method by using the results of radio propagation experiments in urban environments, and shows that the proposed method achieves a more efficient estimation of the RPA than the conventional models.
Keyword (in Japanese) (See Japanese page) 
(in English) VHF band / Spectrum sharing / Interference protection area / ARIB STD-T103 / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 392, SR2021-99, pp. 64-70, March 2022.
Paper # SR2021-99 
Date of Issue 2022-02-23 (SR) 
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 SR2021-99

Conference Information
Committee RCS SR SRW  
Conference Date 2022-03-02 - 2022-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2022-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Highly Efficient Model to Calculate Radio Protection Area for Spectrum Sharing in VHF-Band 
Sub Title (in English)  
Keyword(1) VHF band  
Keyword(2) Spectrum sharing  
Keyword(3) Interference protection area  
Keyword(4) ARIB STD-T103  
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1st Author's Name Keika Minaki  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Shingo Tomida  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Keiichi Mizutani  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Hiroshi Harada  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2022-03-03 09:30:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2021-99 
Volume (vol) vol.121 
Number (no) no.392 
Page pp.64-70 
#Pages 7 
Date of Issue 2022-02-23 (SR) 

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