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Paper Abstract and Keywords
Presentation 2023-12-15 14:25
Terminal Scheduling Method for Spectrum Sharing between Non-Terrestrial Networks and Terrestrial Networks using Radio Map
Shugo Hirano, Hirofumi Nakajo, Takeo Fujii (UEC) RCS2023-201
Abstract (in Japanese) (See Japanese page) 
(in English) With the proliferation of the Internet-of-Things (IoT) and cell phones, there is a need to provide high-speed communications to a large number of users. Next-generation mobile communication systems, Beyond 5G/6G, are considering the use of non-terrestrial networks (NTNs) to ensure a wide coverage area and to accommodate the increase in users. Satellite communications, which is one of NTNs, have a wider coverage area than base stations of terrestrial networks (TNs), but utilization of NTNs concerns the impact on terrestrial networks when considering spectrum between NTNs and TNs. For spectrum sharing with the TNs, frequency bands are allocated for each communication link, and an investigation is conducted on the timing schedule method for TNs and NTNs terminals. We consider the impact on each terminal and base station when using reverse pairing, which reverses the up-link and down-link frequency resource links between NTNs and TNs. To avoid interference between terminals, which was found to be necessary when performing reverse pairing, scheduling of terminals is conducted, and a radio map is utilized for this schedule. To confirm the effectiveness of the proposed method, we evaluated the number of possible transmission terminals affected by the error of information in the radio map by computer simulation. The results show that efficient spectrum sharing between terrestrial and non-terrestrial networks is possible even when estimation errors occur in the case of using radio map.
Keyword (in Japanese) (See Japanese page) 
(in English) spectrum sharing / satellite / non-terrestrial network / spectrum database / radio map / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 308, RCS2023-201, pp. 123-128, Dec. 2023.
Paper # RCS2023-201 
Date of Issue 2023-12-07 (RCS) 
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 RCS2023-201

Conference Information
Committee NS RCS  
Conference Date 2023-12-14 - 2023-12-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Institute of Technology Tobata campus, and Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. 
Paper Information
Registration To RCS 
Conference Code 2023-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Terminal Scheduling Method for Spectrum Sharing between Non-Terrestrial Networks and Terrestrial Networks using Radio Map 
Sub Title (in English)  
Keyword(1) spectrum sharing  
Keyword(2) satellite  
Keyword(3) non-terrestrial network  
Keyword(4) spectrum database  
Keyword(5) radio map  
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1st Author's Name Shugo Hirano  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Hirofumi Nakajo  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Takeo Fujii  
3rd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2023-12-15 14:25:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2023-201 
Volume (vol) vol.123 
Number (no) no.308 
Page pp.123-128 
#Pages 6 
Date of Issue 2023-12-07 (RCS) 

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