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Paper Abstract and Keywords
Presentation 2022-05-12 10:15
A Study on Optimal Automatic Parameter Tuning Method for LPWA Communication Considering Airtime
Goshi Sato, Takizawa Kenichi (NICT), Nobayashi Daiki, Tsukamoto Kazuya, Ikenaga Takeshi (Kyutech) NS2022-11
Abstract (in Japanese) (See Japanese page) 
(in English) Low-power wide-area (LPWA) communications using the 920 MHz band are widely used as a tool that can be easily installed and used for long-distance communications. Mobile LPWA communications are subject to the effects of fading, which fluctuates with movement, because many LPWA communications have 10 milliseconds or longer radio frame lengths. We hypothesized that there is a relationship between airtime and communication success rate, which may affect throughput in LPWA communications. This paper discusses the relationship between fading and airtime in a mobile environment for 920 MHz band LPWA through experiments using a radio propagation simulator and LoRa devices. Based on the experimental results, the conditions under which throughput can be maximized in LPWA communications by optimizing airtime for the speed of movement are discussed. This paper discusses the possibility of a method for automatically adjusting the optimal communication parameters for the application of LPWA communication in a mobile environment according to the moving speed of the terminal station and the application requirements.
Keyword (in Japanese) (See Japanese page) 
(in English) Low-power wide-area (LPWA) / LoRa / Mobility / Parameter Control on Communications / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 16, NS2022-11, pp. 17-21, May 2022.
Paper # NS2022-11 
Date of Issue 2022-05-05 (NS) 
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)
Download PDF NS2022-11

Conference Information
Committee NS  
Conference Date 2022-05-12 - 2022-05-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Rakuyu Kaikan, Kyoto Univ. + Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc. 
Paper Information
Registration To NS 
Conference Code 2022-05-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Optimal Automatic Parameter Tuning Method for LPWA Communication Considering Airtime 
Sub Title (in English)  
Keyword(1) Low-power wide-area (LPWA)  
Keyword(2) LoRa  
Keyword(3) Mobility  
Keyword(4) Parameter Control on Communications  
1st Author's Name Goshi Sato  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Takizawa Kenichi  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Nobayashi Daiki  
3rd Author's Affiliation Kyushu Institute of Technology (Kyutech)
4th Author's Name Tsukamoto Kazuya  
4th Author's Affiliation Kyushu Institute of Technology (Kyutech)
5th Author's Name Ikenaga Takeshi  
5th Author's Affiliation Kyushu Institute of Technology (Kyutech)
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Speaker Author-1 
Date Time 2022-05-12 10:15:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2022-11 
Volume (vol) vol.122 
Number (no) no.16 
Page pp.17-21 
Date of Issue 2022-05-05 (NS) 

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