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Paper Abstract and Keywords
Presentation 2019-06-19 16:05
Spreading Factor Selection Method for Multiple Gateways Reception in LoRaWAN
Chen Muying, Koichi Adachi (UEC) RCS2019-58
Abstract (in Japanese) (See Japanese page) 
(in English) For the IoT (Internet of Things), it is required to have low cost device and simple network construc- tion. As a solution to these problems, a new wireless network called LoRaWAN (Long Range Wide Area Network), which enables long distance, low power communication, is attracting attention. LoRaWAN enables power-saving communication by using Chirp Spread Spectrum (CSS) as the physical layer and pure ALOHA as the MAC layer protocol. However, when the number of terminals in the network increases, packet collisions frequently happen, leading to a decrease in overall network throughput. To solve this problem, it has been proposed to replace the pure ALOHA protocol by replacing Carrier Sense Multiple Access (CSMA/CA: Carrier Sense Multiple Access / Collision Avoidance). Furthermore, the packet delivery rate (PDR) performance can be improved by receiving signals by multiple gateways (GWs). In this paper, we evaluate the impact of the spreading factor (SF) on the improvement of LoRaWAN with multiple GWs. When high SF is used, it has high receiver sensitivity and hence can be received by multiple GWs. However, since the transmission time of information becomes long, it is exposed to more interference from other terminals. Therefore, it indicates that the PDR performance cannot be improved.
Keyword (in Japanese) (See Japanese page) 
(in English) LPWA / LoRaWAN / Spreading factor selectino / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 90, RCS2019-58, pp. 125-130, June 2019.
Paper # RCS2019-58 
Date of Issue 2019-06-12 (RCS) 
ISSN Print edition: ISSN 0913-5685  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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2019-58

Conference Information
Committee RCS  
Conference Date 2019-06-19 - 2019-06-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyakojima Hirara Port Terminal Building 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2019-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spreading Factor Selection Method for Multiple Gateways Reception in LoRaWAN 
Sub Title (in English)  
Keyword(1) LPWA  
Keyword(2) LoRaWAN  
Keyword(3) Spreading factor selectino  
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1st Author's Name Chen Muying  
1st Author's Affiliation The University of Electro Communication (UEC)
2nd Author's Name Koichi Adachi  
2nd Author's Affiliation The University of Electro Communication (UEC)
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Speaker
Date Time 2019-06-19 16:05:00 
Presentation Time 10 
Registration for RCS 
Paper # IEICE-RCS2019-58 
Volume (vol) IEICE-119 
Number (no) no.90 
Page pp.125-130 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2019-06-12 


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