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| Presentation | 2019-06-19 16:05 Spreading Factor Selection Method for Multiple Gateways Reception in LoRaWAN Chen Muying, Koichi Adachi (UEC)  RCS2019-58 |
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| 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 | 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 | RCS2019-58 |
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| 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 | Author-1 |
| Date Time | 2019-06-19 16:05:00 |
| Presentation Time | 10 minutes |
| Registration for | RCS |
| Paper # | RCS2019-58 |
| Volume (vol) | vol.119 |
| Number (no) | no.90 |
| Page | pp.125-130 |
| #Pages | 6 |
| Date of Issue | 2019-06-12 (RCS) |
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