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| Presentation | 2023-10-19 10:55 Fractional Spreading Factor for LoRa Signals and Its Demodulation Algorithm Ryoya Saito, Koichi Adachi, Takeo Fujii, Ryota Kumada (UEC)  RCS2023-129 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, long-range wide area network (LoRaWAN), a low power wide area network (LPWAN) technology that facilitates long-range and low-power communication, has been attracting attention with the development of the Internet-of-things (IoT). This paper introduces a concept of non-integer spreading factor (FSF) to LoRa modulation for system throughput improvement. In the proposed FSF-LoRa, a fractional coefficient is introduced for changing the chip length of the LoRa signal, which realizes equivalent FSF. To mitigate the self-interference of the FSF-LoRa signal, this paper also proposes a demodulation algorithm that takes into account the structure of FSF-LoRa signal. The computer simulation results elucidate that the proposed FSF-LoRa can improve the system throughput by 14% compared to the original LoRa under an inter-spreading factor interference environment. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LPWAN / LoRaWAN / LoRa / IoT / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 224, RCS2023-129, pp. 7-12, Oct. 2023. | |
| Paper # | RCS2023-129 | |
| Date of Issue | 2023-10-12 (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 | RCS2023-129 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2023-10-19 - 2023-10-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kagawa University (Saiwai-cho Campus), and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2023-10-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fractional Spreading Factor for LoRa Signals and Its Demodulation Algorithm |
| Sub Title (in English) | |
| Keyword(1) | LPWAN |
| Keyword(2) | LoRaWAN |
| Keyword(3) | LoRa |
| Keyword(4) | IoT |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Ryoya Saito |
| 1st Author's Affiliation | The University of Electro-Communications (UEC) |
| 2nd Author's Name | Koichi Adachi |
| 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) |
| 4th Author's Name | Ryota Kumada |
| 4th Author's Affiliation | The University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2023-10-19 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2023-129 |
| Volume (vol) | vol.123 |
| Number (no) | no.224 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2023-10-12 (RCS) |
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