Paper Abstract and Keywords |
Presentation |
2022-11-24 13:00
Successive Interference Cancellation Among Multiple LPWA Systems Based on Cooperation Between Multiple GWs Shinichiro Kakuda, Takeo Fujii (UEC), Shusuke Narieda (Mie Univ.) SRW2022-16 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Nowadays, the number of low power wide area (LPWA) nodes that can communicate over long distances with low power has been increasing rapidly. Additionally, to utilize LPWA in various use cases, various LPWA systems with different communication protocols have been developed. Because these systems utilize the same unlicensed Sub-GHz bands, intra-system and inter-system interferences may frequently cause at gateways (GWs). Thus, we have proposed successive interference cancellation (SIC) among multiple LPWA systems at GWs with a modulator and demodulator for each system. In SIC, GW temporarily accumulates received and superposed signals and then (i) demodulates in each system, (ii) generates replica signals, and (iii) subtracts the replica signals from the accumulated signals, iteratively. Step (i) can be performed when the received power difference among the signals is enough. However, when the received power difference is less, GW cannot perform the demodulation and subtraction. Therefore, we propose SIC based on cooperation between multiple GWs. In this method, the GW succeeding to demodulate shares the demodulated binary data with the GW failing to demodulate, which assists the replica generation at the latter GW. Simulation results show that packet error rate can be suppressed drastically for the whole system compared to SIC at one GW without the cooperation between the GWs. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Successive Interference Cancellation / LPWA / LoRaWAN / Wi-SUN / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 277, SRW2022-16, pp. 1-6, Nov. 2022. |
Paper # |
SRW2022-16 |
Date of Issue |
2022-11-17 (SRW) |
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) |
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SRW2022-16 |
Conference Information |
Committee |
SRW SeMI CNR |
Conference Date |
2022-11-24 - 2022-11-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Epinard Nasu |
Topics (in Japanese) |
(See Japanese page) |
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IoT Workshop |
Paper Information |
Registration To |
SRW |
Conference Code |
2022-11-SRW-SeMI-CNR |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Successive Interference Cancellation Among Multiple LPWA Systems Based on Cooperation Between Multiple GWs |
Sub Title (in English) |
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Successive Interference Cancellation |
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LPWA |
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LoRaWAN |
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Wi-SUN |
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1st Author's Name |
Shinichiro Kakuda |
1st Author's Affiliation |
University of Electro-Communications (UEC) |
2nd Author's Name |
Takeo Fujii |
2nd Author's Affiliation |
University of Electro-Communications (UEC) |
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Shusuke Narieda |
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Mie University (Mie Univ.) |
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Speaker |
Author-1 |
Date Time |
2022-11-24 13:00:00 |
Presentation Time |
20 minutes |
Registration for |
SRW |
Paper # |
SRW2022-16 |
Volume (vol) |
vol.122 |
Number (no) |
no.277 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2022-11-17 (SRW) |
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