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Paper Abstract and Keywords
Presentation 2017-07-20 10:30
Investigating the LoRa Receiver Performance under Mutual Interference
Guibing Zhu, Chun-Hao Liao, Makoto Suzuki, Yoshiaki Narusue, Hiroyuki Morikawa (Univ. of Tokyo) RCS2017-110
Abstract (in Japanese) (See Japanese page) 
(in English) LoRa networks achieve a remarkable wide coverage by exploiting the chirp spread spectrum (CSS) technique. However, a single-hop LoRa network still has a limitation in indoor environments and cannot efficiently utilize the capacity gain given by different spreading factors (SF). As the first step to verify the feasibility of constructing an efficient multi-hop LoRa network using diverse SFs, we evaluate the LoRa receiver performance under the mutual interference. The results show that LoRa can survive the interference from the time-synchronized packets with an identical SF with a close to zero signal-to-interference ratio (SIR). Also, we verify that LoRa can survive different SF interference with a much lower SIR due to the orthogonality between SFs.
Keyword (in Japanese) (See Japanese page) 
(in English) LoRa / Spreading Factor / Receiver / Interference / Multi-hop / WSN / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 132, RCS2017-110, pp. 103-108, July 2017.
Paper # RCS2017-110 
Date of Issue 2017-07-12 (RCS) 
ISSN Print edition: ISSN 0913-5685  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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2017-110

Conference Information
Committee NS ASN RCC RCS SR  
Conference Date 2017-07-19 - 2017-07-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Distributed Network, M2M (Machine-to-Machine), D2D (Device-to-Device),etc. 
Paper Information
Registration To RCS 
Conference Code 2017-07-NS-ASN-RCC-RCS-SR 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigating the LoRa Receiver Performance under Mutual Interference 
Sub Title (in English)  
Keyword(1) LoRa  
Keyword(2) Spreading Factor  
Keyword(3) Receiver  
Keyword(4) Interference  
Keyword(5) Multi-hop  
Keyword(6) WSN  
1st Author's Name Guibing Zhu  
1st Author's Affiliation University of Tokyo (Univ. of Tokyo)
2nd Author's Name Chun-Hao Liao  
2nd Author's Affiliation University of Tokyo (Univ. of Tokyo)
3rd Author's Name Makoto Suzuki  
3rd Author's Affiliation University of Tokyo (Univ. of Tokyo)
4th Author's Name Yoshiaki Narusue  
4th Author's Affiliation University of Tokyo (Univ. of Tokyo)
5th Author's Name Hiroyuki Morikawa  
5th Author's Affiliation University of Tokyo (Univ. of Tokyo)
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Date Time 2017-07-20 10:30:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2017-110 
Volume (vol) IEICE-117 
Number (no) no.132 
Page pp.103-108 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-07-12 

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