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Paper Abstract and Keywords
Presentation 2020-02-19 14:15
Separate Detection of Collided Packets using Parallel Interference Cancellation over Space-based AIS Channels
Yuwa Takanezawa, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech.), Daichi Hirahara (JAXA) SAT2019-73
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, satellite-based automatic identification system (AIS) has attracted much attentions because it can receive AIS packets across the open ocean.
As such a satellite system, Japan Aerospace eXploration Agency (JAXA) has conducted an experiment named Space-based AIS Experiment (SPAISE) in Japan where satellites equipped with AIS receivers have been launched, and observed AIS signals suffering from the Doppler shift.
The results clarify that the wide coverage of the satellites causes a collision of multiple AIS signal packets, which degrades their transmission performance severely.
To cope with such collided packets, a separate detection scheme using successive interference cancellation (SIC) has been investigated and achieved good performance when received power difference among the collided packets is considerably large.
However, the bit error rate (BER) degrades more severely as desired to undesired signal power ratio (DUR) becomes smaller.
To solve this problem, we consider the separate detection as a multi-user detection (MUD) problem, and propose parallel interference cancellation (PIC) to be used for separating the collided packets, which results in excellent BER performance even when the DUR is relatively small.
Computer simulations under Rician fading conditions show that PIC outperforms SIC when channel parameters are perfectly estimated.
Keyword (in Japanese) (See Japanese page) 
(in English) Automatic Identification System (AIS) / Space-based AIS / packet collision / PIC / SIC / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 417, SAT2019-73, pp. 33-38, Feb. 2020.
Paper # SAT2019-73 
Date of Issue 2020-02-12 (SAT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee SAT SANE  
Conference Date 2020-02-19 - 2020-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SAT 
Conference Code 2020-02-SAT-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Separate Detection of Collided Packets using Parallel Interference Cancellation over Space-based AIS Channels 
Sub Title (in English)  
Keyword(1) Automatic Identification System (AIS)  
Keyword(2) Space-based AIS  
Keyword(3) packet collision  
Keyword(4) PIC  
Keyword(5) SIC  
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1st Author's Name Yuwa Takanezawa  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
2nd Author's Name Yuyuan Chang  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
3rd Author's Name Kazuhiko Fukawa  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
4th Author's Name Daichi Hirahara  
4th Author's Affiliation Japan Aerospace eXploration Agency (JAXA)
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Speaker
Date Time 2020-02-19 14:15:00 
Presentation Time 25 
Registration for SAT 
Paper # IEICE-SAT2019-73 
Volume (vol) IEICE-119 
Number (no) no.417 
Page pp.33-38 
#Pages IEICE-6 
Date of Issue IEICE-SAT-2020-02-12 


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