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Paper Abstract and Keywords
Presentation 2017-05-12 09:45
A Study on Preamble Associated Phase Ambiguity Compensation of ICA based-SDMA in BLE Systems
Masahiro Takigawa, Shinsuke Ibi, Seiichi Sampei (Osaka Univ.) RCS2017-43
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a utilization of preamble associated phase ambiguity compensation of spatial division multiple access (SDMA) based on independent component analysis (ICA) in Bluetooth low energy (BLE) systems. According to BLE specification, preambles of BLE terminals are not orthogonalized each other. ICA is a useful tool to separate spatially multiplexed signals without pilot signals. However, ICA requests sufficient input samples to improve the ability of signal separation. Furthermore, phase ambiguity problems remain in the ICA outputs. On top of that, noise enhancements induced by ICA deteriorates signal detection capability. To solve composite issues, we apply oversampling technique, phase ambiguity compensation with the aid of preamble in BLE packet, as well as successive interference cancellation (SIC) based on Cholesky decomposition. Simulation results demonstrate that the validity of the proposal in terms of the packet error rate (PER).
Keyword (in Japanese) (See Japanese page) 
(in English) Phase compensation / Oversampling / Independent component analysis / Successive interference cancellation / Bluetooth low energy / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 22, RCS2017-43, pp. 73-78, May 2017.
Paper # RCS2017-43 
Date of Issue 2017-05-04 (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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCS IN NV  
Conference Date 2017-05-11 - 2017-05-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2017-05-RCS-IN-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Preamble Associated Phase Ambiguity Compensation of ICA based-SDMA in BLE Systems 
Sub Title (in English)  
Keyword(1) Phase compensation  
Keyword(2) Oversampling  
Keyword(3) Independent component analysis  
Keyword(4) Successive interference cancellation  
Keyword(5) Bluetooth low energy  
1st Author's Name Masahiro Takigawa  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Shinsuke Ibi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Seiichi Sampei  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2017-05-12 09:45:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2017-43 
Volume (vol) IEICE-117 
Number (no) no.22 
Page pp.73-78 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-05-04 

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