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Paper Abstract and Keywords
Presentation 2016-03-03 10:15
FFT based High-efficient Receiver for FSK Packet Transmission Systems
Kentaro Mochizuki, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2015-91
Abstract (in Japanese) (See Japanese page) 
(in English) This report proposes a high-efficient receiver using the fast Fourier transform (FFT) which is available for conventional frequency shit keying (FSK) packet transmission systems.In the field of wireless machine-to machine (M2M) communication systems such as wireless smart utility network (Wi-SUN), FSK and Gaussian filtered FSK (GFSK) have been widely used because of its low-power consumption, which allows many sensors and meters to operate without battery maintenances for long period.On the other hand, in the base station it is expected that signal reception quality should be improved by digital signal processing with high complexity. In this report, a high-efficient symbol decision scheme and a symbol synchronization scheme using the power spectrum obtained by the FFT of the received signal in each symbol duration are proposed and their effectiveness and usability are shown by the computer simulations.With the proposed symbol decision scheme the soft decision value can be output that makes the bit error rate (BER) performance around 6.2 dB better than that of the conventional systems.Moreover, the symbol synchronization point can be detected even within eight times of symbol duration without deterioration of the packet error rate (PER) performance using the proposed symbol synchronization scheme.
Keyword (in Japanese) (See Japanese page) 
(in English) FSK / GFSK / FFT / Wi-SUN / soft decision / symbol synchronization / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 474, SRW2015-91, pp. 119-124, March 2016.
Paper # SRW2015-91 
Date of Issue 2016-02-24 (SRW) 
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 CCS SR SRW  
Conference Date 2016-03-02 - 2016-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SRW 
Conference Code 2016-03-RCS-CCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) FFT based High-efficient Receiver for FSK Packet Transmission Systems 
Sub Title (in English)  
Keyword(1) FSK  
Keyword(2) GFSK  
Keyword(3) FFT  
Keyword(4) Wi-SUN  
Keyword(5) soft decision  
Keyword(6) symbol synchronization  
1st Author's Name Kentaro Mochizuki  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Keiichi Mizutani  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Hiroshi Harada  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Date Time 2016-03-03 10:15:00 
Presentation Time 25 
Registration for SRW 
Paper # IEICE-SRW2015-91 
Volume (vol) IEICE-115 
Number (no) no.474 
Page pp.119-124 
#Pages IEICE-6 
Date of Issue IEICE-SRW-2016-02-24 

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