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Paper Abstract and Keywords
Presentation 2016-05-20 09:20
Underwater Acoustic OFDM Communication Using Data Selective Rake Reception in Multipath Environment beyond Guard Interval
Shingo Yoshizawa, Hiroshi Tanimoto (Kitami Inst. of Tech.), Takashi Saito (Mitsubishi TOKKI) RCS2016-36
Abstract (in Japanese) (See Japanese page) 
(in English) Recent underwater acoustic communication has adopted OFDM for countermeasure of multipath. If a delay spread of multipath is within a guard interval (GI), frequency domain equalization (FDE) is effective in compensating channel distortion. However, very long delay waves should be considered when reflected waves arrive from water surfaces, water bottoms, and obstacles in shallow sea environment. A long GI is disadvantageous in terms of transmission rate and communication response.This report describes underwater acoustic OFDM communication that can cope with multipath environment beyond guard interval. Inter-block interference (IBI) is always present in the aforementioned environment. Inter-carrier interference (ICI) occurring at the same time as IBI becomes a major disturbance for OFDM demodulation.Data selective rake reception (DSRake) that cuts out a received signal by time-domain shifting FFT windows is effective in reducing ICI. This effectiveness is discussed in view of distribution of received signals and simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Underwater Acoustic Communication / OFDM / IBI / ICI / Rake Reception / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 46, RCS2016-36, pp. 67-72, May 2016.
Paper # RCS2016-36 
Date of Issue 2016-05-12 (RCS) 
ISSN Print edition: ISSN 0913-5685  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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2016-36

Conference Information
Committee IN RCS  
Conference Date 2016-05-19 - 2016-05-20 
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 2016-05-IN-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Underwater Acoustic OFDM Communication Using Data Selective Rake Reception in Multipath Environment beyond Guard Interval 
Sub Title (in English)  
Keyword(1) Underwater Acoustic Communication  
Keyword(2) OFDM  
Keyword(3) IBI  
Keyword(4) ICI  
Keyword(5) Rake Reception  
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1st Author's Name Shingo Yoshizawa  
1st Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
2nd Author's Name Hiroshi Tanimoto  
2nd Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech.)
3rd Author's Name Takashi Saito  
3rd Author's Affiliation Mitsubishi Electric TOKKI Systems Corporation (Mitsubishi TOKKI)
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Speaker
Date Time 2016-05-20 09:20:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2016-36 
Volume (vol) IEICE-116 
Number (no) no.46 
Page pp.67-72 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2016-05-12 


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