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Paper Abstract and Keywords
Presentation 2014-12-18 12:30
[Poster Presentation] A Study on effect of FEC for OFDM transmission using one GI per multiple blocks
Yuta Kasajima, Hiroyuki Hatano, Masahiro Fujii, Atsushi Ito, Yu Watanabe (Utsunomiya Univ.) WBS2014-43
Abstract (in Japanese) (See Japanese page) 
(in English) In usual OFDM systems, it is easy to avoid Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI) owing to the Guard Interval (GI) at the beginning of each OFDM symbol.
However, the GI causes loss of the transmission energy and the frequency efficiencies because it is removed at the receiver.
In this paper, we propose a new GI design which is only one GI inserted at the beginning of concatenated OFDM symbols.
However, applying the usual OFDM receiver structure to this GI design, it results in serious ISI and ICI.
Thus, we apply the Frequency Domain Equalization (FDE) technique which is well-known for the single carrier modulation systems.
Although there are several methods for the FDE, we evaluate maximum ratio combining, zero forcing, and Minimum Mean Square Error (MMSE) filters.
It is possible to implement these filters by using the Fourier Transform method.
From our computer simulation results, we show that the proposed approximate MMSE outperforms the conventional method owing to the diversity effect.
Moreover, we apply the forward error collection method and evaluate the effect of the diversity and error collection.
The proposed GI design and the approximate MMSE can provide the best performances in terms of the transmission energy and frequency efficiencies.
Keyword (in Japanese) (See Japanese page) 
(in English) Orthogonal Frequency Division Multiplexing / Guard Interval / Frequency-Domain Equalization / Forward Error Correction / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 368, WBS2014-43, pp. 25-30, Dec. 2014.
Paper # WBS2014-43 
Date of Issue 2014-12-11 (WBS) 
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)
Download PDF WBS2014-43

Conference Information
Committee WBS ITS  
Conference Date 2014-12-18 - 2014-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ITS Communications, Poster, etc. 
Paper Information
Registration To WBS 
Conference Code 2014-12-WBS-ITS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on effect of FEC for OFDM transmission using one GI per multiple blocks 
Sub Title (in English)  
Keyword(1) Orthogonal Frequency Division Multiplexing  
Keyword(2) Guard Interval  
Keyword(3) Frequency-Domain Equalization  
Keyword(4) Forward Error Correction  
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1st Author's Name Yuta Kasajima  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Hiroyuki Hatano  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Masahiro Fujii  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
4th Author's Name Atsushi Ito  
4th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
5th Author's Name Yu Watanabe  
5th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker
Date Time 2014-12-18 12:30:00 
Presentation Time 150 
Registration for WBS 
Paper # IEICE-WBS2014-43 
Volume (vol) IEICE-114 
Number (no) no.368 
Page pp.25-30 
#Pages IEICE-6 
Date of Issue IEICE-WBS-2014-12-11 


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