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Paper Abstract and Keywords
Presentation 2009-09-30 10:00
An OFDM Transmission Technique with Pilot Sequencein Transmission Symbols
Hiroyuki Yamano, Shoichiro Yamasaki (Polytechnic Univ.) IT2009-37
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes an Orthogonal Frequency Division Multiplexing (OFDM) technique.
At the transmitter, $M$ samples of the $N$-point Inverse Discrete Fourier Transform (IDFT) input block are used as control samples, so that $M$ tail samples of the $N$-point IDFT output block have the same sequence in every IDFT output block. Then every transmitted block consists of $N$ samples and its $M$ tail samples show the constant sample pattern and act as the pilot sequence.
This process makes the multi-path channel operate as circular convolution without using cyclic prefix.
The number of the tail samples ($M$) in the block, which influences the resilience against the multi-path delay spread, can be changed maintaining the constant block synchronization timing interval in the transmitted sample sequence, because it is $N$-sample length and is independent of the $M$ value.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / Error correction codes / Multipath Delay / Pilot Sequence / Block Synchronization Timing / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 212, IT2009-37, pp. 25-30, Sept. 2009.
Paper # IT2009-37 
Date of Issue 2009-09-22 (IT) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IT2009-37

Conference Information
Committee IT  
Conference Date 2009-09-29 - 2009-09-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Sophia Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) LDPC codes, general 
Paper Information
Registration To IT 
Conference Code 2009-09-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An OFDM Transmission Technique with Pilot Sequencein Transmission Symbols 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) Error correction codes  
Keyword(3) Multipath Delay  
Keyword(4) Pilot Sequence  
Keyword(5) Block Synchronization Timing  
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Keyword(7)  
Keyword(8)  
1st Author's Name Hiroyuki Yamano  
1st Author's Affiliation Polytechnic University (Polytechnic Univ.)
2nd Author's Name Shoichiro Yamasaki  
2nd Author's Affiliation Polytechnic University (Polytechnic Univ.)
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Speaker Author-1 
Date Time 2009-09-30 10:00:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2009-37 
Volume (vol) vol.109 
Number (no) no.212 
Page pp.25-30 
#Pages 6 
Date of Issue 2009-09-22 (IT) 

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