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Paper Abstract and Keywords
Presentation 2012-07-20 10:45
A construction of high rate punctured convolutional codes using dual codes
Kana Kikuchi, Yuuya Hirashita (Kinki Univ.), Tomoya Mishima, James Ohmae (NDR), Hiroshi Sasano (Kinki Univ.) IT2012-20
Abstract (in Japanese) (See Japanese page) 
(in English) A punctured convolutional code is constructed by puncturing the output symbols of a low rate convolutional code (original code) periodically. Though the best punctured code can be obtained by searching for all combinations of original codes and puncturing matrices, these searches require enormous computation efforts.
A convolutional code of rate $R=(n-1)/n$ can be generated as the dual code of a convolutional code of rate $R=1/n$. For a puctured convolutional code, there exists an ordinary convoluitonal code (equivarent code) with the same weight spectrum as that of the punctured code. We can obtain a rate $R=(n-1)/n$ punctured convolutional code from the equivarent code that is generated by the dual code of a rate $R=1/n$ convoluitonal code.
We present a method for constructing rate $R=(n-1)/n$ punctured convolutional codes by using dual codes of rate $R=1/n$ convolutional codes.
Keyword (in Japanese) (See Japanese page) 
(in English) convolutional code / punctured code / dual code / weight spectrum / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 124, IT2012-20, pp. 67-71, July 2012.
Paper # IT2012-20 
Date of Issue 2012-07-12 (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 IT2012-20

Conference Information
Committee IT  
Conference Date 2012-07-19 - 2012-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyota Technological Institute 
Topics (in Japanese) (See Japanese page) 
Topics (in English) freshman session, general 
Paper Information
Registration To IT 
Conference Code 2012-07-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A construction of high rate punctured convolutional codes using dual codes 
Sub Title (in English)  
Keyword(1) convolutional code  
Keyword(2) punctured code  
Keyword(3) dual code  
Keyword(4) weight spectrum  
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1st Author's Name Kana Kikuchi  
1st Author's Affiliation Kinki University (Kinki Univ.)
2nd Author's Name Yuuya Hirashita  
2nd Author's Affiliation Kinki University (Kinki Univ.)
3rd Author's Name Tomoya Mishima  
3rd Author's Affiliation NDR Corporation (NDR)
4th Author's Name James Ohmae  
4th Author's Affiliation NDR Corporation (NDR)
5th Author's Name Hiroshi Sasano  
5th Author's Affiliation Kinki University (Kinki Univ.)
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Speaker Author-1 
Date Time 2012-07-20 10:45:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2012-20 
Volume (vol) vol.112 
Number (no) no.124 
Page pp.67-71 
#Pages 5 
Date of Issue 2012-07-12 (IT) 

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