Presentation 2011-03-03
Code/Error-Trellis Construction for Convolutional Codes Using Shifted Code/Error-Subsequences
Masato TAJIMA, Koji OKINO, Takashi MIYAGOSHI,
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Abstract(in English) In this paper, we present a code/error-trellis construction for convolutional codes using shifted code/error-subsequences. It is shown that if the identical shifts occur both in the subsequences of a code-path and in those of the corresponding error-path, then the code and error-trellises are reduced simultaneously, if reduction is possible. First, we obtain pairs of transformations which generate the identical shifts both in the subsequences of the code-path and in those of the error-path. Next, by applying these transformations to the generator matrix and the parity-check matrix, we show that the two associated trellises are reduced simultaneously.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Convolutional codes / shifted code/error-subsequence / reduced code/error-trellis
Paper # IT2010-73,ISEC2010-77,WBS2010-52
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Committee ISEC
Conference Date 2011/2/24(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Code/Error-Trellis Construction for Convolutional Codes Using Shifted Code/Error-Subsequences
Sub Title (in English)
Keyword(1) Convolutional codes
Keyword(2) shifted code/error-subsequence
Keyword(3) reduced code/error-trellis
1st Author's Name Masato TAJIMA
1st Author's Affiliation Graduate School of Science and Engineering, University of Toyama()
2nd Author's Name Koji OKINO
2nd Author's Affiliation Information Technology Center, University of Toyama
3rd Author's Name Takashi MIYAGOSHI
3rd Author's Affiliation Graduate School of Science and Engineering, University of Toyama
Date 2011-03-03
Paper # IT2010-73,ISEC2010-77,WBS2010-52
Volume (vol) vol.110
Number (no) 443
Page pp.pp.-
#Pages 8
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