The free distance of fixed convolutional rate 2/4 codes meets the Costello bound

V.V Chepyshov; Ben Smeets; Kamil Zigangirov

doi:10.1109/18.144717

The free distance of fixed convolutional rate 2/4 codes meets the Costello bound

V.V Chepyshov, Ben Smeets, Kamil Zigangirov

Department of Electrical and Information Technology

Institute for Information Transmission Problems Russian Academy of Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

The long standing question whether the free distance of fixed rate convolutional codes is as good as the Costello bound was almost solved by K.S. Zigangirov and J.L. Massey (1987). They proved that this is indeed the case for codes with long branch length and rates 2/c, c>or=5. It is shown that there exist fixed convolutional codes of rate 2/4 whose free distance d/sub free/ meets the Costello bound originally derived for time varying convolutional codes

Original language	English
Pages (from-to)	1360-1366
Journal	IEEE Transactions on Information Theory
Volume	38
Issue number	4
DOIs	https://doi.org/10.1109/18.144717
Publication status	Published - 1992 Jul

Subject classification (UKÄ)

Communication Systems
Mathematical Analysis

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10.1109/18.144717

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title = "The free distance of fixed convolutional rate 2/4 codes meets the Costello bound",

abstract = "The long standing question whether the free distance of fixed rate convolutional codes is as good as the Costello bound was almost solved by K.S. Zigangirov and J.L. Massey (1987). They proved that this is indeed the case for codes with long branch length and rates 2/c, c>or=5. It is shown that there exist fixed convolutional codes of rate 2/4 whose free distance d/sub free/ meets the Costello bound originally derived for time varying convolutional codes",

author = "V.V Chepyshov and Ben Smeets and Kamil Zigangirov",

year = "1992",

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AB - The long standing question whether the free distance of fixed rate convolutional codes is as good as the Costello bound was almost solved by K.S. Zigangirov and J.L. Massey (1987). They proved that this is indeed the case for codes with long branch length and rates 2/c, c>or=5. It is shown that there exist fixed convolutional codes of rate 2/4 whose free distance d/sub free/ meets the Costello bound originally derived for time varying convolutional codes

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DO - 10.1109/18.144717

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JO - IEEE Transactions on Information Theory

JF - IEEE Transactions on Information Theory

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The free distance of fixed convolutional rate 2/4 codes meets the Costello bound

Abstract

Subject classification (UKÄ)

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