DocumentCode
885605
Title
The free distance of fixed convolutional rate 2/4 codes meets the Costello bound
Author
Chepyzhov, Vladimir V. ; Smeets, Ben J M ; Zigangirov, Kamil Sh
Author_Institution
Inst. for Problems of Inf. Transmission, USSR Acad. of Sci., Moscow, Russia
Volume
38
Issue
4
fYear
1992
fDate
7/1/1992 12:00:00 AM
Firstpage
1360
Lastpage
1366
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 ⩾5. It is shown that there exist fixed convolutional codes of rate 2/4 whose free distance d free meets the Costello bound originally derived for time varying convolutional codes
Keywords
error correction codes; Costello bound; error correction capability; fixed rate convolutional codes; free distance; rate 2/4 codes; Convolutional codes; Error correction codes; Notice of Violation; Parity check codes; Semiconductor memory; Vectors;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/18.144717
Filename
144717
Link To Document