DocumentCode
1173155
Title
A new upper bound on the minimum distance of turbo codes
Author
Perotti, Alberto ; Benedetto, Sergio
Author_Institution
Center for Multimedia Radio Commun., Politecnico di Torino, Italy
Volume
50
Issue
12
fYear
2004
Firstpage
2985
Lastpage
2997
Abstract
In this paper, a new upper bound on the minimum distance of turbo codes is derived. The new bound is obtained by construction of an undirected graph which reflects the characteristics of the constituent codes and the interleaver. The resulting expression shows that the minimum distance of a turbo code grows approximately with the base-3 logarithm of the information word length. The new bound is easy to compute, applies to rate k0/n0 constituent encoders, and often improves over existing results.
Keywords
interleaved codes; turbo codes; base-3 logarithm; constituent encoder; information word length; interleaver code; minimum distance turbo code; permutation; undirected graph; Concatenated codes; Convolutional codes; Electronic mail; Error correction codes; Graph theory; Interleaved codes; Multimedia communication; Radio communication; Turbo codes; Upper bound; 65; Minimum distance; performance bounds; permutations; turbo codes;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.2004.838358
Filename
1362892
Link To Document