DocumentCode :
1532459
Title :
EXIT chart aided design of periodically punctured turbo codes
Author :
Babich, F. ; Crismani, Alessandro ; Maunder, Robert G.
Author_Institution :
Dipt. di Elettrotec., Elettron. ed Inf., Univ. of Trieste, Trieste, Italy
Volume :
46
Issue :
14
fYear :
2010
fDate :
7/1/2010 12:00:00 AM
Firstpage :
1001
Lastpage :
1003
Abstract :
Extrinsic information transfer (EXIT) charts have proved to be an effective tool for studying the convergence behaviour of iterative decoders. However, classical EXIT chart analysis fails to assess the performance of turbo codes in which the systematic bits are punctured periodically. A novel three-dimensional (3D) EXIT chart technique is proposed for accurately modelling the convergence behaviour of turbo codes that are punctured following a periodic pattern. Finally, the novel 3D EXIT chart technique is validated for a particular periodic turbo code, which is shown to outperform the equivalent randomly punctured code.
Keywords :
iterative decoding; turbo codes; 3D EXIT chart technique; EXIT chart aided design; extrinsic information transfer; iterative decoders; periodically punctured turbo codes;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2010.1018
Filename :
5507614
Link To Document :
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