Title :
Group structure of turbo-codes
Author :
Khandani, Amir K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont.
fDate :
1/22/1998 12:00:00 AM
Abstract :
The author discusses the group property of turbo-codes when considered as a periodic linear system. It is shown that the interleaving procedure provides a homomorphism between different encoded sequences and thereby breaks the low weight sequences by a factor of, at most, 1/2r, where r is the constraint length of the code
Keywords :
concatenated codes; convolutional codes; error correction codes; encoded sequences; group structure; interleaving procedure; periodic linear system; turbo-codes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980020