Title :
Group structure of turbo-codes with application to the interleaver design
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
Abstract :
It is shown that the interleaving in turbo-codes provides a homomorphism between the encoded streams and consequently cannot break all the low weight input sequences. A method is presented to optimize the structure of the interleaver. It is show that for large block lengths optimization of the interleaver does not affect the code performance
Keywords :
interleaved codes; optimisation; turbo codes; group structure; homomorphism; interleaver design; interleaving; large block lengths; low weight input sequences; optimization; turbo-codes; Convolutional codes; Error probability; Information technology; Interleaved codes; Multilevel systems; Optimization methods; Parity check codes; Turbo codes;
Conference_Titel :
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-5000-6
DOI :
10.1109/ISIT.1998.709026
