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