1. On quasi-cyclic interleavers for parallel turbo codes
- Author
-
Boutros, Joseph J. and Zemor, Gilles
- Subjects
Codes -- Usage ,Codes -- Analysis ,Iterative methods (Mathematics) -- Usage - Abstract
In this correspondence, we present an interleaving scheme that yields quasi-cyclic turbo codes. We prove that randomly chosen members of this family yield with probability almost 1 turbo codes with asymptotically optimum minimum distance, i.e., growing as a logarithm of the interleaver size. These interleavers are also very practical in terms of memory requirements and their decoding error probabilities for small block lengths compare favorably with previous interleaving schemes. Index Terms--Convolutional codes, iterative decoding, minimum distance, quasi-cyclic codes, turbo codes.
- Published
- 2006