A new interleaver design to improve the performance of the turbo codes is presented. Two criteria are considered in the design of the interleaver; the distance spectrum properties of the code and the correlation between the input information data and the soft output of each decoder corresponding to its parity bits. A deterministic interleaver design based on these criteria is also proposed.
['Hamid R. Sadjadpour', 'N. J. A. Sloane', 'Gabriele Nebe', 'M. Salehi']
Interleaver design for turbo codes