IMAGE TRANSMISSION OVER RAYLEIGH FADING CHANNELS USING TURBO CODES WITH MULTI-DIMENSIONAL CHAOTIC INTERLEAVERS

الملخص

It is well known that the Turbo code's performance is considerably affected by its Interleaver design, which often has random permutation properties. In this paper, we propose deterministic three types of 1-DChaotic Interleavers based on chaotic dynamics that have a random-like behavior to give the Interleaver the required degree of dispersion and correlation factors. Furthermore, 2-D and 3-D Chaotic Interleavers are designed to have good separation parameters that have a major impact on the turbo codes' performance, especially over fading channels. Then, the designed chaotic Interleavers are compared with random ones in terms of performance for random data and measuring the quality of the received image in terms of their PSNRs. The results show that the Multi-dimensional Chaotic Interleavers outperform the random one, in terms of both: BERand the quality of the received image.