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An Improved M-ary Modulation Scheme Based on Chaotic Dynamics

Abdullah Hikmat N., Sahar Asaad H., Saeed Thamir R.

Journal of Telecommunications and Information Technology

2019

nr 4

13--19

This paper proposes an improved chaos-based M-ary modulation system. It reproduces deterministic chaotic dynamics to create M-ary non-coherent modulation. The proposed modulation system transmits data using autonomous chaotic sequences. It separates the chaotic dynamics through the use of interleavers and realigns them through the use deinterleavers. The simulation results show that the improved scheme overperforms its traditional counterpart. The degree of improvement grows as the M-ary order is increased, with a penalty of increased system complexity.