MATLAB Turbo Code Simulation Program

This MATLAB-based Turbo code simulation program implements a comprehensive framework for modeling Turbo code operations. The system architecture includes modular components for parallel concatenated convolutional encoding with interleavers, and iterative decoding using MAP (Maximum A Posteriori) or SOVA (Soft Output Viterbi Algorithm) decoders. Key implementation features comprise parameterized configuration options for code rate adjustment, variable iteration cycles (typically 4-8 iterations), and customizable interleaver designs (e.g., random or block interleavers). The simulation enables performance analysis through BER (Bit Error Rate) versus Eb/N0 curves, incorporating log-likelihood ratio calculations and extrinsic information exchange between constituent decoders. The program's flexible structure allows experimentation with different component codes, termination schemes, and decoding algorithms, providing valuable insights for Turbo code optimization in communication systems.