MATLAB Simulation of Turbo Codes

This repository contains a MATLAB simulation program for Turbo codes featuring extensive code comments and implementation details. Turbo codes are sophisticated channel coding techniques widely employed in wireless communication systems to enhance reliability and transmission efficiency. The simulation includes key components such as: - Parallel concatenated convolutional encoder implementation - Interleaver design using random permutation algorithms - Iterative decoding process with MAP (Maximum A Posteriori) decoders - BER (Bit Error Rate) performance evaluation through Monte Carlo simulations The program provides detailed annotations explaining the algorithmic flow, parameter configurations, and performance metrics calculation. Users can modify critical parameters including code rate, frame size, iteration count, and SNR values to observe performance variations. Through executing this simulation, researchers can analyze Turbo code characteristics under different channel conditions and optimize system parameters. This implementation serves as an excellent educational resource for understanding Turbo code fundamentals and their practical applications in communication systems. The code structure features modular design with separate functions for encoding, decoding, and performance analysis, making it suitable for both academic study and research prototyping. The simulation results demonstrate the remarkable error-correction capability of Turbo codes, particularly showcasing the iterative decoding gain that approaches the Shannon limit.