Turbo Product Code [TPC] Decoding Implementation Using Chase II Algorithm

In the MATLAB environment, we have successfully implemented a Turbo Product Code (TPC) decoding program utilizing the Chase II decoding algorithm. The program architecture is built upon the widely-applied turbo coding theory in communication systems, designed to enhance channel reliability through iterative soft-decision decoding. Key implementation aspects include: 1. Systematic encoding of product codes with two-dimensional parity check matrix construction 2. Chase II algorithm implementation with configurable search radius for candidate codeword generation 3. Soft-input soft-output (SISO) decoding modules with iterative reliability updates 4. Syndrome calculation and error pattern identification mechanisms Comprehensive testing has been conducted to validate the program's correctness and effectiveness, including BER performance analysis under various channel conditions. This implementation serves as a valuable tool for communication researchers to explore advanced turbo coding/decoding methodologies and their practical applications in modern communication systems. The code structure allows modular customization of parameters such as iteration numbers, test patterns, and decoding thresholds for flexible research experimentation.