Iterative decoding of LDPC/turbo, polar codes — walking through in C++ and comparing with MATLAB

▤ Summary

This article explains how to implement and compare LDPC, turbo, and polar code decoders in modern C++. It walks through belief propagation for LDPC, BCJR for turbo codes, and successive cancellation for polar codes, then compares the results with MATLAB implementations. The piece also shows how the code is structured as a header-only C++17 library and how to run BER experiments and plotting scripts. It positions the project as a practical reference for engineers who want to validate FEC algorithms against MATLAB Communications and 5G Toolbox outputs.

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