BCJR algorithm

The BCJR algorithm is an algorithm for maximum a posteriori decoding of error correcting codes defined on trellises. The algorithm is named after its inventors: Bahl, Cocke, Jelinek and Raviv. This algorithm is critical to modern iteratively-decoded error-correcting codes including turbo codes and low-density parity-check codes.

Steps involved

Based on the trellis:

Berrou, Glavieux and Thitimajshima simplification.

framework implements BCJR algorithm for forward error correction codes and channel equalization in C++.

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