A Novel Stochastic Decoder for Extended BCH Code Based Turbo Product Codes.

Turbo product codes (TPC) have received recent attention as a competitive forward error correction scheme in high-speed communication protocols and Extended BCH based TPC has been accepted by several optical transmission standards. Decoding complexity is one of the major challenges for TPC. This paper proposes a novel stochastic TPC decoder that processes the decoding in a bit-wise iterative manner to reduce the decoding complexity. Further, a hard-decision decoding temporary frozen strategy is proposed to further speed up the convergence and reduce the decoding complexity. The evaluation results demonstrate significant complexity reduction with error correction performance improvements compared to the existing works, making it a promising candidate for practical application.