Improving the error-floor performance of binary half-product codes

Abstract

Recently, a new type of product-like codes, known as half-product codes, has been studied for OTN applications. Binary half-product codes show excellent bit-error-rate performance under iterative hard-decision decoding in the waterfall region. To further improve the performance in the error floor region, a novel post-processor algorithm is proposed that relies on conditional bit flipping. For a class of important practical half-product codes, the error floor after post-processing is characterized.