LDPC with no Error Floors for Errors and Erasures Recovery

In this presentation, we propose an LDPC solution for emerging non volatile memories, such as 3D Xpoint or RRAMs. We optimize the quasi-cyclic LDPC so that the erasures coming from die read failures can be easily recovered before decoding. We then introduce a new Erasure-FAID decoder, with the feature of using different update rules for the erased and non-erased bits. Together with using the concept of decoder diversity, we show that our new decoder gives impressive gains compared to the legacy Reed-Solomon solution.