Intel Corporation
LDPC Decoder Apparatus, Device, System, Method and Computer Program

Abstract:

Examples relate to a Low-Density Parity-Check Code (LDPC) decoder apparatus or device, to an LDPC decoder system and to corresponding methods and computer programs. The LDPC decoder apparatus comprises input circuitry and processing circuitry. The processing circuitry is configured to obtain a syndrome of a codeword via the input circuitry. The processing circuitry is configured to perform LDPC iterative decoding using the obtained syndrome, wherein the changes to be applied to the codeword due to the LDPC iterative decoding are recorded by applying the changes to a surrogate codeword. The processing circuitry is configured to record changes to be applied to the codeword due to the LDPC iterative decoding by storing the surrogate codeword in a memory structure.