Dixon, JamesHubbell, JeffreyO'neil, ConlinSwartz, MelodyVelluto, Diana2015-09-222015-09-222015-09-222010https://infoscience.epfl.ch/handle/20.500.14299/118457An encoding/decoding apparatus and method using a low-density parity-check code (LDPC code) is disclosed. Basic column group information, serving as a set of information regarding positions of rows with weight 1, is extracted from a reference column in each column group of a predetermined parity-check matrix. Column group information transforms the positions of rows with weight 1 into positions whose lengths are within a required parity length. A parity-check matrix is generated according to the generated column group information. Data is encoded or decoded based on the generated parity-check matrix.patentEP2356228US2022168448JP2020073678JP6641423US2020000936US10335499JP2018188642JP6409020JP2017002280JP5995939US2016256569US9271929JP5814793EP2356228JP2015071762JP2012509983US2011223217EP2356228WO201006843242243027