Abstract: A method for generating an LDPC (low density parity check) code, comprising steps of: determining the number of rows and the number of columns in a matrix for forming the LDPC code according to predetermined code rate and constraint length; dividing the matrix into a plurality of layers according to a predetermined column weight; selecting a parallelization factor; dividing at least one of said layers in the matrix into a plurality of sub-layers and dividing each said sub-layer into a plurality of modular data blocks, according to the parallelization factor; determining the position of each weighted element in each modular data block according to said column weight and a predetermined row weight, so as to form said LDPC code.