PARITY CHECK MATRIX GENERATING APPARATUS AND METHOD FOR LDPC CODE, AND LDPC ENCODING/DECODING APPARATUS USING THE SAME

摘要

An apparatus and a method for generating a parity check matrix of an LDPC code and an LDPC encoding/decoding apparatus using the same are provided to perform a super speed decoding by designing an LDPC code supporting various information lengths and a code rate applying an information shortening method and a puncturing method. A first parity check matrix generating unit(31) generates a first parity check matrix comprised of a first information block and a parity block. A q-th parity check matrix generator generates the q-th parity check matrix by adding the q-th information block to the (q-1)-th parity check matrix. An information shortening unit(36) generates at least one parity check matrix different from the first to Q parity check matrixes by applying the information shortening to at least one parity check matrix among the first to Q parity check matrixes. A puncturing unit(37) generates at least one parity check matrix different from the first to Q parity check matrixes by applying a puncturing method to at least one parity check matrix among the first to Q parity check matrixes.