METHOD OF GENERATING PARITY-CHECK MATRIX, ENCODING/DECODING METHOD FOR LOW DENSITY PARITY-CHECK CODE WITH VARIABLE INFORMATION LENGTH AND VARIABLE CODE RATE AND APPARATUS USING THE SAME

摘要

A method of generating a parity-check matrix of a low density parity-check (LDPC) code with a variable information length and a variable code rate, an encoding/decoding method, and an apparatus using the same are provided. The method of generating a parity-check matrix of an LDPC code includes: a first parity-check matrix generation process of generating a first parity-check matrix constructed with a first information block and a parity block; and an m-th parity-check matrix generation process of generating an m-th parity-check matrix by an m-th information block to a generated (m-1)-th parity-check matrix (1 m ≤ M, where M is a natural number equal to or greater than two). Accordingly, it is possible to provide an LDPC code with a variable information length and a variable code rate which has a low complexity for encoding/decoding and a high quality of correction and detection of errors.