DATA STRUCTURE FOR CHECK MATRIX OF ERROR CORRECTION CODE, AND CODING-RATE ADJUSTMENT DEVICE AND METHOD FOR ERROR CORRECTION CODE

摘要

Based on a specially-coupled LDPC code, there are obtained a data structure of a check matrix for an LDPC code having high error correction performance, and a method and device for varying a coding rate of an error correction code that realizes the high error correction performance. A data structure of a check matrix for the error correction code is a data structure of a check matrix for an error correction code, in which the error correction code is the LDPC code, and in which the check matrix has a matrix structure in which rows are rearranged for submatrices consisting of a part of columns of the check matrix. Moreover, in the method and device for varying the coding rate of the error correction code, a puncture position that is determined in accordance with a puncture position determination signal is a puncture position with which a number of columns in which two or more 1s are contained in a region of the check matrix that is directly affected by puncturing is minimized.