| 摘要 |
PROBLEM TO BE SOLVED: To obtain good reception quality when LDPC-CC (Low-Density Parity-Check Convolutional Codes) are created from convolution codes and a signal sequence is transmitted after performing error correction encoding using the LDPC-CC on the signal sequence.SOLUTION: "1"s are added to an approximate lower triangular matrix of a check matrix H (501, 502), and an equation (1) which is a parity check polynomial of a convolutional code at this time is set so that α,...,αare 2K+1 or more and &bgr;,...,&bgr;are 2K+1 or more to obtain a parity sequence P(D) by the equation (1). |
