ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a termination sequence for LDPC-CC encoding by simple structure and to reduce an amount of the termination sequence to be transmitted to a transmission line.

SOLUTION: An LDPC-CC encoder 200 connects a first encoder 230 to a second encoder 240 to perform encoding and thereby carry out LDPC-CC encoding. The first encoder 230 performs the encoding on the basis of an information partial text matrix 110 obtained by extracting a sequence corresponding to information bits in a text matrix 100 and the second encoder 240 performs the encoding on the basis of a parity partial text matrix 120 obtained by extracting a sequence corresponding to parity bits in the test matrix 100. A termination sequence generation unit 210 generates a termination sequence composed of the same number of bits as memory length of the first encoder 230 and provides the generated termination sequence as an input sequence.

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