Method and apparatus for channel decoding in a communication system using LDPC codes perforated

A method for channel decoding using a parity check code, low density LDPC, the method comprising: demodulating a signal transmitted from a transmitter; determining (1401) bit positions drilled parity based on information about a predetermined bit sets drilled parity order and a number of sets of bits punctured parity; and decoding (1409) data using the positions of bits punctured parity; wherein the predetermined sets of bits punctured parity order is determined as 6, 4, 13, 9, 18, 8, 15, 20, 5, 17, 2, 22, 24, 7, 12, 1, 16 , 23, 14, 0, 21, 10, 19, 11, 3, when a length codeword, N1, is 16200, length information, K1, is 7200, a modulation scheme is modulated by quadrature amplitude , QAM, 16 and the number of parity bits for parity bits set M1 is 360 parity bits, wherein the sets of parity bits are formed by the following equation where Pj ** ** Formula indicates the jth set of parity bits, N1 indicates a length of an LDPC codeword, K1 code indicates a length of an information word, q is a value satisfying q> = (N1 - K1) / M1, where K1 / M1 is an integer and 0 <= j

Keywords:

• Low-density parity-check code
• Discrete mathematics
• Parity (mathematics)
• Decoding methods
• QAM
• Mathematics
• Code word
• Parity bit
• Communication channel
• Modulation

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