摘要:
The invention relates to a method and apparatus for a channel decoding using a Low-Density Parity-Check (LDPC) code, the method comprising: demodulating a signal transmitted from a transmitter; determining position of the punctured parity bits by estimating information about a predetermined order of parity bit sets to be punctured and the number of parity bit sets ; and decoding data using the positions of the punctured parity bits, wherein determining position of punctured parity bits comprises, determining a number of parity bits to be punctured; determining a number of parity bit sets to be punctured based on the determined number of parity bits to be punctured; and acquiring a predetermined order of parity bit sets, wherein the predetermined order of parity bit sets to be punctured 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 codeword length is 16200 and an information length is 7200.
摘要:
A method and apparatus for channel decoding in a communication system using a Low-Density Parity-Check (LDPC) code is provided. The method includes demodulating a signal transmitted from a transmitter; determining if there are any punctured parity bits in the demodulated signal; determining positions of the punctured parity bits by estimating information about a puncturing pattern when there are punctured parity bits; and decoding data using the positions of the punctured parity bits, wherein the information about the puncturing pattern includes a puncturing pattern obtained by considering a modulation scheme.
摘要:
The invention relates to a method and apparatus for a channel decoding using a Low-Density Parity-Check (LDPC) code, the method comprising: demodulating a signal transmitted from a transmitter; determining position of the punctured parity bits by estimating information about a predetermined order of parity bit sets to be punctured and the number of parity bit sets ; and decoding data using the positions of the punctured parity bits, wherein determining position of punctured parity bits comprises, determining a number of parity bits to be punctured; determining a number of parity bit sets to be punctured based on the determined number of parity bits to be punctured; and acquiring a predetermined order of parity bit sets, wherein the predetermined order of parity bit sets to be punctured 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 codeword length is 16200 and an information length is 7200.
摘要:
A method and apparatus for channel encoding and decoding in a communication system using punctured Low-Density Parity-Check (LDPC) code is provided. The puncturing pattern depends on the modulation scheme and is based on puncturing of parity bit sets that reflect the properties of the LDPC codes, which are preferably LDPC codes as defined in the context of the DVB-S2 specification.
摘要:
The invention relates to a method and apparatus for a channel encoding using a Low-Density Parity-Check (LDPC) code, the method comprising: determining a number of parity bits for puncturing; forming parity bit sets from dividing the parity bits at predetermined intervals; determining a number of parity bit sets based on the number of parity bits for puncturing; and puncturing parity bits based on the determined number of parity bit sets to be punctured, and according to a predetermined order of parity bit sets to be punctured,
wherein the order of parity bit sets to be punctured 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 codeword length is 16200 and an information length is 7200.
摘要:
The invention relates to a method and apparatus for a channel encoding using a Low-Density Parity-Check (LDPC) code, the method comprising: determining a number of parity bits for puncturing; forming parity bit sets from dividing the parity bits at predetermined intervals; determining a number of parity bit sets based on the number of parity bits for puncturing; and puncturing parity bits based on the determined number of parity bit sets to be punctured, and according to a predetermined order of parity bit sets to be punctured,
wherein the order of parity bit sets to be punctured 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 codeword length is 16200 and an information length is 7200.
摘要:
A method and apparatus for channel decoding in a communication system using a Low-Density Parity-Check (LDPC) code is provided. The method includes demodulating a signal transmitted from a transmitter; determining if there are any punctured parity bits in the demodulated signal; determining positions of the punctured parity bits by estimating information about a puncturing pattern when there are punctured parity bits; and decoding data using the positions of the punctured parity bits, wherein the information about the puncturing pattern includes a puncturing pattern obtained by considering a modulation scheme.