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Method and system for encoding short block length low density parity check (LDPC) codes
Method and system for encoding short block length low density parity check (LDPC) codes
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机译:短块长度低密度奇偶校验码的编码方法和系统
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摘要
An approach is provided for generating Low Density Parity Check (LDPC) codes. An LDPC encoder (203) generates a short LDPC code by shortening longer mother codes. The short LDPC code has an outer Bose Chaudhuri Hocquenghem (BCH) code. According to another aspect, for an LDPC code with code rate of 3/5 utilizing 8-PSK (Phase Shift Keying) modulation, an interleaver provides for interleaving bits of the output LDPC code by serially writing data associated with the LDPC code column-wise into a table and reading the data row-wise from right to left. The above approach has particular application in digital video broadcast services over satellite.
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