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DESIGN FOR LIFTED LDPC CODES HAVING HIGH PARALLELISM, LOW ERROR FLOOR, AND SIMPLE ENCODING PRINCIPLE
DESIGN FOR LIFTED LDPC CODES HAVING HIGH PARALLELISM, LOW ERROR FLOOR, AND SIMPLE ENCODING PRINCIPLE
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机译:具有高并行度,低误码率和简单编码原理的高密度LDPC码设计
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摘要
A method of data encoding is disclosed. An encoder receives a set of information bits and performs an LDPC encoding operation on the set of information bits to produce a codeword based on a matched lifted LDPC code. The matched lifted LDPC code is based on a commutative lifting group and includes a number of parity bits and a submatrix to determine values of the parity bits. An order of the lifting group (Z) corresponds with a size of the lifting. A determinant of the submatrix is a polynomial of the form: ga+(g0+gL)P, where g0 is the identity element of the group, g0=gL2k, and P is an arbitrary non-zero element of a binary group ring associated to the lifting group.
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