QC-LDPC convolutional codes enabling low power trellis-based decoders

摘要

A low-density parity check (LDPC) encoding method for increasing constraint length includes determining a LDPC code block H-matrix including a systematic submatrix (Hsys) of input systematic data and a parity check submatrix (Hpar) of parity check bits. The method includes diagonalizing the parity check submatrix (Hpar). The method includes identifying a set of rows of the H-matrix that form a complete set of the input systematic data. The method includes selecting an input bit granularity (γ) and encoding latency. The method further includes obtaining a quasi-cyclic LDPC (QC-LDPC) convolutional code H-Matrix. Further, the method includes combining the set of rows into a single row.

主权项

1. A low-density parity check (LDPC) encoding method for increasing constraint length, the method comprising:
determining an LDPC code block H-matrix including a systematic submatrix (Hsys) of input systematic data and a parity check submatrix (Hpar) of parity check bits; diagonalizing the parity check submatrix (Hpar); identifying a set of rows of the LDPC code block H-matrix that form a complete set of the input systematic data; selecting an input bit granularity (γ) and encoding latency; obtaining a quasi-cyclic LDPC (QC-LDPC) convolutional code H-Matrix; and combining the set of rows into a single row.