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This paper investigates the implementation of multi-rate low-density parity-check (QC-LDPC) codes. We propose a novel scheme to construct multi-rate QC-LDPC codes from the regular mother codes. These QC-LDPC codes can share a single particular decoder which is designed for the regular QC-LDPC code previously in spite of either irregularity or regularity. Based on this construction, encoding of the...
In this paper, extending technique is employed to quasi-cyclic low-density parity-check (QC-LDPC) codes to construct lower-rate codes from a higher-rate mother code since quasi-cyclic codes can be encoded with simple shift registers, with linear complexity based on their generators. We also present the fitting flexible hardware encoding schemes designed for extended QC-LDPC codes. In the serial-input...
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