Design of a New Kind of LDPC Decoder

The properties of the LDPC (low-density parity-check) error-correcting codes are bearing down on Shannon limit, but it also needs to solve the problem of reducing the complexity of decoding as much as possible in practical applications. A new type of (1008, 3, 6) rules LDPC decoder was introduced in this paper. It adopted the min-sum-plus-correction-factor decoding algorithm and part parallel structure, which not only reduced the complexity of the hardware realization, but also improved the decoding speed. The maximum decoding rate could achieve 128 Mbit/s. These properties laid a good foundation for the actual application of LDPC.