Conference PaperA high throughput pipelined LDPC decoder that supports multiple code rates and codeword sizes is proposed. In order to increase memory throughput, irregular block structured parity-check matrices are designed with the constraint of equally distributed odd and even nonzero block-columns in each horizontal layer for the pre-determined set of code rates. The designed decoder achieves a data throughput of more than 1 Gb/s without sacrificing the error-correcting performance of capacity-approaching irregular block codes. The architecture is prototyped on an FPGA and synthesized for an ASIC design flow
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