2005 · 53 citations · 9 references
EngineeringComputer EngineeringComputer ScienceComputer ArchitectureField-programmable Gate ArraysReconfigurable ComputingChannel CodingCoding TheoryError Control CodingError-correcting CodesField-programmable Gate Array ArchitectureFpga ArchitectureBlock CodesBlock CodingConvolutional CodesEncoder DesignLdpc CodesLinear Block CodesParity Check CodesParity-check Matrices
In this paper, we present two encoding methods for block-circulant LDPC codes. The first is an iterative encoding method based on the erasure decoding algorithm, and the computations required are well organized due to the block-circulant structure of the parity check matrix. The second method uses block-circulant generator matrices, and the encoders are very similar to those for recursive convolutional codes. Some encoders of the second type have been implemented in a small field programmable gate array (FPGA) and operate at 100 Msymbols/second
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Low-Density Parity-Check (LDPC) Codes Constructed from Protographs
Jeremy Thorpe · 2003 · 653 citations
Accumulate repeat accumulate codes
Aliazam Abbasfar, D. Divsalar · 2004 · 88 citations