This paper proposes protograph-based Raptor-like (PBRL) codes as a class of rate-
compatible low-density parity-check codes for binary-input AWGN channels. As with the …

613371642 B1 V2002 Yaoilleta' 2003/0081693 A1 5/2003 Raghaven etal. 1 1 g.
2003/0087634 A1 5/2003 Raghaven et a1. 613511832 B1 2/2002 We ' 2003/0112896 A1 …

US8418023B2 - Low density parity check decoder for irregular LDPC codes - Google Patents
US8418023B2 - Low density parity check decoder for irregular LDPC codes - Google Patents …

In one embodiment, a forward substitution component performs forward substitution based
on a lower-triangular matrix and an input vector to generate an output vector. The forward …

Embodiments of the present invention are methods for break ing one or more trapping sets
in a near codeword of a failed graph-based decoder, eg, an LDPC decoder. The methods …

In this paper, we present a random puncturing analysis of low-density parity-check (LDPC)
code ensembles. We derive a simple analytic expression for the iterative belief propagation …

Digital terrestrial television multimedia broadcasting-advanced (DTMB-A), the new digital
terrestrial television broadcasting (DTTB) system proposed by China, has been accepted by …

See application file for complete search history. In one embodiment, an LDPC
decoderperforms a targeted bit adjustment method to recover a valid codeword after the …

The advent of the 3D-NAND Flash memories introduced significant issues in terms of
characterization and system-level optimization that can be performed to increase the …

In one embodiment, a turbo equalizer is selectively operable in either first or second modes.
In the first mode, layered (low-density parity-check (LDPC)) decoding is performed on soft …