Inspec keywords: parity check codes; binary codes; decoding; approximation theory; Gaussian processes; AWGN channels; channel coding

Other keywords: Gaussian approximation; belief-propagation decoding algorithm; message densities; regular LDPC codes; irregular LDPC belief-propagation decoding thresholds; memoryless binary input additive white Gaussian noise channels; low-complexity upper bound; sum-product decoding; threshold phenomenon; irregular LDPC codes; simple algorithmic method; density evolution; irregular low-density parity-check codes

Subjects: Interpolation and function approximation (numerical analysis); Codes; Other topics in statistics