In this letter, we propose a new technique to design quasi-cyclic low-density parity-check
(QC-LDPC) codes with girth 8 and variable node degrees 3 and 4. Small trapping sets are …

We propose a systematic design of protograph-based quasi-cyclic (QC) low-density parity-
check (LDPC) codes with low error floor. We first characterize the trapping sets of such …

Low-density parity-check (LDPC) codes exhibit excellent error correcting capability.
However, small trapping sets in the Tanner graph are harmful to the iterative decoding …

We present a simulated annealing method that construct high-girth quasi-cyclic low-density
parity check (QC-LDPC) codes. The proposed method is applicable to both regular and …

In this letter, for the first time, an edge-coloring technique is proposed to characterize a
certain elementary trapping set (ETS) and to obtain sufficient conditions to avoid small ETSs …

Many studies were carried out for the construction of low density parity-check (LDPC) codes.
They usually focused on introducing the construction methods for good LDPC codes instead …

In this paper, we give lower bounds on the size of (a, b) elementary trapping sets (ETSs) of
variable-regular LDPC codes with any girth, g, and irregular ones with girth 8, where a is the …

Quasi-cyclic low-density parity-check (QC-LDPC) codes have efficient hardware
implementation and excellent correcting performance. However, the existence of trapping …

Quasi-cyclic low-density (QC-LDPC) codes benefit from efficient encoding hardware and
display excellent error correcting performance. Therefore, they have been accepted into the …

低密度奇偶校验(low-density parity checkꎬ LDPC) 码的校验节点通常采用单奇偶校验(single
parity checkꎬ SPC) 码ꎬ 然而当采用一种具有更强纠错能力分量码替换LDPC 码中的SPC …