A Novel Construction Method of QC-LDPC Codes Based on Generalized ACE Constrained
Recently,structured LDPC codes have been focused on due to excellent performance and lower complexity.An improved construction of QC-LDPC based on a modified PEG algorithm is proposed in this paper.The modified Progressive Edge-Growth algorithm is a PEG algorithm with Approximated Cycle Extrinsic Message Degree (ACE) metric,which is used to describe the connectivity of cycles.The approach can maximize the girth of the cycles,improve the connectivity of cycles and have the advantages of QC algorithms.The simulation results demonstrate that the PEG algorithm based on ACE has lower Bit Error Rate (BER) and Frame Error Rate (FER) than the original PEG algorithm at the low Signal Noise Ratio (SNR) values,and has a relatively lower computational complexity.
progressive edge-growth algorithm (PEG) approximated cycle extrinsic message degree (ACE) Low-Density Parity-Check (LDPC)
Honghao Zhao Fanbo Meng Qingqi Zhao Jie Wang
Liaoning Electric Power Co.,Ltd.,Shenyang 110006,Liaoning,China
国际会议
郑州
英文
1812-1817
2013-10-19（万方平台首次上网日期，不代表论文的发表时间）