Generalized Binary Representation for the Non-Binary LDPC Code with Decoder Design

• 作 者: YangYu[1]WenChen[1]JunLi[2]XiaoMa[3]BaomingBai[4]
• 机 构: Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai,China
• 出 处: 中国电子学会第二十一届信息论学术年会
• 发表日期: 2014年期

　　In this paper,we consider the performance-optimized non-binary LDPC(low density parity check)code over general linear group,(C).A new methodology for constructing the binary representation(generalized binary representation,GBR)of(C)is proposed which can be optimized with regard to both degree distributions and girth.As to the decoding of the GBR,we develop a low complexity hybrid parallel decoding process.It is shown that the decoding performance of the GBR under the proposed binary decoding process could closely approach the decoding performance of its mother code(C)under non-binary BP(belief propagation)decoding.A simple code optimization algorithm for the GBR is also provided.Simulations show the comparative results and justify the advantages of the proposed constructions.