A New Design Method of Multi-Rate Quasi-Cyclic LDPC Codes

摘要：

A new method called fractional row combination is proposed to design a group of Multi-Rate Quasi-Cyclic LDPC codes in this paper. Unlike the original row combination method, it guarantees all the codes under different rates have concentrated check-node degree distributions, hence better performance under iterative decoding. Moreover, a combinatorial method based on BIBD is applied to our design. Together with fractional row combination, a family of multi-rate quasi-cyclic LDPC codes can be constructed. A low-complexity architecture of the universal decoder for all rates is also introduced.

作者: Zhichu Lin Zhixing Yang Changyong Pan

作者单位: Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 707-711

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）