A Class of Improved Low-Density Parity-Check Codes Constructed Based on Gallagers Form

摘要：

Focused on the problem that short cycles degrade the iterative decoding performance of finite length LDPC, a class of improved Low Density Parity Check (LDPC) Codes constructed based on Gallagers form is designed. On the basis of keeping down the basic form of Gallager’s construction, a quasi-cyclic form is used, then the new codes are free of cycles of length 4 and have good minimum distance. Simulation results demonstrated that the improved codes are better than Gallagers codes when block length is small.

作者: Guangen Wu Pinyi Ren

作者单位: School of Electronics and Information Engineering Xian Jiaotong University Xian, 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: 694-697

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）