Threshold Determination of LDPC Codes for Turbo Equalization Based on EXIT Chart

摘要：

Optimization of LDPC codes based on (EXIT) chart for MIMO channel was recently proposed by Brink. We extended Brinks idea to the performance analysis and threshold determination of LDPC codes for MMSE turbo equalization. The receiver was partitioned into two blocks. A new scheme to obtain EXIT curve of block I was given. Furthermore a new algorithm was proposed based on the EXIT curve fitting, which can obtain the ensemble threshold automatically. Decoding trajectory of (3,6) regular LDPC codes for MMSE turbo equalization was also analyzed in this paper. Threshold of (3,6) regular LDPC codes obtained by proposed algorithm is only 0.03dB away to Narayanans result over the same ISI channel.

作者: Xu Hua Xu Cheng-qi Kang Su-cheng

作者单位: College of Communication & Information Engineering Nanjing university of Posts & Telecommunications College of Communication & Information Engineering Nanjing university of Posts & Telecommunications Physics Department Yancheng Teachers College Yancheng, Jiangsu, 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: 698-701

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）