A Joint Timing Recovery and SNR Estimation Algorithm for LDPCcoded Systems

摘要：

The effects of both symbol synchronization error and SNR estimation on the LDPC decoding performance have been investigated. Based on the statistical properties of the LDPC decoding output value, a joint timing recovery and SNR estimation algorithm is given, which puts the symbol synchronization, SNR estimation and iterative decoding together by two cooperative loops. After several iterative steps, the estimated values of symbol synchronization error and SNR convergent rapidly, and little performance degradation has been observed than the system with foregone SNR and accurate symbol timing.

关键词： LDPC symbol timing SNR estimation

作者: Pan Xiao-fei Hao Xie-dong

作者单位: Institute of Communications Engineering,PLAUST,Nanjing 210007,China

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）