A Joint Timing Recovery and SNR Estimation Algorithm for LDPC-Coded Systems

Author

Xiao-fei, Pan ; Xie-Dong, Hao

Author_Institution

Inst. of Commun. Eng., PLAUST, Nanjing

fYear

2006

fDate

22-24 Sept. 2006

Firstpage

1

Lastpage

5

Abstract

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

Keywords

iterative decoding; parity check codes; statistical analysis; synchronisation; LDPC-coded systems; SNR estimation algorithm; iterative decoding; joint timing recovery; performance degradation; statistical properties; symbol synchronization error; symbol timing; AWGN; Binary phase shift keying; Degradation; Estimation error; Iterative algorithms; Iterative decoding; Matched filters; Parity check codes; Pulse modulation; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on

Conference_Location

Wuhan

Print_ISBN

1-4244-0517-3

Type

conf

DOI

10.1109/WiCOM.2006.144

Filename

4149321