Title :
An efficient coarse carrier synchronization for CA carrier synchronization and TCC decoding
Author :
Wang, Jun-Jie ; Wang, Wei ; Peng, Hua
Author_Institution :
Inf. Sci. & Technol. Inst., Zhengzhou, China
Abstract :
This paper presents code-aided (CA) carrier synchronization for TDMA signals coded by turbo convolution code (TCC). An efficient coarse carrier synchronization, which can avoid bit error diffusion and process signals with large frequency offset, is improved before feedback structure of CA synchronization. The estimation of carrier preprocessing is used to initialize the CA carrier synchronization, according to approximation of EM algorithm, and TCC soft decoding. Simulation results show that low frame error rate (FER) and low bit error rate (BER) with the CA synchronization is obtained at good performance with the improved coarse carrier synchronization.
Keywords :
convolutional codes; decoding; error statistics; expectation-maximisation algorithm; synchronisation; time division multiple access; turbo codes; BER; CA carrier synchronization; EM algorithm; FER; TCC soft decoding; TDMA signals; bit error diffusion; bit error rate; carrier preprocessing estimation; coarse carrier synchronization; code-aided carrier synchronization; expectation-maximization algorithm; frame error rate; time division multiple access; turbo convolution code; Bit error rate; Convolution; Frequency synchronization; Information science; Iterative decoding; Paper technology; Performance loss; Quadrature phase shift keying; Signal processing; Time division multiple access; CA carrier synchronization; EM algorithm; TCC; TDMA signal; coarse carrier synchronization;
Conference_Titel :
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6347-3
DOI :
10.1109/ICCET.2010.5485303
