A novel synchronization scheme for OFDM-based CMMB receivers

Author

Chen, Xiuping ; Wu, Chuan ; Chen, Zhou ; Shen, Bo ; Zeng, Xiaoyang

Author_Institution

Dept. of Microelectron., Fudan Univ., Shanghai, China

fYear

2009

fDate

20-23 Oct. 2009

Firstpage

529

Lastpage

532

Abstract

A novel synchronization scheme aiming at the special frame structure of China mobile multimedia broadcasting (CMMB) is presented in this paper. Based on the fact that CMMB system is very sensitive to the synchronization error, this scheme gives a solution which integrates high precision symbol timing recovery, carrier frequency recovery and sampling clock frequency recovery. Simulation results show that proposed algorithm can perform robustly at -2 dB SNR and TU6 channel with 300Hz Doppler frequency shift. The root mean square error (RMSE) of sampling clock frequency offset estimation and residual carrier frequency offset estimation is 50% less than that of conventional scheme.

Keywords

OFDM modulation; broadcasting; mean square error methods; mobile radio; multimedia communication; synchronisation; CMMB system; China mobile multimedia broadcasting; OFDM-based CMMB receivers; frequency 300 Hz; high precision symbol timing recovery; novel synchronization scheme; orthogonal frequency division multiplexing; root mean square error; sampling clock frequency recovery; Application specific integrated circuits; Digital audio broadcasting; Digital video broadcasting; Frequency estimation; Frequency synchronization; Microelectronics; Multimedia communication; OFDM; Sampling methods; Timing; CFO; CMMB; OFDM; SFO; synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 2009. ASICON '09. IEEE 8th International Conference on

Conference_Location

Changsha, Hunan

Print_ISBN

978-1-4244-3868-6

Electronic_ISBN

978-1-4244-3870-9

Type

conf

DOI

10.1109/ASICON.2009.5351635

Filename

5351635