A Novel Synchronization Scheme for OFDM-Based CMMB Receivers

摘要：

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-2dB 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.

关键词： CMMB CFO SFO OFDM synchronization

作者: Xiuping Chen Chuan Wu Zhou Chen Bo Shen Xiaoyang Zeng

作者单位: State Key Lab.of ASIC and System,Department of Microelectronics,Fudan University,Room 320,Rd Zhanghe State Key Lab.of ASIC and System,Department of Microelectronics,Fudan University,Shanghai,China Sifond Microelectronics Co.,Shanghai,China

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 529-532

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）