Title :
A joint mode detection and coarse symbol synchronization scheme for DVB-H
Author :
Shi, Zewen ; Zhang, Yulong ; Ying, Yan ; Zeng, Xiaoyang
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
This work presents a joint synchronization technique for DVB-H system with adaptive FFT mode detection, guard interval length detection, coarse symbol synchronization (CSS) and fractional carrier frequency offset (FCFO) estimation. Different from conventional algorithm, we develop a threshold-free scheme which is more reliable in frequency selective fading channel. Simulation results show almost 2 dB performance gain compared to Threshold-based method (TBM), especially with low SNR. Also it is cost-effective and power consumption is decreased by adopting this new scheme.
Keywords :
channel estimation; digital video broadcasting; fast Fourier transforms; wireless channels; DVB-H; adaptive FFT mode detection; coarse symbol synchronization scheme; fractional carrier frequency offset estimation; guard interval length detection; joint mode detection; Application specific integrated circuits; Baseband; Clocks; Delay; Digital video broadcasting; Fading; Frequency domain analysis; Frequency estimation; Frequency synchronization; Frequency synthesizers; DVB-H; Delay Correlation; Mode Detection; Threshold-based Method; Threshold-free Method;
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
DOI :
10.1109/ASICON.2009.5351531
