Title :
Novel frequency synchronization for TDS-OFDM systems
Author :
Ao, Lei ; Lin-Hui, Lai ; Xiao-Jin, Li ; Zong-sheng, Lai
Author_Institution :
Inst. of Microelectron., East China Normal Univ., Shanghai, China
Abstract :
Orthogonal frequency division multiplexing (OFDM) systems are highly sensitive to ICI caused by carrier frequency errors, so reliable time and frequency synchronization is crucial for the system. In this paper, a new method combined DA (PN estimation) and NDA (ML estimation) method to do frequency synchronization in frequency domain is proposed with large estimation range. Simulation and performance analysis show that our overall frequency estimator has high accuracy.
Keywords :
OFDM modulation; synchronisation; carrier frequency errors; frequency synchronization; inter-carrier interference; orthogonal frequency division multiplexing; overall frequency estimator; time domain synchronous OFDM; Analytical models; Channel estimation; Digital audio broadcasting; Digital video broadcasting; Discrete Fourier transforms; Frequency estimation; Frequency synchronization; OFDM; Performance analysis; Transmitters;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4735010
