Title :
A new GIB frequency synchronization algorithm with reduced influence of ISI for OFDM systems
Author :
Xu, Lei ; Dong, Zai-wang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
29 June-1 July 2002
Abstract :
The paper analyzes the influence of ISI (intersymbol interference) on the method using the whole guard interval (GI) of the OFDM signal to estimate the fine frequency offset, and then proposes an improved method, which is based on the method of K. Takahashi and T. Saba (see Proc. IEEE GLOBECOM´01, vol.1, p.524-8, 2001). The performances of these methods are simulated under AGWN and 20-ray multipath channel models. The result demonstrate that our proposed method has good performance.
Keywords :
AWGN channels; OFDM modulation; fading channels; frequency estimation; intersymbol interference; mobile radio; multipath channels; synchronisation; AGWN channel; ISI; OFDM; fading channel; fine frequency offset estimation; frequency synchronization algorithm; intersymbol interference; mobile reception; multipath channel; whole guard interval; AWGN; Clocks; Computational modeling; Delay; Fading; Frequency estimation; Frequency synchronization; Intersymbol interference; OFDM; Sampling methods;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180587
