Title :
Burst frame synchronization for OFDM transmission in multipath fading links
Author :
Baoguo, Yang ; Letaief, K.B. ; Cheng, Roger S. ; Zhigang, Cao
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
We present an improved burst frame synchronization method for orthogonal frequency division multiplexing (OFDM) systems. In the proposed method, we use the training data inserted in both the time and frequency domains to perform burst frame synchronization for OFDM transmission. Specifically, the supplementary guard interval inserted in the time domain is used for coarse frame synchronization, and the pilot sub-carriers inserted in the frequency domain are used to further improve the coarse frame synchronization accuracy. It is demonstrated that the proposed burst frame synchronization method can be done within one OFDM symbol period. In addition, it is shown that significant performance improvement can be achieved when the proposed scheme is used
Keywords :
OFDM modulation; Rayleigh channels; multipath channels; personal communication networks; radio links; synchronisation; OFDM transmission; Rayleigh fading channel; burst frame synchronization; coarse frame synchronization accuracy; frequency domain; mobile multimedia transmission; multipath fading links; orthogonal frequency division multiplexing; pilot sub-carriers; supplementary guard interval; symbol period; time domain; training data; wireless personal communication systems; Correlation; Degradation; Delay estimation; Fading; Frequency domain analysis; Frequency synchronization; Information technology; Intersymbol interference; OFDM; Training data;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.797144
