Title :
A novel time and frequency synchronization scheme for OFDM systems
Author :
Yi, Guo ; Gang, Liu ; Jianhua, Ge
Author_Institution :
Nat. Key Lab. of Integrated Service, Xidian Univ., Xi´´an
fDate :
5/1/2008 12:00:00 AM
Abstract :
A new training symbol is designed and a novel time and frequency synchronization scheme for orthogonal frequency division multiplexing systems is proposed. The time synchronization is accomplished by using the symmetric conjugate of the training symbol in time domain and the frequency synchronization is finished by utilizing the good autocorrelation of the training symbol in frequency domain. The simulation results show that compared with conventional schemes, the proposed scheme gives a more accurate estimate of symbol timing and carrier frequency offset and provides a wider acquisition range for the carrier frequency offset.
Keywords :
OFDM modulation; frequency estimation; synchronisation; timing; OFDM systems; carrier frequency offset; frequency synchronization scheme; orthogonal frequency division multiplexing systems; symbol timing offset; time synchronization scheme; training symbol; AWGN; Autocorrelation; Frequency domain analysis; Frequency estimation; Frequency synchronization; Intserv networks; Laboratories; OFDM; Timing; Uncertainty;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2008.4560093
