Title :
A Novel Time and Frequency Synchronization Approach for OFDM Systems
Author :
Wang, Jibin ; Zhu, Jinkang
Abstract :
In this paper a novel time and frequency synchronization method for orthogonal frequency-division multiplexing (OFDM) system is proposed. Preamble symbols are not used for synchronization like traditional solutions, thus the overhead of preambles can be eliminated and the spectrum efficiency of the system can be increased greatly, especially for short data bursts. It uses the cyclic prefix for coarse time synchronization and fractional frequency offset estimation. The integer frequency offset is obtained exploiting the pilot information. And the decoded information is used for fine time synchronization and fractional frequency offset estimation to get better synchronization performance
Keywords :
OFDM modulation; decoding; frequency estimation; synchronisation; OFDM systems; fractional frequency offset estimation; frequency synchronization method; information decoding; orthogonal frequency-division multiplexing system; time synchronization method; Data communication; Decoding; Digital modulation; Frequency estimation; Frequency synchronization; Intersymbol interference; OFDM modulation; Quadrature amplitude modulation; Radio spectrum management; Timing;
Conference_Titel :
Information Technology and Applications, 2005. ICITA 2005. Third International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7695-2316-1
DOI :
10.1109/ICITA.2005.38
