Title :
A Novel Timing and Frequency Synchronization Based on Symmetrical & Conjugate Prefix in OFDM System
Author_Institution :
South China Univ. of Technol., Guangzhou
Abstract :
A novel timing and frequency synchronization algorithm in OFDM system is proposed, which is based on symmetrical & conjugate prefix, and the expression of likelihood function is presented. Sharp correlation curve of symbol timing can be obtained using the symmetrical and conjugate character of prefix. Simulation shows that the proposed method can achieve a more accurate timing offset estimation and frequency synchronization than that based on cycle prefix.
Keywords :
OFDM modulation; synchronisation; wireless channels; OFDM System; cycle prefix; frequency synchronization; likehood funtion; sharp correlation curve; symbol timing; timing synchronization; Arithmetic; Computational complexity; Computational modeling; Computer science; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; OFDM; Signal processing; Timing;
Conference_Titel :
Communications, Computers and Signal Processing, 2007. PacRim 2007. IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1189-4
Electronic_ISBN :
1-4244-1190-4
DOI :
10.1109/PACRIM.2007.4313310
