Title :
A High Performance Frequency Offset Estimator for OFDM Systems Based on a Special Preamble
Author :
Wu, Yun ; Luo, Hanwen ; Ding, Ming ; Liu, Renmao
Author_Institution :
Dept. of Electr. Eng., Shanghai Jiaotong Univ.
Abstract :
In this paper, a novel preamble which is composed of two OFDM training symbols with different numbers of identical parts is designed for OFDM systems. Based on the designed preamble, we propose a high performance frequency offset estimator by jointly using the CFO estimations independently obtained from the two training symbols. By elaborately selecting the values of the numbers of identical parts, the proposed estimator can estimate frequency offset over tens of the subcarrier spacing while achieving a superior estimate performance
Keywords :
OFDM modulation; frequency estimation; CFO estimations; OFDM systems; OFDM training symbols; high performance frequency offset estimator; special preamble; subcarrier spacing; Computational complexity; Data communication; Design engineering; Frequency domain analysis; Frequency estimation; Land mobile radio; Mobile communication; OFDM; Oscillators; Phase estimation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254414
