Title :
Frequency-offset synchronization and channel estimation for OFDM-based transmission
Author :
Song, Hyoung-Kyu ; You, Young-Hwan ; Paik, Jong-Ho ; Cho, Yong-Soo
Author_Institution :
Dept. of Inf. & Commun. Eng., Se-Jong Univ., Seoul, South Korea
fDate :
3/1/2000 12:00:00 AM
Abstract :
This letter is concerned with a frequency offset estimation technique for OFDM based transmission systems. The frequency estimation technique utilizes a repetitive signal structure inside of a OFDM symbol which is used to enlarge the range and increase the accuracy of offset estimation. Also, an averaged decision-directed channel estimation (ADDCE) technique suitable for burst data is proposed.
Keywords :
OFDM modulation; Rayleigh channels; frequency estimation; multipath channels; synchronisation; time-varying channels; ADDCE; OFDM-based transmission; accuracy; averaged decision-directed channel estimation; burst data; frequency offset estimation technique; frequency-offset synchronization; range; repetitive signal structure; AWGN; Channel estimation; Equalizers; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Intersymbol interference; Nonlinear distortion; OFDM modulation; Wireless sensor networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.831036
