DocumentCode
1306667
Title
ML estimation of time and frequency offset in OFDM systems
Author
Van de Beek, Jan-Jaap ; Sandell, Magnus ; Borjesson, Per Ola
Author_Institution
Div. of Signal Processing, Lulea Univ. of Technol., Sweden
Volume
45
Issue
7
fYear
1997
fDate
7/1/1997 12:00:00 AM
Firstpage
1800
Lastpage
1805
Abstract
We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode
Keywords
frequency division multiplexing; frequency estimation; maximum likelihood estimation; synchronisation; tracking; OFDM systems; acquisition mode; carrier-frequency offset estimator; cyclic prefix; maximum likelihood; orthogonal frequency-division multiplexing; redundant information; symbol-time estimator; time offset; tracking mode; AWGN; Discrete Fourier transforms; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; OFDM; Radio broadcasting; TV broadcasting; Uncertainty;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.599949
Filename
599949
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