DocumentCode
745762
Title
Maximum likelihood estimation of OFDM carrier frequency offset
Author
Chen, Biao
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Syracuse Univ., NY, USA
Volume
9
Issue
4
fYear
2002
fDate
4/1/2002 12:00:00 AM
Firstpage
123
Lastpage
126
Abstract
We develop a maximum likelihood estimate for orthogonal frequency division multiplexing (OFDM) carrier frequency offset in the presence of virtual carriers. It is found that the resulting estimate has an identical form to that of a previously proposed blind OFDM carrier frequency offset estimate by Liu and Tureli (see IEEE Commun. Lett., vol.2, p.104-106, 1998). Insights are provided as to why these two algorithms are equivalent.
Keywords
OFDM modulation; fading channels; maximum likelihood estimation; multipath channels; signal classification; MUSIC-like algorithm; blind OFDM carrier frequency offset estimate; broadband wireless communications; intuitive projection argument; maximum likelihood estimation; multiplexing multipath fading; orthogonal frequency division multiplexing; virtual carriers; Delay effects; Discrete Fourier transforms; Fading; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Maximum likelihood estimation; OFDM modulation; Robustness; Wireless LAN;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.1001648
Filename
1001648
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