ML estimation of time and frequency offset in OFDM systems
نویسندگان
چکیده
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.
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عنوان ژورنال:
- IEEE Trans. Signal Processing
دوره 45 شماره
صفحات -
تاریخ انتشار 1997