A consistent OFDM carrier frequency offset estimator based on distinctively spaced pilot tones.

A consistent OFDM carrier frequency offset estimator based on distinctively spaced pilot tones.

A pilot-tone-based maximum likelihood estimator (PBMLE) for carrier frequency offset (CFO) in orthogonal frequency-division multiplexing (OFDM) systems is proposed. To obtain a consistent estimate of the CFO over a frequency-selective fading channel, the proposed method employs a preamble comprising...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:IEEE Transactions on wireless communications 3, 2 (2004).
1. Verfasser: Jing Lei
Format: Artikel
Sprache:English
Schlagworte:
OFDM.
Carrier frequency offset.
Coarse estimation.
Fine estimation.
Frequency selective fading channel.
Frequency synchronization.
Orthogonal frequency division multiplexing.
Periodogram.
Pilot tone based maximum likelihood estimator.
Suboptimal estimator.
Zero padding fast Fourier transform.