Title :
A carrier frequency offset estimator with minimum output variance for OFDM systems
Author :
Yang, Feng ; Li, Kwok H. ; Teh, Kah C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
In this letter, we propose a blind carrier frequency offset (CFO) estimator with high resolution and high bandwidth efficiency for orthogonal frequency-division multiplexing (OFDM) systems. The proposed estimator utilizes minimum output variance to estimate CFO. Simulation results show that the proposed estimator is highly accurate and reliable for OFDM systems.
Keywords :
OFDM modulation; frequency estimation; OFDM systems; blind carrier frequency offset estimator; intercarrier interference; minimum output variance; orthogonal frequency-division multiplexing; AWGN; Bandwidth; Degradation; Demodulation; Discrete Fourier transforms; Frequency division multiplexing; Frequency estimation; Interference; OFDM modulation; System performance; 65; Blind estimation; CFO; ICI; OFDM; carrier frequency offset; intercarrier interference; orthogonal frequency-division multiplexing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.837634
