Title :
A Low-Complexity Carrier Frequency Offset Estimator Independent of DC Offset
Author :
Lin, Hai ; Wang, Xianbin ; Yamashita, Katsumi
Author_Institution :
Dept. of Electr. & Inf. Syst., Osaka Prefecture Univ., Sakai
fDate :
7/1/2008 12:00:00 AM
Abstract :
The purpose of this letter is to propose a novel carrier frequency offset (CFO) estimator in the presence of DC offset (DCO), based on the pilot´s periodicity. The new CFO estimator can achieve satisfactory performance at low complexity, irrespective of the DCO presence. The superiority of the proposed estimator is verified by the subsequent analysis and numerical simulations.
Keywords :
OFDM modulation; frequency estimation; DC offset; carrier frequency offset estimator; AWGN; Communication standards; Digital video broadcasting; Frequency division multiplexing; Frequency estimation; Maximum likelihood estimation; Numerical simulation; OFDM; Universal Serial Bus; Wireless communication;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080408
