Title :
Fast coarse estimator of carrier frequency offset for OFDM systems
Author :
Seo, Bo Seok ; Kim, Su Chang ; Park, Jinwoo
Author_Institution :
Res. Inst. for Inf. & Commun. Technol., Korea Univ., Seoul, South Korea
fDate :
11/21/2002 12:00:00 AM
Abstract :
A coarse carrier frequency offset estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems is proposed. The algorithm exploits the phase difference of the adjacent subcarriers of the received signal, which is proportional to the frequency offset. The proposed scheme necessitates much lower computational load compared to the conventional correlation based methods, while it reveals similar estimation performance for practical OFDM systems.
Keywords :
OFDM modulation; frequency estimation; OFDM systems; carrier frequency offset; computational load; fast coarse estimator; orthogonal frequency division multiplexing; phase difference; received signal; subcarriers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20021026
