Title :
OFDM Integer Frequency Offset Estimator in Rapidly Time-Varying Channels
Author :
Shim, Eu-Suk ; You, Young-Hwan ; Kang, Sung-Jin ; Kim, Yong-Sung ; Kim, Do-Hoon ; Cho, Jin-Woong
Author_Institution :
uT Commun. Res. Inst., Sejong Univ.
fDate :
Aug. 31 2006-Sept. 1 2006
Abstract :
In this paper, we present a simple way of estimating the integer frequency offset of orthogonal frequency division multiplexing (OFDM) system over a rapidly time-varying channel. By utilizing the channel responses of neighboring subcarriers within one pilot symbol, the frequency offset estimator is derived. We show by simulation that the proposed estimator can accurately estimate the integer frequency offset with reduced computational burden
Keywords :
OFDM modulation; frequency estimation; time-varying channels; OFDM system; channel response; integer frequency offset estimator; neighboring subcarrier; orthogonal frequency division multiplexing; pilot symbol; time-varying channel; AWGN; Bandwidth; Computational modeling; Frequency conversion; Frequency estimation; Maximum likelihood estimation; OFDM; Robustness; Time-varying channels; Wireless networks;
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0573-4
Electronic_ISBN :
1-4244-0574-2
DOI :
10.1109/APCC.2006.255834
