Abstract
An efficient frequency offset estimation and compensation method is proposed for LTE uplink system. In the proposed method, the current instantaneous frequency offset estimation combines with the last frequency offset estimation to get the current frequency offset estimation by Altering. According to the frequency offset estimation, data is compensated in inter-symbols and intra-symbols. The simulation result proves the validity of frequency offset estimation and compensation, and decreases system BER effectively. This method has less complexity and realizes easily and can track large frequency offset, and also adjust Alter factor to different radio conditions.
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