Carrier frequency offset estimations in OFDM- downlink LTE systems

The main goal of this paper is to understand the effects of frequency offset on orthogonal frequency division multiplexing (OFDM) systems and to present frequency offset estimation techniques so that we can correct for their effects. The performance of each technique is compared under various conditions. The performance of the estimators is presented in terms of the mean square error (MSE) and Signals to noise ratio (SNR).