Abstract
This paper is to investigate the carrier frequency offset estimation for an orthogonal frequency division multiplexing (OFDM) communication system. Originating from the Fourier transform, OFDM uses the modulation of the amplitude and phase of subcarriers for communications. We propose a new approach that use the bit-error rate (BER) and the minimum square error (MSE) of the pilot as merits to achieve the carrier frequency offset (CFO) estimation of OFDM. The proposed method achieves lower root mean square error (RMSE) of CFO and BER on OFDM compared with conventional methods.
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