期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2019
卷号：97
期号：3
页码：867-878
出版社：Journal of Theoretical and Applied
摘要：Synchronization is the essential process between the transmitter and the receiver of wireless communication system, such as orthogonal frequency division multiplexing. Two essential factors, namely, carrier frequency offset (CFO) and symbol timing offset (STO) are related to synchronization. Each factor has several methods for solving the problems from synchronization in the time and the frequency domain. In this study, the work is performed in the time domain that handles CFO effect. It uses two techniques, namely, a training sequence and a cyclic prefix. Each technique hasadvantages and disadvantages. The proposed method uses a hybrid of these two techniques for CFO estimation. Simulation results corroborate that the proposed method has the combined benefits of both methods. The signal-to-noise ratio is used as the indicator. It plays substantial role with respect to bit error rate by transitioning from one technique to another as shown in the research results. MATLAB is used to set all simulation results.
关键词：OFDM; carrier frequency offset; Training Sequence; cyclic prefix
