A Novel Frequency Offset Estimation Algorithm for OFDM Systems

A new frequency offset estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems was proposed by using a specially designed training symbol. Requiring only one training symbol, this algorithm can efficiently estimate integer frequency offset and fraction frequency offset. The timing synchronization can also be obtained by using the proposed training symbol. Simulation results show that the proposed method not only reduces the number of the training symbols but also improves the accuracy of frequency offset estimation, while comparing with conventional algorithms.