A New Technique for Frequency Offset Compensation in OFDM Systems
Details
In this paper, we propose a new technique that can compensate frequency offset which causes the intercarrier interference(ICI)in OFDM systems. This proposed technique is a nondata-aided type which means the frequency offset compensation can be done using only the information bearing symbols, and it uses an adaptive filter to estimate frequency offset. Since the tracking range by this technique is influenced by the channel characteristics, the number of subcarriers and the number of guard-subcarriers, we analyse these characteristics theoretically and clarify compensation performances by computer simulation.
