Post-FFT Fine Frame Synchronization for OFDM systems
نویسندگان
چکیده
This paper presents several post-FFT fine frame synchronization algorithms in OFDM systems. Two different approaches are followed: the first is a channelblind approach, which does not take into consideration the effect of the channel. The second is a channelparametric approach, which is a novel in that it employs simple models in order to approximate the effect of the unknown channel on a set of post-FFT frame samples. The proposed algorithms are evaluated and compared through simulations for different types of channels. It is shown that they can produce reliable estimates even for one dedicated OFDM symbol only. On the other hand, it is shown that the reliability of the estimates depends on the channel characteristics.
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