I am trying to read OFDM synchronization paper by Schmidl and Cox. The math is slightly overwhelming.
What is the formula that they use in implementation that distinguishes between coarse estimation and fine estimation?
Secondly once fine frequency offset is done, how do you determine that you need to do coarse frequency synchronization or not? What is it that you will check to determine it? If anybody could explain with a set of equations that would be very helpful.