Hi guys, I am working on optical ofdm, its not much of a different from normal ofdm. I have a problem at the receiver side where my constellation shifts in phase.
So I did a very simple equalization, where the data before IFFT which will be in so call frequency domain, assume that as X. Then the data at receiver after FFT which will be in so call frequency domain, assume that as Y.
So I did the channel estimation by taking Y/X and I will get H which is the channel property. Then to get what I trasmitted at the receiver side, to compensate all the distortion, since H=Y/X, so to get back X at the receiver, I did X=Y/H and I got back my exact constellation at the receiver.
Im not sure whether this is correct or no, please someone advice me on this. Thank you very much.