Hi
I am currently writing matlab code for simulation of ofdm in frequency delective fading channel. I use rayleighchan function in matlab. i want to equalize signal in reciever, i cant obtain the channel response function? i realy confused?! rayleighchan is a class, but i need an equation....
please help me
Re: rayleighchan & frequency channel response function
i m trying to get CIR,h, as 128 by 1 matrix..but this program generates 128 by 4689 matrix..plz explain alphaMatrix and its use..?
infading can be any random matrix?
Sorry I had not seen this forum for years. Hopefully it's not too late for me to answer this :smile:
The inFading is the input for the rayleigh channel. It is your transmitted signal.
I am not the one who created rayleighchan class and alpha matrix, so I can only make a guess. My best guess is that the alpha matrix simulates time-variance behavior of the fading channel.
If fd/Fs is very small (almost zero), I noticed that every column of the h matrix are identical, indicating that the impulse response doesn't change over time (time-invariant). As for channel with large normalized doppler frequency, the impulse response between each time sample varies over time (time-variant channel).