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Plotting Rician Fading Channel

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Saad Khan
Saad Khan el 1 de Nov. de 2020
Editada: Swetha Polemoni el 4 de Nov. de 2020
I'm having trouble plotting rician pdf.
I have already managed to plot what i think is the empircal density funtction in a histogram.
What i need is a trace red line like this image:
so far i have this:
generated using this code:
u = 2;
s = sqrt(0.5);
% Generate in-phase component
X = normrnd( u, s, [1 randSamples]);
% Generate quadrature component
Y = normrnd( u, s, [1 randSamples]);
% Rician RV, S = sqrt( X^2 + Y^2 )
S = sqrt( X .^ 2 + Y .^ 2 );
% empirical probability density
[f,x] = ecdf(S);
ecdfhist(f,x, 20); hold on
How to get the red line?
This is the question for reference:
Thanks.

Respuesta aceptada

Swetha Polemoni
Swetha Polemoni el 4 de Nov. de 2020
Editada: Swetha Polemoni el 4 de Nov. de 2020
Hi Saad Khan,
You might want to smoothen the histogram.
Here is the example for understanding smoothening of histogram using "spline" command.
You might consider "ksdensity" for smoothening. Below code snippet is for better understanding.
k=5;
s = [randn(100,1); randn(100,1)+k];
histogram(s,'Normalization','probability')
[f,x] = ksdensity(s);
hold on
plot(x,f)
These might help you.
  4 comentarios
Saad Khan
Saad Khan el 4 de Nov. de 2020
Thank you!
Can you tell me which value corresponds to the K factor of 4 referred to in the question?
Swetha Polemoni
Swetha Polemoni el 4 de Nov. de 2020
Editada: Swetha Polemoni el 4 de Nov. de 2020
Not sure about K factor.

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