If i use hermitian symmetry after IFFT and clip negative part to make it only positive signal for VLC system. I am getting only straight line in BER curve. Can anyone help me in this problem. I can provide the code which i am using.
Sanjeev , if you haven't fixed it as yet , share it will try ...
give me your email id. so, that i can mail you. i can't post here.
ok : [email protected]
I also face similar problem. dear sanjeev plz help me.
how to apply hermitian symmetry before ifft?
here is the answer.
just flip and conjugate data before ifft to apply hermitian symmetry.
by using this technique we can make real signal.
best of luck..
I have the same problem of hermitian symmetry pleas help me
Dear Sanjeev Kumar
For Matlab, you can do as an example
HStoinput=[0, input,0,fliplr(conj(input))];% Apply Hermitian symmetry to input then
OIFFT =ifft(HSoinput); % will be real
All the best
dear Ayad Atiyah Abdulkafi
can I contact with u and can u explained more details
thank u @ Ayad Atiyah Abdulkaf
can u explained more details
thank u
@ Ayad Atiyah Abdulkaf
Dear Eslam Fadly
If you have complex input X=[x1 x2 x3 .......xn],
then you have to modify it to have HS , e.g.
X_hs=[0, X,0,fliplr(conj(X))]'; % then the
IFFT_output= ifft(X_hs,N); % will be real values.
I hope it is clear now for you.
Regards
Thank you so much Ayad Atiyah Abdulkafi . very usefull information.Can you also explain how to remove hermitian symmetry in demodulation side
I have a problem after applying the hermitian that the matrix dimension are inconsistent
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