Cellular Network

S

Thread Starter

Sara

Hello,
I'm sara a Msc. student and I'm researching on "Multi-Cell MIMO Cooperative Networks". I have one question; Could you please guide me?
I'm studying about effect on error variance over in Imperfect CSI.
In our model we have:<pre>
channel : h[n] ~ CN (0 , 1) .
error : e[n] ~ CN (0 , Ephsilon_e^2 ) .
Imperfect CSI : h[n] = p*h[n-1] + e[n] ;</pre>
I have one question:
if user send his data after for example 3 time slots, what will be our model?

how we can find a relationship between time slots and error variance?
Could you please guide me or send me a reference about relationship between time slots and error variance?

I have another question about "Poer allocation waterfilling". i wrote a matlab code about it but i don't know how to multiply waterfilling matrix to our channel?

Could you please help me by guidance or sending an example matlab code?

Thanks a lot for your kindly guidance.
Kind Sincerely,
Best regards
Sara . Abdi
 
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