Frage

How can i create a sequence?
Hello, i want to create a sequence {xn} , xn ∈ {(±1, ±j)} .I want to create this sequence for n=1 to N=100 .How can i create ...

etwa 5 Jahre vor | 0 Antworten | 0

Frage

How to create a complex normal i.i.d.?
Hello , i want to create a i.i.d CN(0,σ^2) I create the variable like that : x=sqrt(var/2)*(randn+1i*randn); Is this corre...

etwa 5 Jahre vor | 1 Antwort | 0

Frage

How can i find the experimental and theoritical BER ?
Hello , i am given r[k]=h[k]s[k]+awgn , k=1,...N(N=100) where s[k] is a 4-QAM modulation and h[k] is a flat fading channel . H...

etwa 5 Jahre vor | 0 Antworten | 0

Frage

How can i find the BER of 4-QAM ?
Hello , How can i find the BER of 4-QAM ? thank you.

etwa 5 Jahre vor | 1 Antwort | 0

Frage

how can i convert 1xn to mxn matrix ?
Hello i have a variable x[k] k=1,...100 that takes some random numbers as an input, so i have a 1x101 matrix. How can i creat...

etwa 5 Jahre vor | 2 Antworten | 0

Frage

How can i create MxN matrix?
Hello , i have a package r[k] that contains k=1,...N symbols(N=1000) .So , i have a matrix 1x1001. I want to make l=5000 packag...

etwa 5 Jahre vor | 1 Antwort | 0

Frage

why i get the undefined variable message?
I have this code for QAM: p=(sign(randn(N,1))+2)/2; for i=1:length(p/2)-1 if p(i)==0 && p(i+1)==0 s(i)=1+1i; ...

etwa 5 Jahre vor | 1 Antwort | 0

Frage

How to calculate qammod for discrete time using for-loop?
Hello,i want to use the function qammod to create a 4-QAM signal. I want to create 4-QAM for the signal y[k] ,k=1,...N (N=100) ...

etwa 5 Jahre vor | 0 Antworten | 0