How do we calculate AWGN for WiMAX signals?

[yesh_r1]

Hi all..

I had a doubt..

Is the following (Matlab command) right ?

Noise Variance = Nfft/Nused/(10^(SNRdB/10))/2

 

[yesh_r1]

awgn wimax

Would appreciate replies ppl..

In need of ur help...


how do we calculate AWGN for WiMAX signals ?

 

[cwjcwjcwj]

awgn in wimax

σ^2= No/2

this is the standard formula for AWGN.......

 

[yesh_r1]

how to calculate awgn

Hi.. Thanks..

But for WiMAX (employing OFDM 256) how will it be defined...

I tried to find if the values Nfft(256) and Nused(192) will influence the AWGN value..

 

[rsrinivas]

wimax awgn

if u need AWGN use randn function of matlab....

 

[yesh_r1]

Re: AWGN for WiMAX

Nfft = 256;
Nused = 200;

variance=Nfft\Nused/(10^(SNRdB/10))/2;

noise=sqrt(variance)*(randn(1,rx_data_size) + j*randn(1,rx_data_size));

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Would this be the right way to calculate the awgn of wimax signals ?