Applying free space path loss to a SNR formula

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ahmad
ahmad on 6 Sep 2022
Commented: Chunru on 6 Sep 2022
I apologise if this question is trivial.
I am trying to apply free space path loss to SNR formula, I'm confused how to apply fspl to the SNR formula with the following parameters. Any help will be much appreciated!
distance=0.02; %distance between ue and eNb in km
F= 10; %frequency in MHz
No= -174; %noise in dBm/Hz
P_tx= 43; %in dBm

Answers (1)

Chunru
Chunru on 6 Sep 2022
distance=0.02; %distance between ue and eNb in km
F= 10; %frequency in MHz
No= -174; %noise in dBm/Hz
PL = 20*log10(distance * 1000) % one way propagation loss in dB (spherical spreading)
PL = 26.0206
  2 Comments
ahmad
ahmad on 6 Sep 2022
i'm so sorry, but I still don't understand, how to apply free space path loss to snr formula?
one more, isnt it of the formula for free space path loss is like this?
FSPL(dB)=20log10(d(km))+20log10(f(GHz))+92.45
Chunru
Chunru on 6 Sep 2022
You need to check out the formula. It's difficult for us to guess without details of the problem.

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