English
- % MATLAB script for Illustrative Problem 8.5.
- echo off
- w=[1:5:20,25:20:100,130:50:300,400:100:1000,1250:250:5000,5500:500:10000];
- pn0_db=[-20:1:30];
- pn0=10.^(pn0_db/10);
- for i=1:45
- for j=1:51
- c(i,j)=w(i)*log2(1+pn0(j)/w(i));
- end
- end
- echo on
- pause % Press a key to see C vs. W and P/N0.
- k=[0.9,0.8,0.5,0.6];
- s=[-70,35];
- surfl(w,pn0_db,c',s,k)
- title('Capacity vs. bandwidth and SNR')
