Channel Capacity Formula in MATLAB

Code

​clc;
clear;
B=[1,20,50,100];    % Bandwidth B in Hz
color=['r','b','m','g'];

snr_db=[0, 5, 10, 15, 20, 25, 30]; % in dB
snr=10.^(snr_db/10); % in linear scale

for i=1:1:4
 C=B(i)*log2(1+snr);        % Capacity calculation
 semilogy(snr_db,C,color(i));
 hold on;
end

title('Channel capacity formula');
xlabel('SNR (dB)');
ylabel('Capacity (bits/sec)');
grid on;
legend('show');
legend('B=1 Hz', 'B=20 Hz', 'B=50 Hz', 'B=100 Hz','Location','northwest');

.m File

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