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Create matlab meijernewss #5

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57 changes: 57 additions & 0 deletions matlab meijer
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clc;
clear all;
format long;


snrFso_dB =linspace( 0,40,50);
snrFso = 10.^(snrFso_dB / 10);

DR = 0.2;
d = 1000;
sigma_s = 0.3;
wz = 2;
v = sqrt(pi) * DR / (2 * sqrt(2) * wz);
wz_eq = sqrt((wz^2 * sqrt(pi) * erf(v)) / (2 * v * exp(-v^2)));
eta = (wz_eq^2) / (2 * (sigma_s)^2);

wi = 9.39507091230114;
xi = 0.00053929470556;
s = 50;
beta = 16.04;

Cn_sqr = 0.5*10^(-14);
lambda_fso = 1.55*10^(-6);
k = 2 * pi / lambda_fso;
sigma_r = sqrt(1.23 * Cn_sqr * k^(7/6) * d^(11/6));

a = 1 ./ ((exp((0.49 .* (sigma_r).^2) ./ ((1 + 1.11 .* (sigma_r).^(12/5)).^(7/6)))) - 1);
b = 1 ./ ((exp((0.51 .* (sigma_r).^2) ./ ((1 + 0.69 .* (sigma_r).^(12/5)).^(5/6)))) - 1);
ABER = zeros(1, length(snrFso));
ber = 0;
prefactor = (1 / (2 * sqrt(pi)));
an=[1];%end
bq=[0];%end
ap= [1, eta^2 + 1]; %start
bm=[eta^2, a, b];%start

for i = 1:s
% Compute the argument for the Meijer G-function
argument = (2 * a * b * xi) ./ (sqrt(snrFso * beta^2));

% Compute the Meijer G-function
%G = MeijerG([ 1, eta^2 + 1], [eta^2, a, b, 0], argument);
G = MeijerG( an, ap, bm, bq, argument );

% Add the term to the BER summation
ber = ber(i) + wi * (eta^2 ./ (gamma(a) * gamma(b))) * G;
bert = prefactor * ber;

end

% Multiply by the prefactor


semilogy(snrFso_dB, bert, '-b', 'linewidth', 2);
xlabel('Average SNR [dB]');
ylabel('ABER');
% ylim([10^(-6) 1])