?? traffic.m
字號:
function traff = traffic(max_time)
%max_time = 50;
%Create matriks which reflects deterministic paket arrival time
%( 15 frames/second) assumed all 8 frames
%arrived/transmitted at the same time. Approximated frame length is 50
%byte.
%Later, matriks is sampled at 0.02 second
%-------------------------------------------------------------------------
%PARAMETERS
%-------------------------------------------------------------------------
mean_ps = 80*8; %mean packet size, 80 bytes = 200*8 bits per frame
std_ps = 0.1; %variation in packet size is around 10% of its mean
num_frame = 15; %number of frame per second, 1 frame
samp = 0.02;
j = 0; %time
k = 1; %index
while (j < max_time)
jmptimes(k) = j + 1 + (0.1 * randn() );
indproc(k) = (num_frame * mean_ps) + (mean_ps* std_ps * randn()) ;
j = jmptimes(k);
k = k+1;
end
%CONVERTING TO RLC BLOCK
%-------------------------------------------------------------------------
t = 0:samp:max_time;
traff = zeros(1,length(t));
i = 1;
for a = 1 : length(t)
if(t(a)>jmptimes(i))
traff(a) = indproc(i);
i = i + 1;
end
end
%stem(t,traff)
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