MATLAB: Please i want to calculate sum of E generated (i.e 1 to 5). i try it but the last E generated is showing as Etotal

energy of sensor nodes

xm=100; ym=100;
sink.x=0.5*xm; sink.y=0.5*ym;
n=5;
PL =20;
TX=4;
Efs=10;
for j=1:1:n
    S(j).xd=rand(1,1)*xm;
    S(j).yd=rand(1,1)*ym;
    distance=sqrt((S(j).xd-sink.x)^2 + (S(j).yd-sink.y)^2);
    E=PL*(TX+Efs*(sqrt(distance)^2));% this is a formula
    Etotal=sum(E)
end

Best Answer

Hi,
without having a close look I guess the last line should be:
 Etotal = Etotal + sum(E)
Also declare Etotal to be 0 before your for loop.
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