pdmin_n0.m

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%********Report research simulation***********
%********simulate P(dmin>=n0)******************************
%On the minimum node degree and connectivity of a wireless multihop network%
%********1000*1000m^2,radio range r0,minimum node degree dmin************
%%%%%%%%%%%%%%%%%%%%%%%%Date 2006,6,13%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
A=10^6;
P=zeros(11);
i=1;
n0=2;
for n=0:100:1000
   for r0=0:20:200
       if n<=n0
           P(i)=0;
       else
         for N=0:n0-1 
            P(i)=((n/A)*pi*r0^2)^N/factorial(N)+P(i);
         end
         P(i)=(1-P(i)*exp(-(n/A)*pi*r0^2))^n;
       end
      i=i+1;
   end
end
x=0:100:1000;
y=0:20:200;
size(P)
[X,Y]=meshgrid(x,y);
%P=(1-exp(-(Y/A)*pi*X^2))^y;
figure(1)
surf(X,Y,P)
xlabel('nodes','color','b')
ylabel('range(in m)','color','b')
zlabel('prob(d_min>=2)','color','b')
grid on