U can try this for 1000*1000 area with 400 no. of nodes and 40m between any 2 nodes.

>> clear

clf

n=400;

figure(1);

clf;

hold on;

L=1000;

R=400;

x = rand(1, 50000)*1000;

y = rand(1, 50000)*1000;

minAllowableDistance = 40;

numberOfPoints = n;

% Initialize first point.

xloc = x(1);

yloc = y(1);

% Try dropping down more points.

counter = 2;

for k = 2 : 50000

% Get a trial point.

thisX = x(k);

thisY = y(k);

% See how far point is away from existing keeper points.

distances = sqrt((thisX-xloc).^2 + (thisY - yloc).^2);

minDistance = min(distances);

if (minDistance >= minAllowableDistance)

xloc(counter) = thisX;

yloc(counter) = thisY;

counter = counter + 1;

end

if counter > numberOfPoints

break

end

end

scatter(xloc, yloc,'k', 'filled');

for i=1:n

text(xloc(i),yloc(i),num2str(i));

end

Coord=[xloc;yloc];

Coord=(Coord)';

Nseq=ones(1,n)*6;

cmatrix=randomGraphFromDegreeSequence(Nseq);

gplot(cmatrix,Coord,'-*')

>> gplot(cmatrix,Coord,'-*')

Dear researcher,

To deply sensor nodes in the area you can use a peredefined matrix with node cordinates.