How to decide a node in an overlapped area to select which base station
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Cladio Andrea
il 15 Gen 2015
Commentato: Image Analyst
il 21 Apr 2017
I have attached the pic, i have 200 nodes in this scenario and randomly located base stations. In the overlapped area, i want the nodes to calculate the distance between their location and base stations and then decide the shortest path , How can i do that , any ideas? Thank you in advance
4 Commenti
Image Analyst
il 21 Apr 2017
Maira, try this:
% Create the cyan x's.
numNodes = 200;
nodeX = 200 * rand(1, numNodes);
nodeY = 40 * rand(1, numNodes);
% Plot them
plot(nodeX, nodeY, 'cx', 'MarkerSize', 7);
grid on;
axis equal;
xlabel('X', 'FontSize', 20);
ylabel('Y', 'FontSize', 20);
xlim([0, 200]);
ylim([0, 40]);
% Create the green spots.
numBases = 8;
baseX = 200 * rand(1, numBases);
baseY = 40 * rand(1, numBases);
hold on;
plot(baseX, baseY, 'g.', 'MarkerSize', 25);
% Create the dark blue circles.
numDarkBlueCircles = 23;
blueX = 200 * rand(1, numDarkBlueCircles);
blueY = 40 * rand(1, numDarkBlueCircles);
hold on;
plot(blueX, blueY, 'bo', 'MarkerSize', 7);
% Create the yellow circles.
centers = [baseX', baseY']
radii = 20 * ones(numBases, 1)
% Plot the yellow circles.
viscircles(centers, radii, 'Color', 'y', 'LineWidth', 2);
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Image Analyst
il 15 Gen 2015
Just use the Pythagorean theorem to calculate distances
distances = sqrt((thisX - baseStationXs).^2 + (thisY - baseStationsYs).^2);
% Find the closest one
[closestDistance, indexOfClosestBaseStation] = min(distances);
Not really sure what you mean by "shortest path" but that will give you the index of the base station that is closest to your "test" point.
1 Commento
Image Analyst
il 15 Gen 2015
For a discussion on shortest paths, see Steve's blog. http://blogs.mathworks.com/steve/2011/11/01/exploring-shortest-paths-part-1/
If you mean path, as in the Traveling Salesman Problem, then search the Answers forum or MATLAB Central for that or for "TSP".
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