Mobility models for ad-hoc networks

Brownian motion

The '+' simbol denotes the gravity center.
The '.' points are the reference locations of the nodes.
The "0" node is the target point, it is not animated.

public static Pos move_random(int node) { // performs the calculations for the movement of a node
    Pos n=(Pos)loc.get(new Integer(node));
    int xi,yi;
    xi=((int)((Math.random()-0.5)*3.0)) + n.x;
    yi=((int)((Math.random()-0.5)*3.0)) + n.y;
    Pos p=new Pos(xi,yi);
    return p;
}

If you have not the correct behavior, please let your browser to totally reload the contents of this page. The complete source code of these applets is here.

Miguel Sanchez 1998