GaussMarkovMobility

simple module

Uses a Gauss-Markov model to control the randomness in the movement. Totally random walk (Brownian motion) is obtained by setting alpha=0, while alpha=1 results a linear motion.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends

Name	Type	Description
MovingMobilityBase	simple module	Abstract base module for mobility models.

Parameters

Name	Type	Default value	Description
coordinateSystemModule	string	""	module path of the geographic coordinate system module
visualizeMobility	bool	true	false means this mobility module does no visualization
visualRepresentation	string	"^"	determines the module that is moved by this mobility
constraintAreaMinX	double	-1m/0	min x position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMinY	double	-1m/0	min y position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMinZ	double	-1m/0	min z position of the constraint area, unconstrained by default (negative infinity)
constraintAreaMaxX	double	1m/0	max x position of the constraint area, unconstrained by default (positive infinity)
constraintAreaMaxY	double	1m/0	max y position of the constraint area, unconstrained by default (positive infinity)
constraintAreaMaxZ	double	1m/0	max z position of the constraint area, unconstrained by default (positive infinity)
updateInterval	double	0.1s	the simulation time interval used to regularly signal mobility state changes and update the display
alpha	double	0.5	[0;1], 0 - brown motion, 1 - linear motion
speed	double
angle	double	uniform(0deg, 360deg)
variance	double
margin	int

Properties

Name	Value	Description
display	i=block/cogwheel
class	GaussMarkovMobility

Signals

Name	Type	Unit
mobilityStateChanged	inet::MobilityBase

Source code

//
// Uses a Gauss-Markov model to control the randomness in the movement.
// Totally random walk (Brownian motion) is obtained by setting alpha=0,
// while alpha=1 results a linear motion.
//
simple GaussMarkovMobility extends MovingMobilityBase
{
    parameters:
        double alpha = default(0.5); // [0;1], 0 - brown motion, 1 - linear motion
        double speed @unit(mps);
        double angle @unit(deg) = default(uniform(0deg, 360deg));
        double variance;
        int margin @unit(m);
        @class(GaussMarkovMobility);
}

File: src/inet/mobility/single/GaussMarkovMobility.ned