GroupMobPosition Class Reference

#include <group-mobility.h>

Inheritance diagram for GroupMobPosition:

[legend]Collaboration diagram for GroupMobPosition:

[legend]List of all members.

Public Member Functions
	GroupMobPosition ()
virtual	~GroupMobPosition ()
virtual double	getX ()
virtual double	getY ()
virtual double	getCharge ()
virtual int	command (int argc, const char *const *argv)
Private Member Functions
void	update (double now)
double	Gaussian ()
double	distance (Position *pos1, Position *pos2)
double	mirror_posx (double xnode, double xleader)
double	mirror_posy (double ynode, double yleader)
double	MobGaussian (double avrg, double sigma)
Private Attributes
double	xFieldWidth_
double	yFieldWidth_
	range of the x-axis of the field to be simulated
double	xprec_
	range of the y-axis of the field to be simulated
double	yprec_
double	speedMean_
double	sigmaSpeed_
	when it is setted to zero the node moves anyway
double	speedM_
double	speedS_
double	eta_
double	alpha_
double	charge_
unsigned long int	steps_
BoundType	bound_
double	updateTime_
UpdatePosTimer	updateTmr_
	Time between two update computation.
double	speed_
double	gammaOld_
	current value of the speed
double	memoryM_
	current value of the direction
double	memoryS_
double	thetaMax_
int	debug_
Position *	leader_
	define the level of verbosity (for debugging purposes)
Friends
class	UpdatePosTimer

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Detailed Description

This class implements a group mobility model based on nodes' attraction. Nodes can moves independently to each others, such as in a random pattern or considering a cohesion among users in the same group. Each gropu has to be a leader which moves with a totally random pattern and a set of members which move with two components: random one and attraction one (to mimic a random group movement)

See also:

NodeCore, Position, BMPosition, GMPosition

Definition at line 81 of file group-mobility.h.

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Constructor & Destructor Documentation

GroupMobPosition::GroupMobPosition

(

)

Constructor

Definition at line 53 of file group-mobility.cc.

References alpha_, charge_, debug_, eta_, memoryM_, memoryS_, sigmaSpeed_, speedM_, speedMean_, speedS_, thetaMax_, updateTime_, xFieldWidth_, and yFieldWidth_.

GroupMobPosition::~GroupMobPosition

(

)

[virtual]

Destructor

Definition at line 89 of file group-mobility.cc.

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Member Function Documentation

double GroupMobPosition::getX

(

)

[virtual]

Method that return the current projection of the node on the x-axis. If it's necessary (updating time ia expired), update the position values before returns it.

Reimplemented from Position.

Definition at line 157 of file group-mobility.cc.

References Position::x_.

Referenced by update().

double GroupMobPosition::getY

(

)

[virtual]

Method that return the current projection of the node on the y-axis. If it's necessary (updating time ia expired), update the position values before returns it.

Reimplemented from Position.

Definition at line 162 of file group-mobility.cc.

References Position::y_.

Referenced by update().

int GroupMobPosition::command	(	int	argc,
		const char *const *	argv
	)			[virtual]

TCL command intepreter

• bound <BoundType value>: set the behaviour ot the node when it reaches the edge of the simulation field

Moreover it inherits all the OTcl method of Position

Parameters:

	argc	number of arguments in argv
	argv	array of strings which are the comand parameters (Note that argv[0] is the name of the object)

Returns:

TCL_OK or TCL_ERROR whether the command has been dispatched succesfully or no

Reimplemented from Position.

Definition at line 94 of file group-mobility.cc.

References bound_, Position::command(), gammaOld_, leader_, memoryM_, speed_, speedMean_, steps_, updateTime_, and updateTmr_.

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void GroupMobPosition::update

(

double

now

)

[private]

Method that updates both the position coordinates as function of the number of states to be evaluated.

Definition at line 281 of file group-mobility.cc.

References alpha_, bound_, charge_, debug_, distance(), eta_, gammaOld_, Position::getX(), getX(), Position::getY(), getY(), leader_, memoryM_, memoryS_, mirror_posx(), mirror_posy(), MobGaussian(), sigmaSpeed_, speed_, speedM_, speedMean_, speedS_, steps_, thetaMax_, updateTime_, updateTmr_, Position::x_, xFieldWidth_, xprec_, Position::y_, yFieldWidth_, and yprec_.

Referenced by UpdatePosTimer::expire().

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double GroupMobPosition::Gaussian

(

)

[private]

Method that returns a value from a normal random Gaussian variable (zero mean, unitary viariance)

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Member Data Documentation

double GroupMobPosition::sigmaSpeed_ [private]

when it is setted to zero the node moves anyway

Defines the mean value of the speed

Definition at line 148 of file group-mobility.h.

Referenced by GroupMobPosition(), and update().

double GroupMobPosition::updateTime_ [private]

SPHERIC: return in the simulation field on the opposite side THOROIDAL: return in the centre of simulation field HARDWALL: the movement is stopped in the edge REBOUNCE: the node rebounce (i.e., the movement that should be outside the simulation field is mirrored inside)

Definition at line 161 of file group-mobility.h.

Referenced by command(), GroupMobPosition(), and update().

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The documentation for this class was generated from the following files:

• mobility/group-mobility.h
• mobility/group-mobility.cc

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