Steady-state random waypoint mobility model. More...

#include <steady-state-random-waypoint-mobility-model.h>

Inheritance diagram for ns3::SteadyStateRandomWaypointMobilityModel:

Collaboration diagram for ns3::SteadyStateRandomWaypointMobilityModel:

Public Member Functions
	SteadyStateRandomWaypointMobilityModel ()
Public Member Functions inherited from ns3::MobilityModel
	MobilityModel ()
virtual	~MobilityModel ()=0
int64_t	AssignStreams (int64_t stream)
double	GetDistanceFrom (Ptr< const MobilityModel > position) const
Vector	GetPosition (void) const
double	GetRelativeSpeed (Ptr< const MobilityModel > other) const
Vector	GetVelocity (void) const
void	SetPosition (const Vector &position)
Public Member Functions inherited from ns3::Object
	Object ()
virtual	~Object ()
void	AggregateObject (Ptr< Object > other)
void	Dispose (void)
AggregateIterator	GetAggregateIterator (void) const
virtual TypeId	GetInstanceTypeId (void) const
template<typename T >
Ptr< T >	GetObject (void) const
template<typename T >
Ptr< T >	GetObject (TypeId tid) const
void	Start (void)
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	SimpleRefCount (const SimpleRefCount &o)
uint32_t	GetReferenceCount (void) const
SimpleRefCount &	operator= (const SimpleRefCount &o)
void	Ref (void) const
void	Unref (void) const
Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
void	GetAttribute (std::string name, AttributeValue &value) const
bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const
void	SetAttribute (std::string name, const AttributeValue &value)
bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions
static TypeId	GetTypeId (void)
	This method returns the TypeId associated to ns3::SteadyStateRandomWaypointMobilityModel.

Protected Member Functions
virtual void	DoStart (void)
Protected Member Functions inherited from ns3::MobilityModel
void	NotifyCourseChange (void) const
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
virtual void	DoDispose (void)
virtual void	NotifyNewAggregate (void)

Private Member Functions
void	BeginWalk (void)
virtual int64_t	DoAssignStreams (int64_t)
virtual Vector	DoGetPosition (void) const
virtual Vector	DoGetVelocity (void) const
virtual void	DoSetPosition (const Vector &position)
void	Start (void)
void	SteadyStateBeginWalk (const Vector &destination)
void	SteadyStateStart (void)

Private Attributes
bool	alreadyStarted
EventId	m_event
ConstantVelocityHelper	m_helper
double	m_maxPause
double	m_maxSpeed
double	m_maxX
double	m_maxY
double	m_minPause
double	m_minSpeed
double	m_minX
double	m_minY
Ptr< UniformRandomVariable >	m_pause
Ptr < RandomRectanglePositionAllocator >	m_position
Ptr< UniformRandomVariable >	m_speed
Ptr< UniformRandomVariable >	m_u_r
Ptr< UniformRandomVariable >	m_x
Ptr< UniformRandomVariable >	m_x1_r
Ptr< UniformRandomVariable >	m_x2_r
Ptr< UniformRandomVariable >	m_y
Ptr< UniformRandomVariable >	m_y1_r
Ptr< UniformRandomVariable >	m_y2_r

Detailed Description

Steady-state random waypoint mobility model.

This model based on random waypoint mobility (RWM) model for case when speed, pause and position are uniformly distributed random variables. The difference is that the initial values of this parameters are not from uniform distribution but from stationary distribution of RWM model. The implementation of this model is 2d-specific and with nonzero nodes speeds.

Based on NS-2 implementation by Toilers Research Group – Colorado School of Mines (http://toilers.mines.edu). The papers related to this code are: W. Navidi and T. Camp, Stationary Distributions for the Random Waypoint Mobility Model, IEEE Transactions on Mobile Computing, vol. 3, no. 1, pp. 99-108, January-March 2004. W. Navidi, T. Camp, and N. Bauer, Improving the Accuracy of Random Waypoint Simulations Through Steady-State Initialization, Proceedings of the 15th International Conference on Modeling and Simulation (MS '04), pp. 319-326, March 2004.

Definition at line 52 of file steady-state-random-waypoint-mobility-model.h.

Constructor & Destructor Documentation

ns3::SteadyStateRandomWaypointMobilityModel::SteadyStateRandomWaypointMobilityModel ( )

Definition at line 81 of file steady-state-random-waypoint-mobility-model.cc.

References m_pause, m_speed, m_u_r, m_x, m_x1_r, m_x2_r, m_y, m_y1_r, and m_y2_r.

Member Function Documentation

void ns3::SteadyStateRandomWaypointMobilityModel::BeginWalk ( void )

private

Definition at line 224 of file steady-state-random-waypoint-mobility-model.cc.

References ns3::CalculateDistance(), ns3::ConstantVelocityHelper::GetCurrentPosition(), ns3::RandomRectanglePositionAllocator::GetNext(), ns3::UniformRandomVariable::GetValue(), m_event, m_helper, m_maxX, m_maxY, m_minX, m_minY, m_position, m_speed, ns3::MobilityModel::NotifyCourseChange(), NS_ASSERT, ns3::Simulator::Schedule(), ns3::Seconds(), ns3::ConstantVelocityHelper::SetVelocity(), Start(), ns3::ConstantVelocityHelper::Unpause(), ns3::ConstantVelocityHelper::Update(), ns3::Vector3D::x, ns3::Vector3D::y, and ns3::Vector3D::z.

Referenced by Start(), and SteadyStateStart().

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int64_t ns3::SteadyStateRandomWaypointMobilityModel::DoAssignStreams ( int64_t stream )

privatevirtual

Definition at line 277 of file steady-state-random-waypoint-mobility-model.cc.

References ns3::RandomRectanglePositionAllocator::AssignStreams(), m_pause, m_position, m_speed, m_u_r, m_x, m_x1_r, m_x2_r, m_y, m_y1_r, m_y2_r, and ns3::RandomVariableStream::SetStream().

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Vector ns3::SteadyStateRandomWaypointMobilityModel::DoGetPosition ( void ) const

privatevirtual

Definition at line 256 of file steady-state-random-waypoint-mobility-model.cc.

References ns3::ConstantVelocityHelper::GetCurrentPosition(), m_helper, and ns3::ConstantVelocityHelper::Update().

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Vector ns3::SteadyStateRandomWaypointMobilityModel::DoGetVelocity ( void ) const

privatevirtual

Definition at line 272 of file steady-state-random-waypoint-mobility-model.cc.

References ns3::ConstantVelocityHelper::GetVelocity(), and m_helper.

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void ns3::SteadyStateRandomWaypointMobilityModel::DoSetPosition ( const Vector & position )

privatevirtual

Definition at line 262 of file steady-state-random-waypoint-mobility-model.cc.

References alreadyStarted, m_event, m_helper, ns3::Simulator::Remove(), ns3::Simulator::ScheduleNow(), ns3::ConstantVelocityHelper::SetPosition(), and Start().

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void ns3::SteadyStateRandomWaypointMobilityModel::DoStart ( void )

protectedvirtual

This method is called only once by Object::Start. If the user calls Object::Start multiple times, DoStart is called only the first time.

Subclasses are expected to override this method and chain up to their parent's implementation once they are done. It is safe to call GetObject and AggregateObject from within this method.

Reimplemented from ns3::Object.

Definition at line 96 of file steady-state-random-waypoint-mobility-model.cc.

References SteadyStateStart().

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TypeId ns3::SteadyStateRandomWaypointMobilityModel::GetTypeId ( void )

static

This method returns the TypeId associated to ns3::SteadyStateRandomWaypointMobilityModel.

This object is accessible through the following paths with Config::Set and Config::Connect:

/NodeList/[i]/$ns3::MobilityModel/$ns3::SteadyStateRandomWaypointMobilityModel

Attributes defined for this type:

MinSpeed: Minimum speed value, [m/s]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.3
- Flags: construct write read
MaxSpeed: Maximum speed value, [m/s]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.7
- Flags: construct write read
MinPause: Minimum pause value, [s]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0
- Flags: construct write read
MaxPause: Maximum pause value, [s]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0
- Flags: construct write read
MinX: Minimum X value of traveling region, [m]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1
- Flags: construct write read
MaxX: Maximum X value of traveling region, [m]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1
- Flags: construct write read
MinY: Minimum Y value of traveling region, [m]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1
- Flags: construct write read
MaxY: Maximum Y value of traveling region, [m]
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1
- Flags: construct write read

Attributes defined in parent class ns3::MobilityModel:

Position: The current position of the mobility model.
- Set with class: Vector3DValue
- Underlying type: Vector3D
- Flags: write read
Velocity: The current velocity of the mobility model.
- Set with class: Vector3DValue
- Underlying type: Vector3D
- Flags: read