Modelize the propagation loss through a transmission medium. More...

#include <propagation-loss-model.h>

Inheritance diagram for ns3::PropagationLossModel:

Collaboration diagram for ns3::PropagationLossModel:

Public Member Functions
	PropagationLossModel ()
virtual	~PropagationLossModel ()
int64_t	AssignStreams (int64_t stream)
double	CalcRxPower (double txPowerDbm, Ptr< MobilityModel > a, Ptr< MobilityModel > b) const
Ptr< PropagationLossModel >	GetNext ()
	Gets the next PropagationLossModel in the chain of loss models that act on the signal.
void	SetNext (Ptr< PropagationLossModel > next)
	Enables a chain of loss models to act on the signal.
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	Initialize (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)

Private Member Functions
	PropagationLossModel (const PropagationLossModel &o)
virtual int64_t	DoAssignStreams (int64_t stream)=0
virtual double	DoCalcRxPower (double txPowerDbm, Ptr< MobilityModel > a, Ptr< MobilityModel > b) const =0
PropagationLossModel &	operator= (const PropagationLossModel &o)

Private Attributes
Ptr< PropagationLossModel >	m_next

Additional Inherited Members
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
virtual void	DoDispose (void)
virtual void	DoInitialize (void)
virtual void	NotifyNewAggregate (void)

Detailed Description

Modelize the propagation loss through a transmission medium.

Calculate the receive power (dbm) from a transmit power (dbm) and a mobility model for the source and destination positions.

Config Paths

ns3::PropagationLossModel is accessible through the following paths with Config::Set and Config::Connect:

/ChannelList/[i]/$ns3::WifiChannel/$ns3::YansWifiChannel/PropagationLossModel
/ChannelList/[i]/$ns3::YansWifiChannel/PropagationLossModel
/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Channel/$ns3::YansWifiChannel/PropagationLossModel

No Attributes are defined for this type.
No TraceSources are defined for this type.

Definition at line 49 of file propagation-loss-model.h.

Constructor & Destructor Documentation

ns3::PropagationLossModel::PropagationLossModel ( )

Definition at line 50 of file propagation-loss-model.cc.

ns3::PropagationLossModel::~PropagationLossModel ( )

virtual

Definition at line 55 of file propagation-loss-model.cc.

ns3::PropagationLossModel::PropagationLossModel ( const PropagationLossModel & o )

private

Member Function Documentation

int64_t ns3::PropagationLossModel::AssignStreams ( int64_t stream )

If this loss model uses objects of type RandomVariableStream, set the stream numbers to the integers starting with the offset 'stream'. Return the number of streams (possibly zero) that have been assigned. If there are PropagationLossModels chained together, this method will also assign streams to the downstream models.

Parameters

stream

Returns: the number of stream indices assigned by this model

Definition at line 85 of file propagation-loss-model.cc.

References AssignStreams(), DoAssignStreams(), and m_next.

Referenced by ns3::YansWifiChannel::AssignStreams(), and AssignStreams().

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double ns3::PropagationLossModel::CalcRxPower	(	double	txPowerDbm,
		Ptr< MobilityModel >	a,
		Ptr< MobilityModel >	b
	)		const

Parameters

txPowerDbm	current transmission power (in dBm)
a	the mobility model of the source
b	the mobility model of the destination

Returns: the reception power after adding/multiplying propagation loss (in dBm)

Definition at line 72 of file propagation-loss-model.cc.

References CalcRxPower(), DoCalcRxPower(), and m_next.

Referenced by CalcRxPower(), MatrixPropagationLossModelTestCase::DoRun(), RangePropagationLossModelTestCase::DoRun(), JakesPropagationExample::Next(), ns3::SimpleOfdmWimaxChannel::Send(), ns3::YansWifiChannel::Send(), ns3::SingleModelSpectrumChannel::StartTx(), ns3::MultiModelSpectrumChannel::StartTx(), TestDeterministic(), TestDeterministicByTime(), and TestProbabilistic().

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virtual int64_t ns3::PropagationLossModel::DoAssignStreams ( int64_t stream )

privatepure virtual

Subclasses must implement this; those not using random variables can return zero

Implemented in ns3::BuildingsPropagationLossModel.

Referenced by AssignStreams().

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virtual double ns3::PropagationLossModel::DoCalcRxPower	(	double	txPowerDbm,
		Ptr< MobilityModel >	a,
		Ptr< MobilityModel >	b
	)		const

privatepure virtual

Implemented in ns3::BuildingsPropagationLossModel.

Referenced by CalcRxPower().

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Ptr< PropagationLossModel > ns3::PropagationLossModel::GetNext ( void )

Gets the next PropagationLossModel in the chain of loss models that act on the signal.

Returns: The next PropagationLossModel in the chain

This method of chaining propagation loss models only works commutatively if the propagation loss of all models in the chain are independent of transmit power.

Definition at line 66 of file propagation-loss-model.cc.

References m_next.

TypeId ns3::PropagationLossModel::GetTypeId ( void )

static

Reimplemented from ns3::Object.

Definition at line 42 of file propagation-loss-model.cc.

References ns3::TypeId::SetParent().

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PropagationLossModel& ns3::PropagationLossModel::operator= ( const PropagationLossModel & o )

private

void ns3::PropagationLossModel::SetNext ( Ptr< PropagationLossModel > next )

Enables a chain of loss models to act on the signal.

Parameters

next	The next PropagationLossModel to add to the chain

This method of chaining propagation loss models only works commutatively if the propagation loss of all models in the chain are independent of transmit power.

Definition at line 60 of file propagation-loss-model.cc.

References m_next.

Referenced by ns3::SpectrumChannelHelper::AddPropagationLoss(), ns3::YansWifiChannelHelper::Create(), and main().

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