Implements the pathloss model defined in 3GPP TR 37.885, Table 6.2.1-1 for the Urban scenario. More...

#include "three-gpp-v2v-propagation-loss-model.h"

Inheritance diagram for ns3::ThreeGppV2vUrbanPropagationLossModel:

Collaboration diagram for ns3::ThreeGppV2vUrbanPropagationLossModel:

Public Member Functions
	ThreeGppV2vUrbanPropagationLossModel ()
	Constructor. More...

	ThreeGppV2vUrbanPropagationLossModel (const ThreeGppV2vUrbanPropagationLossModel &)=delete

	~ThreeGppV2vUrbanPropagationLossModel () override
	Destructor. More...

ThreeGppV2vUrbanPropagationLossModel &	operator= (const ThreeGppV2vUrbanPropagationLossModel &)=delete

Public Member Functions inherited from ns3::ThreeGppPropagationLossModel
	ThreeGppPropagationLossModel ()
	Constructor. More...

	ThreeGppPropagationLossModel (const ThreeGppPropagationLossModel &)=delete

	~ThreeGppPropagationLossModel () override
	Destructor. More...

Ptr< ChannelConditionModel >	GetChannelConditionModel () const
	Returns the associated channel condition model. More...

double	GetFrequency () const
	Return the current central frequency. More...

bool	IsO2iLowPenetrationLoss (Ptr< const ChannelCondition > cond) const
	Return true if the O2I Building Penetration loss corresponds to a low loss condition. More...

ThreeGppPropagationLossModel &	operator= (const ThreeGppPropagationLossModel &)=delete

void	SetChannelConditionModel (Ptr< ChannelConditionModel > model)
	Set the channel condition model used to determine the channel state (e.g., the LOS/NLOS condition) More...

void	SetFrequency (double f)
	Set the central frequency of the model. More...

Public Member Functions inherited from ns3::PropagationLossModel
	PropagationLossModel ()

	PropagationLossModel (const PropagationLossModel &)=delete

	~PropagationLossModel () override

int64_t	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'. More...

double	CalcRxPower (double txPowerDbm, Ptr< MobilityModel > a, Ptr< MobilityModel > b) const
	Returns the Rx Power taking into account all the PropagationLossModel(s) chained to the current one. More...

Ptr< PropagationLossModel >	GetNext ()
	Gets the next PropagationLossModel in the chain of loss models that act on the signal. More...

PropagationLossModel &	operator= (const PropagationLossModel &)=delete

void	SetNext (Ptr< PropagationLossModel > next)
	Enables a chain of loss models to act on the signal. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

	~Object () override
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose ()
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator () const
	Get an iterator to the Objects aggregated to this one. More...

TypeId	GetInstanceTypeId () const override
	Get the most derived TypeId for this Object. More...

template<typename T >
Ptr< T >	GetObject () const
	Get a pointer to the requested aggregated Object. More...

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId. More...

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object. More...

void	Initialize ()
	Invoke DoInitialize on all Objects aggregated to this one. More...

bool	IsInitialized () const
	Check if the object has been initialized. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Default constructor. More...

	SimpleRefCount (const SimpleRefCount &o[[maybe_unused]])
	Copy constructor. More...

uint32_t	GetReferenceCount () const
	Get the reference count of the object. More...

SimpleRefCount &	operator= (const SimpleRefCount &o[[maybe_unused]])
	Assignment operator. More...

void	Ref () const
	Increment the reference count. More...

void	Unref () const
	Decrement the reference count. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising errors. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId ()
	Get the type ID. More...

Static Public Member Functions inherited from ns3::ThreeGppPropagationLossModel
static TypeId	GetTypeId ()
	Get the type ID. More...

Static Public Member Functions inherited from ns3::PropagationLossModel
static TypeId	GetTypeId ()
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId ()
	Register this type. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId ()
	Get the type ID. More...

Private Member Functions
int64_t	DoAssignStreams (int64_t stream) override
	Assign a fixed random variable stream number to the random variables used by this model. More...

double	GetAdditionalNlosvLoss (double distance3D, double hUt, double hBs) const
	Computes the additional loss due to an obstruction caused by a vehicle. More...

double	GetLossLos (double distance2D, double distance3D, double hUt, double hBs) const override
	Computes the pathloss between a and b considering that the line of sight is not obstructed. More...

double	GetLossNlos (double distance2D, double distance3D, double hUt, double hBs) const override
	Computes the pathloss between a and b considering that the line of sight is obstructed by a building. More...

double	GetLossNlosv (double distance2D, double distance3D, double hUt, double hBs) const override
	Computes the pathloss between a and b considering that the line of sight is obstructed by a vehicle. More...

double	GetO2iDistance2dIn () const override
	Returns the minimum of the two independently generated distances according to the uniform distribution between the minimum and the maximum value depending on the specific 3GPP scenario (UMa, UMi-Street Canyon, RMa), i.e., between 0 and 25 m for UMa and UMi-Street Canyon, and between 0 and 10 m for RMa. More...

double	GetShadowingCorrelationDistance (ChannelCondition::LosConditionValue cond) const override
	Returns the shadow fading correlation distance. More...

double	GetShadowingStd (Ptr< MobilityModel > a, Ptr< MobilityModel > b, ChannelCondition::LosConditionValue cond) const override
	Returns the shadow fading standard deviation. More...

Private Attributes
Ptr< LogNormalRandomVariable >	m_logNorVar
	log normal random variable More...

double	m_percType3Vehicles
	percentage of Type 3 vehicles in the scenario (i.e., trucks) More...

Ptr< UniformRandomVariable >	m_uniformVar
	uniform random variable More...

Additional Inherited Members
Protected Member Functions inherited from ns3::ThreeGppPropagationLossModel
void	DoDispose () override
	Destructor implementation. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoInitialize ()
	Initialize() implementation. More...

virtual void	NotifyNewAggregate ()
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted ()
	Notifier called once the ObjectBase is fully constructed. More...

Static Protected Member Functions inherited from ns3::ThreeGppPropagationLossModel
static double	Calculate2dDistance (Vector a, Vector b)
	Computes the 2D distance between two 3D vectors. More...

Protected Attributes inherited from ns3::ThreeGppPropagationLossModel
bool	m_buildingPenLossesEnabled
	enable/disable building penetration losses More...

Ptr< ChannelConditionModel >	m_channelConditionModel
	pointer to the channel condition model More...

bool	m_enforceRanges
	strictly enforce TR 38.901 parameter ranges More...

double	m_frequency
	operating frequency in Hz More...

Ptr< NormalRandomVariable >	m_normalO2iHighLossVar
	a normal random variable for the calculation of 02i high loss, see TR38.901 Table 7.4.3-2 More...

Ptr< NormalRandomVariable >	m_normalO2iLowLossVar
	a normal random variable for the calculation of 02i low loss, see TR38.901 Table 7.4.3-2 More...

Ptr< NormalRandomVariable >	m_normRandomVariable
	normal random variable More...

std::unordered_map< uint32_t, O2iLossMapItem >	m_o2iLossMap
	map to store the o2i Loss values More...

Ptr< UniformRandomVariable >	m_randomO2iVar1
	a uniform random variable for the calculation of the indoor loss, see TR38.901 Table 7.4.3-2 More...

Ptr< UniformRandomVariable >	m_randomO2iVar2
	a uniform random variable for the calculation of the indoor loss, see TR38.901 Table 7.4.3-2 More...

bool	m_shadowingEnabled
	enable/disable shadowing More...

std::unordered_map< uint32_t, ShadowingMapItem >	m_shadowingMap
	map to store the shadowing values More...

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid ()
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

Implements the pathloss model defined in 3GPP TR 37.885, Table 6.2.1-1 for the Urban scenario.

Definition at line 33 of file three-gpp-v2v-propagation-loss-model.h.

Constructor & Destructor Documentation

◆ ThreeGppV2vUrbanPropagationLossModel() [1/2]

ns3::ThreeGppV2vUrbanPropagationLossModel::ThreeGppV2vUrbanPropagationLossModel ( )

Constructor.

Definition at line 51 of file three-gpp-v2v-propagation-loss-model.cc.

References m_logNorVar, m_uniformVar, and NS_LOG_FUNCTION.

◆ ~ThreeGppV2vUrbanPropagationLossModel()

ns3::ThreeGppV2vUrbanPropagationLossModel::~ThreeGppV2vUrbanPropagationLossModel ( )

override

Destructor.

Definition at line 63 of file three-gpp-v2v-propagation-loss-model.cc.

References NS_LOG_FUNCTION.

◆ ThreeGppV2vUrbanPropagationLossModel() [2/2]

ns3::ThreeGppV2vUrbanPropagationLossModel::ThreeGppV2vUrbanPropagationLossModel ( const ThreeGppV2vUrbanPropagationLossModel & )

delete

Member Function Documentation

◆ DoAssignStreams()

int64_t ns3::ThreeGppV2vUrbanPropagationLossModel::DoAssignStreams ( int64_t stream )

overrideprivatevirtual

Assign a fixed random variable stream number to the random variables used by this model.

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

Parameters

stream first stream index to use

Returns: the number of stream indices assigned by this model

Reimplemented from ns3::ThreeGppPropagationLossModel.

Definition at line 233 of file three-gpp-v2v-propagation-loss-model.cc.

References m_logNorVar, ns3::ThreeGppPropagationLossModel::m_normRandomVariable, m_uniformVar, NS_LOG_FUNCTION, and ns3::RandomVariableStream::SetStream().

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◆ GetAdditionalNlosvLoss()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetAdditionalNlosvLoss	(	double	distance3D,
		double	hUt,
		double	hBs
	)		const

private

Computes the additional loss due to an obstruction caused by a vehicle.

Parameters

distance3D	the 3D distance between tx and rx in meters
hUt	the height of the UT in meters
hBs	the height of the BS in meters

Returns: pathloss value in dB

Definition at line 106 of file three-gpp-v2v-propagation-loss-model.cc.

References ns3::UniformRandomVariable::GetValue(), m_logNorVar, m_percType3Vehicles, m_uniformVar, max, min, and NS_LOG_FUNCTION.

Referenced by GetLossNlosv().

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◆ GetLossLos()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetLossLos	(	double	distance2D,
		double	distance3D,
		double	hUt,
		double	hBs
	)		const

overrideprivatevirtual

Computes the pathloss between a and b considering that the line of sight is not obstructed.

Parameters

distance2D	the 2D distance between tx and rx in meters
distance3D	the 3D distance between tx and rx in meters
hUt	the height of the UT in meters
hBs	the height of the BS in meters

Returns: pathloss value in dB

Implements ns3::ThreeGppPropagationLossModel.

Reimplemented in ns3::ThreeGppV2vHighwayPropagationLossModel.

Definition at line 69 of file three-gpp-v2v-propagation-loss-model.cc.

References ns3::ThreeGppPropagationLossModel::m_frequency, and NS_LOG_FUNCTION.

Referenced by GetLossNlosv().

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◆ GetLossNlos()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetLossNlos	(	double	distance2D,
		double	distance3D,
		double	hUt,
		double	hBs
	)		const

overrideprivatevirtual

Computes the pathloss between a and b considering that the line of sight is obstructed by a building.

Parameters

distance2D	the 2D distance between tx and rx in meters
distance3D	the 3D distance between tx and rx in meters
hUt	the height of the UT in meters
hBs	the height of the BS in meters

Returns: pathloss value in dB

Implements ns3::ThreeGppPropagationLossModel.

Definition at line 169 of file three-gpp-v2v-propagation-loss-model.cc.

References ns3::ThreeGppPropagationLossModel::m_frequency, and NS_LOG_FUNCTION.

◆ GetLossNlosv()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetLossNlosv	(	double	distance2D,
		double	distance3D,
		double	hUt,
		double	hBs
	)		const

overrideprivatevirtual

Computes the pathloss between a and b considering that the line of sight is obstructed by a vehicle.

Parameters

distance2D	the 2D distance between tx and rx in meters
distance3D	the 3D distance between tx and rx in meters
hUt	the height of the UT in meters
hBs	the height of the BS in meters

Returns: pathloss value in dB

Reimplemented from ns3::ThreeGppPropagationLossModel.

Definition at line 91 of file three-gpp-v2v-propagation-loss-model.cc.

References GetAdditionalNlosvLoss(), GetLossLos(), and NS_LOG_FUNCTION.

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◆ GetO2iDistance2dIn()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetO2iDistance2dIn ( ) const

overrideprivatevirtual

Returns the minimum of the two independently generated distances according to the uniform distribution between the minimum and the maximum value depending on the specific 3GPP scenario (UMa, UMi-Street Canyon, RMa), i.e., between 0 and 25 m for UMa and UMi-Street Canyon, and between 0 and 10 m for RMa.

According to 3GPP TR 38.901 this 2D−in distance shall be UT-specifically generated. 2D−in distance is used for the O2I penetration losses calculation according to 3GPP TR 38.901 7.4.3. See GetO2iLowPenetrationLoss/GetO2iHighPenetrationLoss functions.

TODO O2I car penetration loss (TR 38.901 7.4.3.2) not considered

Returns: Returns 02i 2D distance (in meters) used to calculate low/high losses.

Implements ns3::ThreeGppPropagationLossModel.

Definition at line 83 of file three-gpp-v2v-propagation-loss-model.cc.

References NS_LOG_WARN.

◆ GetShadowingCorrelationDistance()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetShadowingCorrelationDistance ( ChannelCondition::LosConditionValue cond ) const

overrideprivatevirtual

Returns the shadow fading correlation distance.

Parameters

cond	the LOS/NLOS channel condition

Returns: shadowing correlation distance in meters

Implements ns3::ThreeGppPropagationLossModel.

Definition at line 208 of file three-gpp-v2v-propagation-loss-model.cc.

References NS_FATAL_ERROR, and NS_LOG_FUNCTION.

◆ GetShadowingStd()

double ns3::ThreeGppV2vUrbanPropagationLossModel::GetShadowingStd	(	Ptr< MobilityModel >	a,
		Ptr< MobilityModel >	b,
		ChannelCondition::LosConditionValue	cond
	)		const