a log distance propagation model. More...

#include <propagation-loss-model.h>

Inheritance diagram for ns3::LogDistancePropagationLossModel:

Collaboration diagram for ns3::LogDistancePropagationLossModel:

Public Member Functions
	LogDistancePropagationLossModel ()

double	GetPathLossExponent (void) const

void	SetPathLossExponent (double n)

void	SetReference (double referenceDistance, double referenceLoss)

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

virtual	~PropagationLossModel ()

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

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

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 ()

virtual	~Object ()

void	AggregateObject (Ptr< Object > other)

void	Dispose (void)
	Run the DoDispose methods of this object and all the objects aggregated to it. More...

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)
	This method calls the virtual DoInitialize method on all the objects aggregated to this object. More...

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

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

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment. More...

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

void	Unref (void) 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

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)

Static Public Member Functions inherited from ns3::PropagationLossModel
static TypeId	GetTypeId (void)

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

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)
	Noop. More...

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

Private Member Functions
	LogDistancePropagationLossModel (const LogDistancePropagationLossModel &o)

virtual int64_t	DoAssignStreams (int64_t stream)
	Subclasses must implement this; those not using random variables can return zero. More...

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

LogDistancePropagationLossModel &	operator= (const LogDistancePropagationLossModel &o)

Static Private Member Functions
static Ptr< PropagationLossModel >	CreateDefaultReference (void)

Private Attributes
double	m_exponent

double	m_referenceDistance

double	m_referenceLoss

Additional Inherited Members
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)

virtual void	DoDispose (void)
	This method is called by Object::Dispose or by the object's destructor, whichever comes first. More...

virtual void	DoInitialize (void)
	This method is called only once by Object::Initialize. More...

virtual void	NotifyNewAggregate (void)
	This method is invoked whenever two sets of objects are aggregated together. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)
	This method is invoked once all member attributes have been initialized. More...

Detailed Description

a log distance propagation model.

This model calculates the reception power with a so-called log-distance propagation model: $L = L_0 + 10 n log_{10}(\frac{d}{d_0})$

where:

: the path loss distance exponent
: reference distance (m)
: path loss at reference distance (dB)
: distance (m)
: path loss (dB)

When the path loss is requested at a distance smaller than the reference distance, the tx power is returned.

Config Paths

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

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

Attributes

Exponent: The exponent of the Path Loss propagation model
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 3
- Flags: construct write read
ReferenceDistance: The distance at which the reference loss is calculated (m)
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1
- Flags: construct write read
ReferenceLoss: The reference loss at reference distance (dB). (Default is Friis at 1m with 5.15 GHz)
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 46.6777
- Flags: construct write read