Simple SpectrumPhy implementation that averages the spectrum power density of incoming transmissions to produce a spectrogram. More...

#include "spectrum-analyzer.h"

Inheritance diagram for ns3::SpectrumAnalyzer:

Collaboration diagram for ns3::SpectrumAnalyzer:

Public Member Functions
	SpectrumAnalyzer ()

	~SpectrumAnalyzer () override

Ptr< Object >	GetAntenna () const override
	Get the AntennaModel used by this SpectrumPhy instance for transmission and/or reception.

Ptr< NetDevice >	GetDevice () const override
	Get the associated NetDevice instance.

Ptr< MobilityModel >	GetMobility () const override
	Get the associated MobilityModel instance.

Ptr< const SpectrumModel >	GetRxSpectrumModel () const override

void	SetAntenna (Ptr< AntennaModel > a)
	Set the AntennaModel to be used.

void	SetChannel (Ptr< SpectrumChannel > c) override
	Set the channel attached to this device.

void	SetDevice (Ptr< NetDevice > d) override
	Set the associated NetDevice instance.

void	SetMobility (Ptr< MobilityModel > m) override
	Set the mobility model associated with this device.

void	SetRxSpectrumModel (Ptr< SpectrumModel > m)
	Set the spectrum model used by the SpectrumAnalyzer to represent incoming signals.

virtual void	Start ()
	Start the spectrum analyzer.

void	StartRx (Ptr< SpectrumSignalParameters > params) override
	Notify the SpectrumPhy instance of an incoming signal.

virtual void	Stop ()
	Stop the spectrum analyzer.

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

	SpectrumPhy (const SpectrumPhy &)=delete

	~SpectrumPhy () override

virtual Ptr< Object >	GetAntenna () const =0
	Get the AntennaModel used by this SpectrumPhy instance for transmission and/or reception.

virtual Ptr< NetDevice >	GetDevice () const =0
	Get the associated NetDevice instance.

virtual Ptr< MobilityModel >	GetMobility () const =0
	Get the associated MobilityModel instance.

virtual Ptr< const SpectrumModel >	GetRxSpectrumModel () const =0

SpectrumPhy &	operator= (const SpectrumPhy &)=delete

virtual void	SetChannel (Ptr< SpectrumChannel > c)=0
	Set the channel attached to this device.

virtual void	SetDevice (Ptr< NetDevice > d)=0
	Set the associated NetDevice instance.

virtual void	SetMobility (Ptr< MobilityModel > m)=0
	Set the mobility model associated with this device.

virtual void	StartRx (Ptr< SpectrumSignalParameters > params)=0
	Notify the SpectrumPhy instance of an incoming signal.

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

	~Object () override
	Destructor.

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

void	Dispose ()
	Dispose of this Object.

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

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

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

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

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

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

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

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

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

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

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

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

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

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

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

virtual TypeId	GetInstanceTypeId () const =0
	Get the most derived TypeId for this Object.

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

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

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

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

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

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

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

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

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

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

Protected Member Functions
void	DoDispose () override
	Destructor implementation.

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

virtual void	DoDispose ()
	Destructor implementation.

virtual void	DoInitialize ()
	Initialize() implementation.

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

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

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

Private Member Functions
void	AddSignal (Ptr< const SpectrumValue > psd)
	Adds a signal to the data collected.

virtual void	GenerateReport ()
	Generates a report of the data collected so far.

void	SubtractSignal (Ptr< const SpectrumValue > psd)
	Removes a signal to the data collected.

void	UpdateEnergyReceivedSoFar ()
	Updates the data about the received Energy.

Private Attributes
bool	m_active
	True if the analyzer is active.

Ptr< AntennaModel >	m_antenna
	Pointer to the Antenna model.

TracedCallback< Ptr< const SpectrumValue > >	m_averagePowerSpectralDensityReportTrace
	TracedCallback - average power spectral density report.

Ptr< SpectrumChannel >	m_channel
	Pointer to the channel to be analyzed.

Ptr< SpectrumValue >	m_energySpectralDensity
	Energy spectral density.

Time	m_lastChangeTime
	When the last update happened.

Ptr< MobilityModel >	m_mobility
	Pointer to the mobility model.

Ptr< NetDevice >	m_netDevice
	Pointer to the NetDevice using this object.

double	m_noisePowerSpectralDensity
	Noise power spectral density.

Time	m_resolution
	Time resolution.

Ptr< SpectrumModel >	m_spectrumModel
	Spectrum model.

Ptr< SpectrumValue >	m_sumPowerSpectralDensity
	Sum of the received PSD.

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

Detailed Description

Simple SpectrumPhy implementation that averages the spectrum power density of incoming transmissions to produce a spectrogram.

Introspection did not find any typical Config paths.

This PHY model supports a single antenna model instance which is used for reception (this PHY model never transmits).

Attributes

NoisePowerSpectralDensity: The power spectral density of the measuring instrument noise, in Watt/Hz. Mostly useful to make spectrograms look more similar to those obtained by real devices. Defaults to the value for thermal noise at 300K.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 4.14e-21
- Flags: constructwriteread
Resolution: The length of the time interval over which the power spectral density of incoming signals is averaged
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +1e+06ns
- Flags: constructwriteread

TraceSources

AveragePowerSpectralDensityReport: Trace fired whenever a new value for the average Power Spectral Density is calculated
Callback signature: ns3::SpectrumValue::TracedCallback

Size of this type is 136 bytes (on a 64-bit architecture).

Definition at line 47 of file spectrum-analyzer.h.

Constructor & Destructor Documentation

◆ SpectrumAnalyzer()

ns3::SpectrumAnalyzer::SpectrumAnalyzer ( )

Definition at line 36 of file spectrum-analyzer.cc.

References NS_LOG_FUNCTION.

◆ ~SpectrumAnalyzer()

ns3::SpectrumAnalyzer::~SpectrumAnalyzer ( )

override

Definition at line 48 of file spectrum-analyzer.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ AddSignal()

void ns3::SpectrumAnalyzer::AddSignal ( Ptr< const SpectrumValue > psd )

private

Adds a signal to the data collected.

Parameters

psd	signal to add

Definition at line 158 of file spectrum-analyzer.cc.

References NS_LOG_FUNCTION, and UpdateEnergyReceivedSoFar().

Referenced by StartRx().

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◆ DoDispose()

void ns3::SpectrumAnalyzer::DoDispose ( )

overrideprotectedvirtual

Destructor implementation.

This method is called by Dispose() or by the Object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overridden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.

It is safe to call GetObject() from within this method.

Reimplemented from ns3::Object.

Definition at line 54 of file spectrum-analyzer.cc.

References ns3::Object::DoDispose(), m_channel, m_energySpectralDensity, m_mobility, m_netDevice, m_spectrumModel, m_sumPowerSpectralDensity, and NS_LOG_FUNCTION.

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◆ GenerateReport()

void ns3::SpectrumAnalyzer::GenerateReport ( )

privatevirtual

Generates a report of the data collected so far.

This function is called periodically.

Definition at line 190 of file spectrum-analyzer.cc.

References GenerateReport(), ns3::Time::GetSeconds(), ns3::SpectrumValue::GetSpectrumModel(), m_active, m_averagePowerSpectralDensityReportTrace, m_noisePowerSpectralDensity, m_resolution, m_sumPowerSpectralDensity, NS_LOG_FUNCTION, NS_LOG_INFO, ns3::Simulator::Schedule(), and UpdateEnergyReceivedSoFar().

Referenced by GenerateReport(), and Start().

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◆ GetAntenna()

Ptr< Object > ns3::SpectrumAnalyzer::GetAntenna ( ) const

overridevirtual

Get the AntennaModel used by this SpectrumPhy instance for transmission and/or reception.

Note that in general and depending on each module design, there can be multiple SpectrumPhy instances per NetDevice.

Returns: a Ptr to the AntennaModel used by this SpectrumPhy instance for transmission and/or reception

Implements ns3::SpectrumPhy.

Definition at line 137 of file spectrum-analyzer.cc.

References m_antenna.

◆ GetDevice()

Ptr< NetDevice > ns3::SpectrumAnalyzer::GetDevice ( ) const

overridevirtual

Get the associated NetDevice instance.

Returns: a Ptr to the associated NetDevice instance

Implements ns3::SpectrumPhy.

Definition at line 98 of file spectrum-analyzer.cc.

References m_netDevice.

◆ GetMobility()

Ptr< MobilityModel > ns3::SpectrumAnalyzer::GetMobility ( ) const

overridevirtual

Get the associated MobilityModel instance.

Returns: a Ptr to the associated MobilityModel instance

Implements ns3::SpectrumPhy.

Definition at line 104 of file spectrum-analyzer.cc.

References m_mobility.

◆ GetRxSpectrumModel()

Ptr< const SpectrumModel > ns3::SpectrumAnalyzer::GetRxSpectrumModel ( ) const

overridevirtual

Returns: returns the SpectrumModel that this SpectrumPhy expects to be used for all SpectrumValues that are passed to StartRx. If 0 is returned, it means that any model will be accepted.

Implements ns3::SpectrumPhy.

Definition at line 110 of file spectrum-analyzer.cc.

References m_spectrumModel.