WifiDefaultProtectionManager is the default protection manager, which selects the protection method for a frame based on its size. More...

#include "wifi-default-protection-manager.h"

Inheritance diagram for ns3::WifiDefaultProtectionManager:

Collaboration diagram for ns3::WifiDefaultProtectionManager:

Public Member Functions
	WifiDefaultProtectionManager ()

	~WifiDefaultProtectionManager () override

std::unique_ptr< WifiProtection >	TryAddMpdu (Ptr< const WifiMpdu > mpdu, const WifiTxParameters &txParams) override
	Determine the protection method to use if the given MPDU is added to the current frame.

std::unique_ptr< WifiProtection >	TryAggregateMsdu (Ptr< const WifiMpdu > msdu, const WifiTxParameters &txParams) override
	Determine the protection method to use if the given MSDU is aggregated to the current frame.

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

	~WifiProtectionManager () override

void	SetLinkId (uint8_t linkId)
	Set the ID of the link this Protection Manager is associated with.

void	SetWifiMac (Ptr< WifiMac > mac)
	Set the MAC which is using this Protection Manager.

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.

void	UnidirectionalAggregateObject (Ptr< Object > other)
	Aggregate an Object to another Object.

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, bool permissive=false) 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.

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::WifiProtectionManager
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
virtual std::unique_ptr< WifiProtection >	GetPsduProtection (const WifiMacHeader &hdr, const WifiTxParameters &txParams) const
	Select the protection method for a single PSDU.

Protected Member Functions inherited from ns3::WifiProtectionManager
void	AddUserInfoToMuRts (CtrlTriggerHeader &muRts, MHz_u txWidth, const Mac48Address &receiver) const
	Add a User Info field to the given MU-RTS Trigger Frame to solicit a CTS from the station with the given MAC address.

void	DoDispose () override
	Destructor implementation.

Ptr< WifiRemoteStationManager >	GetWifiRemoteStationManager () const

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

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
virtual std::unique_ptr< WifiProtection >	TryAddMpduToMuPpdu (Ptr< const WifiMpdu > mpdu, const WifiTxParameters &txParams)
	Calculate the protection method to use if the given MPDU is added to the current DL MU PPDU (represented by the given TX parameters).

virtual std::unique_ptr< WifiProtection >	TryUlMuTransmission (Ptr< const WifiMpdu > mpdu, const WifiTxParameters &txParams)
	Calculate the protection method for the UL MU transmission solicited by the given Trigger Frame.

Private Attributes
bool	m_sendMuRts
	true for sending an MU-RTS to protect DL MU PPDUs

bool	m_singleRtsPerTxop
	true for using protection only once in a TXOP

Additional Inherited Members
Protected Attributes inherited from ns3::WifiProtectionManager
uint8_t	m_linkId
	ID of the link this Protection Manager is operating on.

Ptr< WifiMac >	m_mac
	MAC which is using this Protection Manager.

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

Detailed Description

WifiDefaultProtectionManager is the default protection manager, which selects the protection method for a frame based on its size.

Definition at line 27 of file wifi-default-protection-manager.h.

Constructor & Destructor Documentation

◆ WifiDefaultProtectionManager()

ns3::WifiDefaultProtectionManager::WifiDefaultProtectionManager ( )

Definition at line 55 of file wifi-default-protection-manager.cc.

References NS_LOG_FUNCTION.

◆ ~WifiDefaultProtectionManager()

ns3::WifiDefaultProtectionManager::~WifiDefaultProtectionManager ( )

override

Definition at line 60 of file wifi-default-protection-manager.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ GetPsduProtection()

std::unique_ptr< WifiProtection > ns3::WifiDefaultProtectionManager::GetPsduProtection	(	const WifiMacHeader &	hdr,
		const WifiTxParameters &	txParams ) const

protectedvirtual

Select the protection method for a single PSDU.

Parameters

hdr	the MAC header of the PSDU
txParams	the TX parameters describing the PSDU

Returns: the selected protection method

Definition at line 163 of file wifi-default-protection-manager.cc.

References ns3::DynamicCast(), ns3::WifiMacHeader::GetAddr1(), ns3::WifiTxVector::GetChannelWidth(), ns3::WifiMacHeader::GetFragmentNumber(), ns3::WifiProtectionManager::GetWifiRemoteStationManager(), ns3::WifiMacHeader::IsRetry(), ns3::WifiProtectionManager::m_linkId, ns3::WifiProtectionManager::m_mac, m_singleRtsPerTxop, ns3::WifiTxParameters::m_txVector, and NS_LOG_FUNCTION.

Referenced by TryAddMpdu(), and TryAggregateMsdu().

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◆ GetTypeId()

TypeId ns3::WifiDefaultProtectionManager::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 32 of file wifi-default-protection-manager.cc.

References m_sendMuRts, m_singleRtsPerTxop, ns3::MakeBooleanAccessor(), ns3::MakeBooleanChecker(), and ns3::TypeId::SetParent().

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◆ TryAddMpdu()

std::unique_ptr< WifiProtection > ns3::WifiDefaultProtectionManager::TryAddMpdu	(	Ptr< const WifiMpdu >	mpdu,
		const WifiTxParameters &	txParams )

overridevirtual

Determine the protection method to use if the given MPDU is added to the current frame.

Return a null pointer if the protection method is unchanged or the new protection method otherwise.

Parameters

mpdu	the MPDU to be added to the current frame
txParams	the current TX parameters for the current frame

Returns: a null pointer if the protection method is unchanged or the new protection method otherwise

Implements ns3::WifiProtectionManager.

Definition at line 66 of file wifi-default-protection-manager.cc.

References ns3::WifiProtection::CTS_TO_SELF, ns3::WifiTxParameters::GetPsduInfoMap(), GetPsduProtection(), ns3::WifiProtectionManager::GetWifiRemoteStationManager(), ns3::WifiTxVector::IsDlMu(), ns3::WifiTxVector::IsUlMu(), ns3::WifiTxParameters::m_protection, ns3::WifiTxParameters::m_txVector, ns3::WifiProtection::MU_RTS_CTS, ns3::WifiProtection::NONE, NS_ASSERT, NS_LOG_FUNCTION, ns3::WifiProtection::RTS_CTS, TryAddMpduToMuPpdu(), and TryUlMuTransmission().

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◆ TryAddMpduToMuPpdu()

std::unique_ptr< WifiProtection > ns3::WifiDefaultProtectionManager::TryAddMpduToMuPpdu	(	Ptr< const WifiMpdu >	mpdu,
		const WifiTxParameters &	txParams )

privatevirtual

Calculate the protection method to use if the given MPDU is added to the current DL MU PPDU (represented by the given TX parameters).

If the computed protection method is the same as the current one, a null pointer is returned. Otherwise, the computed protection method is returned. The TX width of the PPDU containing the MU-RTS is the same as the DL MU PPDU being protected. Each non-AP station is solicited to transmit a CTS occupying a bandwidth equal to the minimum between the TX width of the DL MU PPDU and the maximum channel width supported by the non-AP station.

Parameters

mpdu	the given MPDU
txParams	the TX parameters describing the current DL MU PPDU

Returns: the new protection method or a null pointer if the protection method is unchanged

Definition at line 221 of file wifi-default-protection-manager.cc.

References ns3::WifiProtectionManager::AddUserInfoToMuRts(), ns3::AP, ns3::WifiTxVector::GetChannelWidth(), ns3::ErpOfdmPhy::GetErpOfdmRate6Mbps(), ns3::WifiTxVector::GetModulationClass(), ns3::WifiTxParameters::GetPsduInfoMap(), ns3::WifiProtectionManager::GetWifiRemoteStationManager(), ns3::WifiTxVector::IsDlMu(), ns3::WifiTxParameters::LastAddedIsFirstMpdu(), ns3::WifiProtectionManager::m_linkId, ns3::WifiProtectionManager::m_mac, ns3::WifiTxParameters::m_protection, m_sendMuRts, m_singleRtsPerTxop, ns3::WifiTxParameters::m_txVector, ns3::WifiProtection::MU_RTS_CTS, ns3::MU_RTS_TRIGGER, ns3::WifiMuRtsCtsProtection::muRts, ns3::WifiMuRtsCtsProtection::muRtsTxVector, ns3::WifiProtection::NONE, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_FUNCTION, ns3::WifiTxVector::SetChannelWidth(), ns3::WifiTxVector::SetMode(), ns3::CtrlTriggerHeader::SetType(), ns3::CtrlTriggerHeader::SetUlBandwidth(), ns3::StaticCast(), ns3::WIFI_MOD_CLASS_DSSS, and ns3::WIFI_MOD_CLASS_HR_DSSS.

Referenced by TryAddMpdu().

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◆ TryAggregateMsdu()

std::unique_ptr< WifiProtection > ns3::WifiDefaultProtectionManager::TryAggregateMsdu	(	Ptr< const WifiMpdu >	msdu,
		const WifiTxParameters &	txParams )

overridevirtual

Determine the protection method to use if the given MSDU is aggregated to the current frame.

Return a null pointer if the protection method is unchanged or the new protection method otherwise.

Parameters

msdu	the MSDU to be aggregated to the current frame
txParams	the current TX parameters for the current frame

Returns: a null pointer if the protection method is unchanged or the new protection method otherwise

Implements ns3::WifiProtectionManager.

Definition at line 125 of file wifi-default-protection-manager.cc.

References ns3::WifiProtection::CTS_TO_SELF, ns3::WifiTxParameters::GetPsduInfoMap(), GetPsduProtection(), ns3::WifiTxVector::IsDlMu(), ns3::WifiTxVector::IsUlMu(), ns3::WifiTxParameters::m_protection, ns3::WifiTxParameters::m_txVector, ns3::WifiProtection::MU_RTS_CTS, ns3::WifiProtection::NONE, NS_ASSERT, NS_LOG_FUNCTION, and ns3::WifiProtection::RTS_CTS.

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◆ TryUlMuTransmission()

std::unique_ptr< WifiProtection > ns3::WifiDefaultProtectionManager::TryUlMuTransmission	(	Ptr< const WifiMpdu >	mpdu,
		const WifiTxParameters &	txParams )

privatevirtual

Calculate the protection method for the UL MU transmission solicited by the given Trigger Frame.

The TX width of the PPDU containing the MU-RTS is the same as the TB PPDUs being solicited by the given Trigger Frame. Each non-AP station is solicited to transmit a CTS occupying a bandwidth equal to the minimum between the TX width of the PPDU containing the MU-RTS and the maximum channel width supported by the non-AP station.

Parameters