Aggregator used to construct A-MPDUs. More...

#include "mpdu-aggregator.h"

Inheritance diagram for ns3::MpduAggregator:

Collaboration diagram for ns3::MpduAggregator:

Public Types
typedef std::list< std::pair< Ptr< Packet >, AmpduSubframeHeader > >	DeaggregatedMpdus
	A list of deaggregated packets and their A-MPDU subframe headers. More...

typedef std::list< std::pair< Ptr< Packet >, AmpduSubframeHeader > >::const_iterator	DeaggregatedMpdusCI
	A constant iterator for a list of deaggregated packets and their A-MPDU subframe headers. More...

Public Member Functions
	MpduAggregator ()

virtual	~MpduAggregator ()

void	AddHeaderAndPad (Ptr< Packet > packet, bool last, bool isSingleMpdu) const

bool	Aggregate (Ptr< const Packet > packet, Ptr< Packet > aggregatedPacket) const

void	AggregateSingleMpdu (Ptr< const Packet > packet, Ptr< Packet > aggregatedPacket) const

bool	CanBeAggregated (uint32_t packetSize, Ptr< Packet > aggregatedPacket, uint8_t blockAckSize) const

uint16_t	GetMaxAmpduSize (void) const
	Returns the maximum A-MPDU size in bytes. More...

void	SetMaxAmpduSize (uint16_t maxSize)
	Sets the maximum A-MPDU size in bytes. More...

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

virtual	~Object ()
	Destructor. More...

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

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

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

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

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

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

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

bool	IsInitialized (void) 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)
	Copy constructor. More...

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

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator. 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
	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 erros. 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 DeaggregatedMpdus	Deaggregate (Ptr< Packet > aggregatedPacket)
	Deaggregates an A-MPDU by removing the A-MPDU subframe header and padding. More...

static TypeId	GetTypeId (void)
	Get the type ID. More...

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

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

Private Member Functions
uint8_t	CalculatePadding (Ptr< const Packet > packet) const

Private Attributes
uint16_t	m_maxAmpduLength
	Maximum length in bytes of A-MPDUs. More...

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

virtual void	DoDispose (void)
	Destructor implementation. More...

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

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

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

Detailed Description

Aggregator used to construct A-MPDUs.

Introspection did not find any typical Config paths.

No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 32 bytes (on a 64-bit architecture).

Definition at line 36 of file mpdu-aggregator.h.

Member Typedef Documentation

typedef std::list<std::pair<Ptr<Packet>, AmpduSubframeHeader> > ns3::MpduAggregator::DeaggregatedMpdus

A list of deaggregated packets and their A-MPDU subframe headers.

Definition at line 42 of file mpdu-aggregator.h.

typedef std::list<std::pair<Ptr<Packet>, AmpduSubframeHeader> >::const_iterator ns3::MpduAggregator::DeaggregatedMpdusCI

A constant iterator for a list of deaggregated packets and their A-MPDU subframe headers.

Definition at line 46 of file mpdu-aggregator.h.

Constructor & Destructor Documentation

ns3::MpduAggregator::MpduAggregator ( )

Definition at line 42 of file mpdu-aggregator.cc.

ns3::MpduAggregator::~MpduAggregator ( )

virtual

Definition at line 46 of file mpdu-aggregator.cc.

Member Function Documentation

void ns3::MpduAggregator::AddHeaderAndPad	(	Ptr< Packet >	packet,
		bool	last,
		bool	isSingleMpdu
	)		const

Parameters

packet	the packet we want to insert into aggregatedPacket.
last	true if it is the last packet.
isSingleMpdu	true if it is a single MPDU

Adds A-MPDU subframe header and padding to each MPDU that is part of an A-MPDU before it is sent.

Definition at line 116 of file mpdu-aggregator.cc.

References ns3::Packet::AddAtEnd(), ns3::Packet::AddHeader(), CalculatePadding(), ns3::Packet::GetSize(), NS_LOG_FUNCTION, ns3::AmpduSubframeHeader::SetCrc(), ns3::AmpduSubframeHeader::SetEof(), ns3::AmpduSubframeHeader::SetLength(), and ns3::AmpduSubframeHeader::SetSig().

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bool ns3::MpduAggregator::Aggregate	(	Ptr< const Packet >	packet,
		Ptr< Packet >	aggregatedPacket
	)		const

Parameters

packet	Packet we have to insert into aggregatedPacket.
aggregatedPacket	Packet that will contain packet, if aggregation is possible.

Returns: true if packet can be aggregated to aggregatedPacket, false otherwise.

Adds packet to aggregatedPacket. In concrete aggregator's implementation is specified how and if packet can be added to aggregatedPacket.

Definition at line 63 of file mpdu-aggregator.cc.

References ns3::Packet::AddAtEnd(), ns3::Packet::AddHeader(), CalculatePadding(), ns3::Packet::Copy(), ns3::Packet::GetSize(), m_maxAmpduLength, NS_LOG_FUNCTION, ns3::AmpduSubframeHeader::SetCrc(), ns3::AmpduSubframeHeader::SetLength(), and ns3::AmpduSubframeHeader::SetSig().

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void ns3::MpduAggregator::AggregateSingleMpdu	(	Ptr< const Packet >	packet,
		Ptr< Packet >	aggregatedPacket
	)		const

Parameters

packet	the packet we want to insert into aggregatedPacket.
aggregatedPacket	packet that will contain the packet of size packetSize, if aggregation is possible.

This method performs a VHT/HE single MPDU aggregation.

Definition at line 92 of file mpdu-aggregator.cc.

References ns3::Packet::AddAtEnd(), ns3::Packet::AddHeader(), CalculatePadding(), ns3::Packet::Copy(), ns3::Packet::GetSize(), NS_LOG_FUNCTION, ns3::AmpduSubframeHeader::SetCrc(), ns3::AmpduSubframeHeader::SetEof(), ns3::AmpduSubframeHeader::SetLength(), and ns3::AmpduSubframeHeader::SetSig().

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uint8_t ns3::MpduAggregator::CalculatePadding ( Ptr< const Packet > packet ) const

private

Parameters

packet the Packet

Returns: padding that must be added to the end of an aggregated packet

Calculates how much padding must be added to the end of an aggregated packet, after that a new packet is added. Each A-MPDU subframe is padded so that its length is multiple of 4 octets.

Definition at line 161 of file mpdu-aggregator.cc.

References ns3::Packet::GetSize().

Referenced by AddHeaderAndPad(), Aggregate(), AggregateSingleMpdu(), and CanBeAggregated().

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bool ns3::MpduAggregator::CanBeAggregated	(	uint32_t	packetSize,
		Ptr< Packet >	aggregatedPacket,
		uint8_t	blockAckSize
	)		const

Parameters

packetSize	size of the packet we want to insert into aggregatedPacket.
aggregatedPacket	packet that will contain the packet of size packetSize, if aggregation is possible.
blockAckSize	size of the piggybacked block ack request