ALOHA MAC Protocol, the simplest MAC protocol for wireless networks. More...

#include "uan-mac-aloha.h"

Inheritance diagram for ns3::UanMacAloha:

Collaboration diagram for ns3::UanMacAloha:

Public Member Functions
	UanMacAloha ()
	Default constructor.

	~UanMacAloha () override
	Dummy destructor, see DoDispose.

int64_t	AssignStreams (int64_t stream) override
	Assign a fixed random variable stream number to the random variables used by this model.

void	AttachPhy (Ptr< UanPhy > phy) override
	Attach PHY layer to this MAC.

void	Clear () override
	Clears all pointer references.

bool	Enqueue (Ptr< Packet > pkt, uint16_t protocolNumber, const Address &dest) override
	Enqueue packet to be transmitted.

void	SetForwardUpCb (Callback< void, Ptr< Packet >, uint16_t, const Mac8Address & > cb) override
	Set the callback to forward packets up to higher layers.

Public Member Functions inherited from ns3::UanMac
	UanMac ()
	Default constructor.

virtual Address	GetAddress ()
	Get the MAC Address.

virtual Address	GetBroadcast () const
	Get the broadcast address.

uint32_t	GetTxModeIndex () const
	Get the Tx mode index (Modulation type).

virtual void	SetAddress (Mac8Address addr)
	Set the address.

void	SetTxModeIndex (uint32_t txModeIndex)
	Set the Tx mode index (Modulation type).

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 ()
	Register this type.

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

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	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	RxPacketError (Ptr< Packet > pkt, double sinr)
	Packet received at lower layer in error.

void	RxPacketGood (Ptr< Packet > pkt, double sinr, UanTxMode txMode)
	Receive packet from lower layer (passed to PHY as callback).

Private Attributes
bool	m_cleared
	Flag when we've been cleared.

Callback< void, Ptr< Packet >, uint16_t, const Mac8Address & >	m_forUpCb
	Forwarding up callback.

Ptr< UanPhy >	m_phy
	PHY layer attached to this MAC.

Additional Inherited Members
Public Types inherited from ns3::UanMac
typedef void(*	PacketModeTracedCallback) (Ptr< const Packet > packet, UanTxMode mode)
	TracedCallback signature for packet reception/enqueue/dequeue events.

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

ALOHA MAC Protocol, the simplest MAC protocol for wireless networks.

Packets enqueued are immediately transmitted. This MAC attaches a UanHeaderCommon to outgoing packets for address information. (The type field is not used)

Definition at line 31 of file uan-mac-aloha.h.

Constructor & Destructor Documentation

◆ UanMacAloha()

ns3::UanMacAloha::UanMacAloha ( )

Default constructor.

Definition at line 26 of file uan-mac-aloha.cc.

◆ ~UanMacAloha()

ns3::UanMacAloha::~UanMacAloha ( )

override

Dummy destructor, see DoDispose.

Definition at line 32 of file uan-mac-aloha.cc.

Member Function Documentation

◆ AssignStreams()

int64_t ns3::UanMacAloha::AssignStreams ( int64_t stream )

overridevirtual

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

Return the number of streams (possibly zero) that have been assigned.

Parameters

stream First stream index to use.

Returns: The number of stream indices assigned by this model.

Implements ns3::UanMac.

Definition at line 130 of file uan-mac-aloha.cc.

References NS_LOG_FUNCTION.

◆ AttachPhy()

void ns3::UanMacAloha::AttachPhy ( Ptr< UanPhy > phy )

overridevirtual

Attach PHY layer to this MAC.

Some MACs may be designed to work with multiple PHY layers. Others may only work with one.

Parameters

phy	Phy layer to attach to this MAC.

Implements ns3::UanMac.

Definition at line 102 of file uan-mac-aloha.cc.

References m_phy, ns3::MakeCallback(), RxPacketError(), and RxPacketGood().

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◆ Clear()

void ns3::UanMacAloha::Clear ( )

overridevirtual

Clears all pointer references.

Implements ns3::UanMac.

Definition at line 37 of file uan-mac-aloha.cc.

References m_cleared, and m_phy.

Referenced by DoDispose().

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◆ DoDispose()

void ns3::UanMacAloha::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 52 of file uan-mac-aloha.cc.

References Clear(), and ns3::Object::DoDispose().

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◆ Enqueue()

bool ns3::UanMacAloha::Enqueue	(	Ptr< Packet >	pkt,
		uint16_t	protocolNumber,
		const Address &	dest )

overridevirtual

Enqueue packet to be transmitted.

Parameters

pkt	Packet to be transmitted.
dest	Destination address.
protocolNumber	The type of the packet.

Returns: True if packet was successfully enqueued.

Implements ns3::UanMac.

Definition at line 69 of file uan-mac-aloha.cc.

References ns3::Mac8Address::ConvertFrom(), ns3::UanMac::GetAddress(), ns3::UanMac::GetTxModeIndex(), m_phy, ns3::Now(), NS_LOG_DEBUG, ns3::Time::S, ns3::UanHeaderCommon::SetDest(), ns3::UanHeaderCommon::SetProtocolNumber(), ns3::UanHeaderCommon::SetSrc(), and ns3::UanHeaderCommon::SetType().

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◆ GetTypeId()

TypeId ns3::UanMacAloha::GetTypeId ( )

static

Register this type.

Returns: The TypeId.

Definition at line 59 of file uan-mac-aloha.cc.

References ns3::TypeId::SetParent().

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◆ RxPacketError()

void ns3::UanMacAloha::RxPacketError	(	Ptr< Packet >	pkt,
		double	sinr )

private

Packet received at lower layer in error.

Parameters

pkt	Packet received in error.
sinr	SINR of received packet.

Definition at line 123 of file uan-mac-aloha.cc.

References ns3::Mac8Address::ConvertFrom(), ns3::UanMac::GetAddress(), ns3::Simulator::Now(), and NS_LOG_DEBUG.

Referenced by AttachPhy().

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◆ RxPacketGood()

void ns3::UanMacAloha::RxPacketGood	(	Ptr< Packet >	pkt,
		double	sinr,
		UanTxMode	txMode )

private

Receive packet from lower layer (passed to PHY as callback).

Parameters

pkt	Packet being received.
sinr	SINR of received packet.
txMode	Mode of received packet.

Definition at line 110 of file uan-mac-aloha.cc.

References ns3::UanMac::GetAddress(), ns3::Mac8Address::GetBroadcast(), ns3::UanHeaderCommon::GetDest(), ns3::UanHeaderCommon::GetProtocolNumber(), ns3::UanHeaderCommon::GetSrc(), m_forUpCb, and NS_LOG_DEBUG.

Referenced by AttachPhy().

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◆ SetForwardUpCb()

void ns3::UanMacAloha::SetForwardUpCb ( Callback< void, Ptr< Packet >, uint16_t, const Mac8Address & > cb )

overridevirtual

Set the callback to forward packets up to higher layers.

Parameters

cb	The callback. packet The packet. address The source address.

Implements ns3::UanMac.

Definition at line 96 of file uan-mac-aloha.cc.

References m_forUpCb.

Member Data Documentation

◆ m_cleared

bool ns3::UanMacAloha::m_cleared

private

Flag when we've been cleared.

Definition at line 57 of file uan-mac-aloha.h.

Referenced by Clear().

◆ m_forUpCb

Callback<void, Ptr<Packet>, uint16_t, const Mac8Address&> ns3::UanMacAloha::m_forUpCb

private

Forwarding up callback.

Definition at line 55 of file uan-mac-aloha.h.

Referenced by RxPacketGood(), and SetForwardUpCb().

◆ m_phy

Ptr<UanPhy> ns3::UanMacAloha::m_phy

private

PHY layer attached to this MAC.

Definition at line 53 of file uan-mac-aloha.h.

Referenced by AttachPhy(), Clear(), and Enqueue().

The documentation for this class was generated from the following files:

src/uan/model/uan-mac-aloha.h
src/uan/model/uan-mac-aloha.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ UanMacAloha()

◆ ~UanMacAloha()

Member Function Documentation

◆ AssignStreams()

◆ AttachPhy()

◆ Clear()

◆ DoDispose()

◆ Enqueue()

◆ GetTypeId()

◆ RxPacketError()

◆ RxPacketGood()

◆ SetForwardUpCb()

Member Data Documentation

◆ m_cleared

◆ m_forUpCb

◆ m_phy