Robust Rate Adaptation AlgorithmThis is an implementation of RRAA as described in "Robust rate adaptation for 802.11 wireless networks" by "Starsky H. Y. Wong", "Hao Yang", "Songwu Lu", and, "Vaduvur Bharghavan" published in Mobicom 06. More...

#include <rraa-wifi-manager.h>

Inheritance diagram for ns3::RraaWifiManager:

Collaboration diagram for ns3::RraaWifiManager:

Classes
struct	ThresholdsItem

Public Member Functions
	RraaWifiManager ()

virtual	~RraaWifiManager ()

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

virtual	~WifiRemoteStationManager ()

void	AddBasicMcs (uint8_t mcs)
	Add a given Modulation and Coding Scheme (MCS) index to the set of basic MCS. More...

void	AddBasicMode (WifiMode mode)
	Invoked in a STA upon association to store the set of rates which belong to the BSSBasicRateSet of the associated AP and which are supported locally. More...

void	AddStationHtCapabilities (Mac48Address from, HtCapabilities htcapabilities)
	Records HT capabilities of the remote station. More...

void	AddSupportedMcs (Mac48Address address, uint8_t mcs)
	Record the MCS index supported by the station. More...

void	AddSupportedMode (Mac48Address address, WifiMode mode)
	Invoked in a STA or AP to store the set of modes supported by a destination which is also supported locally. More...

WifiTxVector	DoGetCtsToSelfTxVector (void)
	Since CTS-to-self parameters are not dependent on the station, it is implemented in wifiremote station manager. More...

WifiTxVector	GetAckTxVector (Mac48Address address, WifiMode dataMode)

uint8_t	GetBasicMcs (uint32_t i) const
	Return the MCS at the given list index. More...

WifiMode	GetBasicMode (uint32_t i) const
	Return a basic mode from the set of basic modes. More...

WifiTxVector	GetBlockAckTxVector (Mac48Address address, WifiMode dataMode)

WifiTxVector	GetCtsToSelfTxVector (const WifiMacHeader *header, Ptr< const Packet > packet)

WifiTxVector	GetCtsTxVector (Mac48Address address, WifiMode rtsMode)

WifiTxVector	GetDataTxVector (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet, uint32_t fullPacketSize)

uint8_t	GetDefaultMcs (void) const
	Return the default Modulation and Coding Scheme (MCS) index. More...

WifiMode	GetDefaultMode (void) const
	Return the default transmission mode. More...

uint8_t	GetDefaultTxPowerLevel (void) const

uint32_t	GetFragmentationThreshold (void) const
	Return the fragmentation threshold. More...

uint32_t	GetFragmentOffset (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet, uint32_t fragmentNumber)

uint32_t	GetFragmentSize (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet, uint32_t fragmentNumber)

bool	GetGreenfieldSupported (Mac48Address address) const
	Return whether the station supports Greenfield or not. More...

WifiRemoteStationInfo	GetInfo (Mac48Address address)

uint32_t	GetMaxSlrc (void) const
	Return the maximum STA long retry count (SLRC). More...

uint32_t	GetMaxSsrc (void) const
	Return the maximum STA short retry count (SSRC). More...

uint32_t	GetNBasicMcs (void) const
	Return the number of basic MCS index. More...

uint32_t	GetNBasicModes (void) const
	Return the number of basic modes we support. More...

WifiMode	GetNonUnicastMode (void) const
	Return a mode for non-unicast packets. More...

uint32_t	GetNumberOfTransmitAntennas (void)

uint32_t	GetRtsCtsThreshold (void) const
	Return the RTS threshold. More...

WifiTxVector	GetRtsTxVector (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

bool	HasHtSupported (void) const
	Return whether the device has HT capability support enabled. More...

bool	IsAssociated (Mac48Address address) const
	Return whether the station associated. More...

bool	IsBrandNew (Mac48Address address) const
	Return whether the station state is brand new. More...

bool	IsLastFragment (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet, uint32_t fragmentNumber)

bool	IsWaitAssocTxOk (Mac48Address address) const
	Return whether we are waiting for an ACK for the association response we sent. More...

bool	NeedCtsToSelf (WifiTxVector txVector)
	Return if we need to do Cts-to-self before sending a DATA. More...

bool	NeedDataRetransmission (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

bool	NeedFragmentation (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

bool	NeedRts (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

bool	NeedRtsRetransmission (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

void	PrepareForQueue (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet, uint32_t fullPacketSize)

void	RecordDisassociated (Mac48Address address)
	Records that the STA was disassociated. More...

void	RecordGotAssocTxFailed (Mac48Address address)
	Records that we missed an ACK for the association response we sent. More...

void	RecordGotAssocTxOk (Mac48Address address)
	Records that we got an ACK for the association response we sent. More...

void	RecordWaitAssocTxOk (Mac48Address address)
	Records that we are waiting for an ACK for the association response we sent. More...

void	ReportDataFailed (Mac48Address address, const WifiMacHeader *header)
	Should be invoked whenever the AckTimeout associated to a transmission attempt expires. More...

void	ReportDataOk (Mac48Address address, const WifiMacHeader *header, double ackSnr, WifiMode ackMode, double dataSnr)
	Should be invoked whenever we receive the Ack associated to a data packet we just sent. More...

void	ReportFinalDataFailed (Mac48Address address, const WifiMacHeader *header)
	Should be invoked after calling ReportDataFailed if NeedDataRetransmission returns false. More...

void	ReportFinalRtsFailed (Mac48Address address, const WifiMacHeader *header)
	Should be invoked after calling ReportRtsFailed if NeedRtsRetransmission returns false. More...

void	ReportRtsFailed (Mac48Address address, const WifiMacHeader *header)
	Should be invoked whenever the RtsTimeout associated to a transmission attempt expires. More...

void	ReportRtsOk (Mac48Address address, const WifiMacHeader *header, double ctsSnr, WifiMode ctsMode, double rtsSnr)
	Should be invoked whenever we receive the Cts associated to an RTS we just sent. More...

void	ReportRxOk (Mac48Address address, const WifiMacHeader *header, double rxSnr, WifiMode txMode)

void	Reset (void)
	Reset the station, invoked in a STA upon dis-association or in an AP upon reboot. More...

void	Reset (Mac48Address address)
	Invoked in an AP upon disassociation of a specific STA. More...

void	SetDefaultTxPowerLevel (uint8_t txPower)
	Set the default transmission power level. More...

void	SetFragmentationThreshold (uint32_t threshold)
	Sets a fragmentation threshold. More...

void	SetHtSupported (bool enable)
	Enable or disable HT capability support. More...

void	SetMaxSlrc (uint32_t maxSlrc)
	Sets the maximum STA long retry count (SLRC). More...

void	SetMaxSsrc (uint32_t maxSsrc)
	Sets the maximum STA short retry count (SSRC). More...

void	SetRtsCtsThreshold (uint32_t threshold)
	Sets the RTS threshold. More...

virtual void	SetupPhy (Ptr< WifiPhy > phy)
	Set up PHY associated with this device since it is the object that knows the full set of transmit rates that are supported. 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::WifiRemoteStationManager
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
void	ARts (RraaWifiRemoteStation *station)
	Activate the use of RTS for the given station if the conditions are met. More...

void	CheckTimeout (RraaWifiRemoteStation *station)
	Check if the counter should be resetted. More...

virtual WifiRemoteStation *	DoCreateStation (void) const

virtual WifiTxVector	DoGetDataTxVector (WifiRemoteStation *station, uint32_t size)

virtual WifiTxVector	DoGetRtsTxVector (WifiRemoteStation *station)

virtual bool	DoNeedRts (WifiRemoteStation *st, Ptr< const Packet > packet, bool normally)

virtual void	DoReportDataFailed (WifiRemoteStation *station)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportDataOk (WifiRemoteStation *station, double ackSnr, WifiMode ackMode, double dataSnr)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportFinalDataFailed (WifiRemoteStation *station)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportFinalRtsFailed (WifiRemoteStation *station)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportRtsFailed (WifiRemoteStation *station)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportRtsOk (WifiRemoteStation *station, double ctsSnr, WifiMode ctsMode, double rtsSnr)
	This method is a pure virtual method that must be implemented by the sub-class. More...

virtual void	DoReportRxOk (WifiRemoteStation *station, double rxSnr, WifiMode txMode)
	This method is a pure virtual method that must be implemented by the sub-class. More...

uint32_t	GetMaxRate (RraaWifiRemoteStation *station)
	Return the index for the maximum transmission rate for the given station. More...

uint32_t	GetMinRate (RraaWifiRemoteStation *station)
	Return the index for the minimum transmission rate for the given station. More...

struct ThresholdsItem	GetThresholds (WifiMode mode) const
	Get a threshold for the given mode. More...

struct ThresholdsItem	GetThresholds (RraaWifiRemoteStation *station, uint32_t rate) const
	Get a threshold for the given station and mode index. More...

virtual bool	IsLowLatency (void) const

void	ResetCountersBasic (RraaWifiRemoteStation *station)
	Reset the counters of the given station. More...

void	RunBasicAlgorithm (RraaWifiRemoteStation *station)
	Find an appropriate rate for the given station, using a basic algorithm. More...

Private Attributes
bool	m_basic

uint32_t	m_ewndfor12

uint32_t	m_ewndfor18

uint32_t	m_ewndfor24

uint32_t	m_ewndfor36

uint32_t	m_ewndfor48

uint32_t	m_ewndfor54

uint32_t	m_ewndfor6

uint32_t	m_ewndfor9

double	m_pmtlfor12

double	m_pmtlfor18

double	m_pmtlfor24

double	m_pmtlfor36

double	m_pmtlfor48

double	m_pmtlfor54

double	m_pmtlfor9

double	m_porifor12

double	m_porifor18

double	m_porifor24

double	m_porifor36

double	m_porifor48

double	m_porifor6

double	m_porifor9

Time	m_timeout

Additional Inherited Members
Protected Member Functions inherited from ns3::WifiRemoteStationManager
virtual void	DoDispose (void)
	This method is called by Object::Dispose or by the object's destructor, whichever comes first. More...

bool	GetGreenfield (const WifiRemoteStation *station) const
	Return whether the station supports Greenfield or not. More...

uint32_t	GetLongRetryCount (const WifiRemoteStation *station) const
	Return the long retry limit of the given station. More...

uint8_t	GetMcsSupported (const WifiRemoteStation *station, uint32_t i) const
	Return the MCS index supported by the specified station at the specified index. More...

uint32_t	GetNMcsSupported (const WifiRemoteStation *station) const
	Return the number of MCS supported by the given station. More...

uint32_t	GetNSupported (const WifiRemoteStation *station) const
	Return the number of modes supported by the given station. More...

uint32_t	GetNumberOfReceiveAntennas (const WifiRemoteStation *station) const
	Return the number of receive antenna the station has. More...

uint32_t	GetNumberOfTransmitAntennas (const WifiRemoteStation *station) const
	Return the number of transmit antenna the station has. More...

bool	GetShortGuardInterval (const WifiRemoteStation *station) const
	Return whether the given station supports short guard interval. More...

uint32_t	GetShortRetryCount (const WifiRemoteStation *station) const
	Return the short retry limit of the given station. More...

bool	GetStbc (const WifiRemoteStation *station) const
	Return whether the given station supports space-time block coding (STBC). More...

WifiMode	GetSupported (const WifiRemoteStation *station, uint32_t i) const
	Return whether mode associated with the specified station at the specified index. More...

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

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

Robust Rate Adaptation Algorithm

This is an implementation of RRAA as described in "Robust rate adaptation for 802.11 wireless networks" by "Starsky H. Y. Wong", "Hao Yang", "Songwu Lu", and, "Vaduvur Bharghavan" published in Mobicom 06.

Config Paths

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

/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/RemoteStationManager/$ns3::RraaWifiManager

Attributes

Basic: If true the RRAA-BASIC algorithm will be used, otherwise the RRAA wil be used
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: construct write read
Timeout: Timeout for the RRAA BASIC loss estimaton block (s)
- Set with class: ns3::TimeValue
- Underlying type: Time -9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +50000000.0ns
- Flags: construct write read
ewndFor54mbps: ewnd parameter for 54 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 40
- Flags: construct write read
ewndFor48mbps: ewnd parameter for 48 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 40
- Flags: construct write read
ewndFor36mbps: ewnd parameter for 36 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 40
- Flags: construct write read
ewndFor24mbps: ewnd parameter for 24 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 40
- Flags: construct write read
ewndFor18mbps: ewnd parameter for 18 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 20
- Flags: construct write read
ewndFor12mbps: ewnd parameter for 12 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 20
- Flags: construct write read
ewndFor9mbps: ewnd parameter for 9 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 10
- Flags: construct write read
ewndFor6mbps: ewnd parameter for 6 Mbs data mode
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 6
- Flags: construct write read
poriFor48mbps: Pori parameter for 48 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.047
- Flags: construct write read
poriFor36mbps: Pori parameter for 36 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.115
- Flags: construct write read
poriFor24mbps: Pori parameter for 24 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.1681
- Flags: construct write read
poriFor18mbps: Pori parameter for 18 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.1325
- Flags: construct write read
poriFor12mbps: Pori parameter for 12 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.1861
- Flags: construct write read
poriFor9mbps: Pori parameter for 9 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.1434
- Flags: construct write read
poriFor6mbps: Pori parameter for 6 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.5
- Flags: construct write read
pmtlFor54mbps: Pmtl parameter for 54 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.094
- Flags: construct write read
pmtlFor48mbps: Pmtl parameter for 48 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.23
- Flags: construct write read
pmtlFor36mbps: Pmtl parameter for 36 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.3363
- Flags: construct write read
pmtlFor24mbps: Pmtl parameter for 24 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.265
- Flags: construct write read
pmtlFor18mbps: Pmtl parameter for 18 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.3722
- Flags: construct write read
pmtlFor12mbps: Pmtl parameter for 12 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.2868
- Flags: construct write read
pmtlFor9mbps: Pmtl parameter for 9 Mbs data mode
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.3932
- Flags: construct write read

Attributes defined in parent class ns3::WifiRemoteStationManager

IsLowLatency: If true, we attempt to modelize a so-called low-latency device: a device where decisions about tx parameters can be made on a per-packet basis and feedback about the transmission of each packet is obtained before sending the next. Otherwise, we modelize a high-latency device, that is a device where we cannot update our decision about tx parameters after every packet transmission.
- Set with class: BooleanValue
- Underlying type: bool
- Flags: read
MaxSsrc: The maximum number of retransmission attempts for an RTS. This value will not have any effect on some rate control algorithms.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 7
- Flags: construct write read
MaxSlrc: The maximum number of retransmission attempts for a DATA packet. This value will not have any effect on some rate control algorithms.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 7
- Flags: construct write read
RtsCtsThreshold: If the size of the data packet + LLC header + MAC header + FCS trailer is bigger than this value, we use an RTS/CTS handshake before sending the data, as per IEEE Std. 802.11-2007, Section 9.2.6. This value will not have any effect on some rate control algorithms.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 2346
- Flags: construct write read
FragmentationThreshold: If the size of the data packet + LLC header + MAC header + FCS trailer is biggerthan this value, we fragment it such that the size of the fragments are equal or smaller than this value, as per IEEE Std. 802.11-2007, Section 9.4. This value will not have any effect on some rate control algorithms.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 2346
- Flags: construct write read
NonUnicastMode: Wifi mode used for non-unicast transmissions.
- Set with class: WifiModeValue
- Underlying type: WifiMode
- Initial value: Invalid-WifiMode
- Flags: construct write read
DefaultTxPowerLevel: Default power level to be used for transmissions. This is the power level that is used by all those WifiManagers that do notimplement TX power control.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:255
- Initial value: 0
- Flags: construct write read

No TraceSources are defined for this type.

TraceSources defined in parent class ns3::WifiRemoteStationManager

MacTxRtsFailed: The transmission of a RTS by the MAC layer has failed
MacTxDataFailed: The transmission of a data packet by the MAC layer has failed
MacTxFinalRtsFailed: The transmission of a RTS has exceeded the maximum number of attempts
MacTxFinalDataFailed: The transmission of a data packet has exceeded the maximum number of attempts

Definition at line 39 of file rraa-wifi-manager.h.

Constructor & Destructor Documentation

ns3::RraaWifiManager::RraaWifiManager ( )

Definition at line 189 of file rraa-wifi-manager.cc.

ns3::RraaWifiManager::~RraaWifiManager ( )

virtual

Definition at line 192 of file rraa-wifi-manager.cc.

Member Function Documentation

void ns3::RraaWifiManager::ARts ( RraaWifiRemoteStation * station )

private

Activate the use of RTS for the given station if the conditions are met.

Parameters

station

Definition at line 342 of file rraa-wifi-manager.cc.

References ns3::RraaWifiRemoteStation::m_lastFrameFail, ns3::RraaWifiRemoteStation::m_rtsCounter, ns3::RraaWifiRemoteStation::m_rtsOn, and ns3::RraaWifiRemoteStation::m_rtsWnd.

Referenced by DoNeedRts().

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void ns3::RraaWifiManager::CheckTimeout ( RraaWifiRemoteStation * station )

private

Check if the counter should be resetted.

Parameters

station

Definition at line 310 of file rraa-wifi-manager.cc.

References ns3::RraaWifiRemoteStation::m_counter, ns3::RraaWifiRemoteStation::m_lastReset, m_timeout, ns3::Simulator::Now(), and ResetCountersBasic().

Referenced by DoReportDataFailed(), and DoReportDataOk().

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WifiRemoteStation * ns3::RraaWifiManager::DoCreateStation ( void ) const

privatevirtual

Returns: a new station data structure

Implements ns3::WifiRemoteStationManager.

Definition at line 198 of file rraa-wifi-manager.cc.

References ns3::RraaWifiRemoteStation::m_initialized, ns3::RraaWifiRemoteStation::m_lastFrameFail, ns3::RraaWifiRemoteStation::m_rtsCounter, ns3::RraaWifiRemoteStation::m_rtsOn, and ns3::RraaWifiRemoteStation::m_rtsWnd.

WifiTxVector ns3::RraaWifiManager::DoGetDataTxVector	(	WifiRemoteStation *	station,
		uint32_t	size
	)

privatevirtual

Parameters

station	the station that we need to communicate
size	size of the packet or fragment we want to send

Returns: the transmission mode to use to send a packet to the station

Note: This method is called before sending a unicast packet or a fragment of a unicast packet to decide which transmission mode to use.

Implements ns3::WifiRemoteStationManager.

Definition at line 280 of file rraa-wifi-manager.cc.

References ns3::WifiRemoteStationManager::GetDefaultTxPowerLevel(), ns3::WifiRemoteStationManager::GetLongRetryCount(), ns3::WifiRemoteStationManager::GetNumberOfReceiveAntennas(), ns3::WifiRemoteStationManager::GetNumberOfTransmitAntennas(), ns3::WifiRemoteStationManager::GetShortGuardInterval(), ns3::WifiRemoteStationManager::GetStbc(), ns3::WifiRemoteStationManager::GetSupported(), ns3::RraaWifiRemoteStation::m_initialized, ns3::RraaWifiRemoteStation::m_rate, ns3::Min(), and ResetCountersBasic().

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WifiTxVector ns3::RraaWifiManager::DoGetRtsTxVector ( WifiRemoteStation * station )

privatevirtual

Parameters

station the station that we need to communicate

Returns: the transmission mode to use to send an rts to the station

Note: This method is called before sending an rts to a station to decide which transmission mode to use for the rts.

Implements ns3::WifiRemoteStationManager.

Definition at line 291 of file rraa-wifi-manager.cc.

References ns3::WifiRemoteStationManager::GetDefaultTxPowerLevel(), ns3::WifiRemoteStationManager::GetNumberOfReceiveAntennas(), ns3::WifiRemoteStationManager::GetNumberOfTransmitAntennas(), ns3::WifiRemoteStationManager::GetShortGuardInterval(), ns3::WifiRemoteStationManager::GetShortRetryCount(), ns3::WifiRemoteStationManager::GetStbc(), ns3::WifiRemoteStationManager::GetSupported(), and ns3::Min().

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bool ns3::RraaWifiManager::DoNeedRts	(	WifiRemoteStation *	station,
		Ptr< const Packet >	packet,
		bool	normally
	)

privatevirtual

Parameters

station	the station that we need to communicate
packet	the packet to send
normally	indicates whether the normal 802.11 rts enable mechanism would request that the rts is sent or not.

Returns: true if we want to use an RTS/CTS handshake for this packet before sending it, false otherwise.

Note: This method is called before a unicast packet is sent on the medium.

Reimplemented from ns3::WifiRemoteStationManager.

Definition at line 297 of file rraa-wifi-manager.cc.

References ARts(), m_basic, and ns3::RraaWifiRemoteStation::m_rtsOn.

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void ns3::RraaWifiManager::DoReportDataFailed ( WifiRemoteStation * station )

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station the station that we failed to send DATA

Implements ns3::WifiRemoteStationManager.

Definition at line 240 of file rraa-wifi-manager.cc.

References CheckTimeout(), ns3::RraaWifiRemoteStation::m_counter, ns3::RraaWifiRemoteStation::m_failed, ns3::RraaWifiRemoteStation::m_lastFrameFail, and RunBasicAlgorithm().

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void ns3::RraaWifiManager::DoReportDataOk	(	WifiRemoteStation *	station,
		double	ackSnr,
		WifiMode	ackMode,
		double	dataSnr
	)

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station	the station that we successfully sent RTS
ackSnr	the SNR of the ACK we received
ackMode	the WifiMode the receiver used to send the ACK
dataSnr	the SNR of the DATA we sent

Implements ns3::WifiRemoteStationManager.

Definition at line 261 of file rraa-wifi-manager.cc.

References CheckTimeout(), ns3::RraaWifiRemoteStation::m_counter, ns3::RraaWifiRemoteStation::m_lastFrameFail, and RunBasicAlgorithm().

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void ns3::RraaWifiManager::DoReportFinalDataFailed ( WifiRemoteStation * station )

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station the station that we failed to send DATA

Implements ns3::WifiRemoteStationManager.

Definition at line 275 of file rraa-wifi-manager.cc.

void ns3::RraaWifiManager::DoReportFinalRtsFailed ( WifiRemoteStation * station )

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station the station that we failed to send RTS

Implements ns3::WifiRemoteStationManager.

Definition at line 271 of file rraa-wifi-manager.cc.

void ns3::RraaWifiManager::DoReportRtsFailed ( WifiRemoteStation * station )

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station the station that we failed to send RTS

Implements ns3::WifiRemoteStationManager.

Definition at line 235 of file rraa-wifi-manager.cc.

void ns3::RraaWifiManager::DoReportRtsOk	(	WifiRemoteStation *	station,
		double	ctsSnr,
		WifiMode	ctsMode,
		double	rtsSnr
	)

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station	the station that we successfully sent RTS
ctsSnr	the SNR of the CTS we received
ctsMode	the WifiMode the receiver used to send the CTS
rtsSnr	the SNR of the RTS we sent

Implements ns3::WifiRemoteStationManager.

Definition at line 255 of file rraa-wifi-manager.cc.

References NS_LOG_DEBUG.

void ns3::RraaWifiManager::DoReportRxOk	(	WifiRemoteStation *	station,
		double	rxSnr,
		WifiMode	txMode
	)

privatevirtual

This method is a pure virtual method that must be implemented by the sub-class.

This allows different types of WifiRemoteStationManager to respond differently,

Parameters

station	the station that sent the DATA to us
rxSnr	the SNR of the DATA we received
txMode	the WifiMode the sender used to send the DATA

Implements ns3::WifiRemoteStationManager.

Definition at line 250 of file rraa-wifi-manager.cc.

uint32_t ns3::RraaWifiManager::GetMaxRate ( RraaWifiRemoteStation * station )

private

Return the index for the maximum transmission rate for the given station.

Parameters

station

Returns: the index for the maximum transmission rate

Definition at line 223 of file rraa-wifi-manager.cc.

References ns3::WifiRemoteStationManager::GetNSupported().

Referenced by ResetCountersBasic(), and RunBasicAlgorithm().

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uint32_t ns3::RraaWifiManager::GetMinRate ( RraaWifiRemoteStation * station )

private

Return the index for the minimum transmission rate for the given station.

Parameters

station

Returns: the index for the minimum transmission rate

Definition at line 228 of file rraa-wifi-manager.cc.

Referenced by RunBasicAlgorithm().

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struct RraaWifiManager::ThresholdsItem ns3::RraaWifiManager::GetThresholds ( WifiMode mode ) const

private

Get a threshold for the given mode.

Parameters

mode

Returns: threshold

Definition at line 376 of file rraa-wifi-manager.cc.

References m_ewndfor12, m_ewndfor18, m_ewndfor24, m_ewndfor36, m_ewndfor48, m_ewndfor54, m_ewndfor6, m_ewndfor9, m_pmtlfor12, m_pmtlfor18, m_pmtlfor24, m_pmtlfor36, m_pmtlfor48, m_pmtlfor54, m_pmtlfor9, m_porifor12, m_porifor18, m_porifor24, m_porifor36, m_porifor48, m_porifor6, m_porifor9, and NS_ASSERT_MSG.

Referenced by GetThresholds(), ResetCountersBasic(), and RunBasicAlgorithm().

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struct RraaWifiManager::ThresholdsItem ns3::RraaWifiManager::GetThresholds	(	RraaWifiRemoteStation *	station,
		uint32_t	rate
	)		const

private

Get a threshold for the given station and mode index.

Parameters

station
rate

Returns: threshold

Definition at line 368 of file rraa-wifi-manager.cc.

References ns3::WifiRemoteStationManager::GetSupported(), and GetThresholds().

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TypeId ns3::RraaWifiManager::GetTypeId ( void )

static

Definition at line 59 of file rraa-wifi-manager.cc.

References m_basic, m_ewndfor12, m_ewndfor18, m_ewndfor24, m_ewndfor36, m_ewndfor48, m_ewndfor54, m_ewndfor6, m_ewndfor9, m_pmtlfor12, m_pmtlfor18, m_pmtlfor24, m_pmtlfor36, m_pmtlfor48, m_pmtlfor54, m_pmtlfor9, m_porifor12, m_porifor18, m_porifor24, m_porifor36, m_porifor48, m_porifor6, m_porifor9, m_timeout, ns3::MakeTimeChecker(), and ns3::TypeId::SetParent().

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bool ns3::RraaWifiManager::IsLowLatency ( void ) const

privatevirtual

Returns: whether this manager is a manager designed to work in low-latency environments.

Note: In this context, low vs high latency is defined in IEEE 802.11 Rate Adaptation: A Practical Approach, by M. Lacage, M.H. Manshaei, and T. Turletti.

Implements ns3::WifiRemoteStationManager.

Definition at line 466 of file rraa-wifi-manager.cc.

void ns3::RraaWifiManager::ResetCountersBasic ( RraaWifiRemoteStation * station )

private

Reset the counters of the given station.

Parameters

station

Definition at line 210 of file rraa-wifi-manager.cc.

References ns3::RraaWifiManager::ThresholdsItem::ewnd, GetMaxRate(), GetThresholds(), ns3::RraaWifiRemoteStation::m_counter, ns3::RraaWifiRemoteStation::m_failed, ns3::RraaWifiRemoteStation::m_initialized, ns3::RraaWifiRemoteStation::m_lastReset, ns3::RraaWifiRemoteStation::m_rate, and ns3::Simulator::Now().

Referenced by CheckTimeout(), DoGetDataTxVector(), and RunBasicAlgorithm().

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