an implementation of the rate control algorithm developed by Atsushi Onoe More...

#include <onoe-wifi-manager.h>

Inheritance diagram for ns3::OnoeWifiManager:

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)

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)

Private Member Functions
virtual WifiRemoteStation *	DoCreateStation (void) const

virtual WifiMode	DoGetDataMode (WifiRemoteStation *station, uint32_t size)

virtual WifiMode	DoGetRtsMode (WifiRemoteStation *station)

virtual void	DoReportDataFailed (WifiRemoteStation *station)

virtual void	DoReportDataOk (WifiRemoteStation *station, double ackSnr, WifiMode ackMode, double dataSnr)

virtual void	DoReportFinalDataFailed (WifiRemoteStation *station)

virtual void	DoReportFinalRtsFailed (WifiRemoteStation *station)

virtual void	DoReportRtsFailed (WifiRemoteStation *station)

virtual void	DoReportRtsOk (WifiRemoteStation *station, double ctsSnr, WifiMode ctsMode, double rtsSnr)

virtual void	DoReportRxOk (WifiRemoteStation *station, double rxSnr, WifiMode txMode)

virtual bool	IsLowLatency (void) const

void	UpdateMode (OnoeWifiRemoteStation *station)

void	UpdateRetry (OnoeWifiRemoteStation *station)

Private Attributes
uint32_t	m_addCreditThreshold

uint32_t	m_raiseThreshold

Time	m_updatePeriod

Additional Inherited Members
Public Member Functions inherited from ns3::WifiRemoteStationManager
void	AddBasicMode (WifiMode mode)

void	AddSupportedMode (Mac48Address address, WifiMode mode)

WifiMode	GetAckMode (Mac48Address address, WifiMode dataMode)

WifiMode	GetBasicMode (uint32_t i) const

WifiMode	GetCtsMode (Mac48Address address, WifiMode rtsMode)

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

WifiMode	GetDefaultMode (void) const

uint32_t	GetFragmentationThreshold (void) const

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)

WifiRemoteStationInfo	GetInfo (Mac48Address address)

uint32_t	GetMaxSlrc (void) const

uint32_t	GetMaxSsrc (void) const

uint32_t	GetNBasicModes (void) const

WifiMode	GetNonUnicastMode (void) const

uint32_t	GetRtsCtsThreshold (void) const

WifiMode	GetRtsMode (Mac48Address address, const WifiMacHeader *header, Ptr< const Packet > packet)

bool	IsAssociated (Mac48Address address) const

bool	IsBrandNew (Mac48Address address) const

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

bool	IsWaitAssocTxOk (Mac48Address address) const

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)

void	RecordGotAssocTxFailed (Mac48Address address)

void	RecordGotAssocTxOk (Mac48Address address)

void	RecordWaitAssocTxOk (Mac48Address address)

void	ReportDataFailed (Mac48Address address, const WifiMacHeader *header)

void	ReportDataOk (Mac48Address address, const WifiMacHeader *header, double ackSnr, WifiMode ackMode, double dataSnr)

void	ReportFinalDataFailed (Mac48Address address, const WifiMacHeader *header)

void	ReportFinalRtsFailed (Mac48Address address, const WifiMacHeader *header)

void	ReportRtsFailed (Mac48Address address, const WifiMacHeader *header)

void	ReportRtsOk (Mac48Address address, const WifiMacHeader *header, double ctsSnr, WifiMode ctsMode, double rtsSnr)

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

void	Reset (void)

void	Reset (Mac48Address address)

void	SetFragmentationThreshold (uint32_t threshold)

void	SetMaxSlrc (uint32_t maxSlrc)

void	SetMaxSsrc (uint32_t maxSsrc)

void	SetRtsCtsThreshold (uint32_t threshold)

virtual void	SetupPhy (Ptr< WifiPhy > phy)

Public Member Functions inherited from ns3::Object
void	AggregateObject (Ptr< Object > other)

void	Dispose (void)

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)

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount (const SimpleRefCount &o)

uint32_t	GetReferenceCount (void) const

SimpleRefCount &	operator= (const SimpleRefCount &o)

void	Ref (void) const

void	Unref (void) const

Public Member Functions inherited from ns3::ObjectBase
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)

Protected Member Functions inherited from ns3::WifiRemoteStationManager
virtual void	DoDispose (void)

uint32_t	GetNSupported (const WifiRemoteStation *station) const

WifiMode	GetSupported (const WifiRemoteStation *station, uint32_t i) const

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

virtual void	DoInitialize (void)

virtual void	NotifyNewAggregate (void)

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)

Detailed Description

an implementation of the rate control algorithm developed by Atsushi Onoe

This algorithm is well known because it has been used as the default rate control algorithm for the madwifi driver. I am not aware of any publication or reference about this algorithm beyond the madwifi source code.

Config Paths

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

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

Attributes

UpdatePeriod: The interval between decisions about rate control changes
- Set with class: TimeValue
- Underlying type: Time
- Initial value: +1000000000.0ns
- Flags: construct write read
RaiseThreshold: Attempt to raise the rate if we hit that threshold
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 10
- Flags: construct write read
AddCreditThreshold: Add credit threshold
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 10
- 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

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 41 of file onoe-wifi-manager.h.

Member Function Documentation

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

privatevirtual

Returns: a new station data structure

Implements ns3::WifiRemoteStationManager.

Definition at line 72 of file onoe-wifi-manager.cc.

References ns3::Simulator::Now().

WifiMode ns3::OnoeWifiManager::DoGetDataMode	(	WifiRemoteStation *	station,
		uint32_t	size
	)

privatevirtual

Parameters

station	the station with which 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 219 of file onoe-wifi-manager.cc.

References NS_ASSERT, and UpdateMode().

WifiMode ns3::OnoeWifiManager::DoGetRtsMode ( WifiRemoteStation * station )

privatevirtual

Parameters

station the station with which 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 266 of file onoe-wifi-manager.cc.

References UpdateMode().

bool ns3::OnoeWifiManager::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 275 of file onoe-wifi-manager.cc.

void ns3::OnoeWifiManager::UpdateMode ( OnoeWifiRemoteStation * station )

private

The following 20 lines of code were copied from the Onoe rate control kernel module used in the madwifi driver.

Definition at line 137 of file onoe-wifi-manager.cc.

References ns3::Simulator::Now(), NS_ASSERT, and NS_LOG_DEBUG.

Referenced by DoGetDataMode(), and DoGetRtsMode().

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