This section documents the API of the ns-3 Wifi module. More...

Classes
class	ns3::AarfcdWifiManager
	an implementation of the AARF-CD algorithmThis algorithm was first described in "Efficient Collision Detection for Auto Rate Fallback Algorithm". More...

class	ns3::AarfWifiManager
	AARF Rate control algorithmThis class implements the AARF rate control algorithm which was initially described in IEEE 802.11 Rate Adaptation: A Practical Approach, by M. More...

union	ns3::WifiActionHeader::ActionValue
	typedef for union of different ActionValues More...

class	ns3::AdhocWifiMac

class	ns3::AmpduSubframeHeader
	Introspection did not find any typical Config paths. More...

class	ns3::AmpduTag
	The aim of the AmpduTag is to provide means for a MAC to specify that a packet includes A-MPDU since this is done in HT-SIG and there is no HT-SIG representation in ns-3. More...

class	ns3::AmrrWifiManager
	AMRR Rate control algorithmThis class implements the AMRR rate control algorithm which was initially described in IEEE 802.11 Rate Adaptation: A Practical Approach, by M. More...

class	ns3::AmsduSubframeHeader
	Introspection did not find any typical Config paths. More...

class	ns3::AparfWifiManager
	APARF Power and rate control algorithm. More...

class	ns3::ApWifiMac
	Wi-Fi AP state machineHandle association, dis-association and authentication, of STAs within an infrastructure BSS. More...

class	ns3::ArfWifiManager
	ARF Rate control algorithm. More...

struct	ns3::Bar
	Block Ack Request. More...

class	ns3::BlockAckAgreement
	Maintains information for a block ack agreement. More...

class	ns3::BlockAckCache

class	ns3::BlockAckManager
	Manages all block ack agreements for an originator station. More...

class	ns3::CapabilityInformation
	Capability information. More...

class	ns3::CaraWifiManager
	implement the CARA rate control algorithmImplement the CARA algorithm from: J. More...

class	ns3::ConstantRateWifiManager
	use constant rates for data and RTS transmissions More...

class	ns3::CtrlBAckRequestHeader
	Headers for Block ack request. More...

class	ns3::CtrlBAckResponseHeader
	Headers for Block ack response. More...

class	ns3::DcaTxop
	handle packet fragmentation and retransmissions. More...

class	ns3::Dcf
	Introspection did not find any typical Config paths. More...

class	ns3::DcfManager
	Manage a set of ns3::DcfStateHandle a set of independent ns3::DcfState, each of which represents a single DCF within a MAC stack. More...

class	ns3::DcfState
	keep track of the state needed for a single DCF function. More...

class	ns3::DsssErrorRateModel
	an implementation of DSSS error rate modelThe 802.11b modulations: More...

class	ns3::DsssParameterSet
	The DSSS Parameter SetThis class knows how to serialise and deserialise the DSSS Parameter Set. More...

class	ns3::EdcaParameterSet
	The EDCA Parameter SetThis class knows how to serialise and deserialise the EDCA Parameter Set. More...

class	ns3::EdcaTxopN
	This queue contains packets for a particular access class. More...

class	ns3::ErpInformation
	The ErpInformation Information ElementThis class knows how to serialise and deserialise the ErpInformation Information Element. More...

class	ns3::ErrorRateModel
	the interface for Wifi's error models More...

class	ns3::InterferenceHelper::Event
	Signal event for a packet. More...

class	ns3::ExtendedSupportedRatesIE
	The Extended Supported Rates Information ElementThis class knows how to serialise and deserialise the Extended Supported Rates Element that holds (non-HT) rates beyond the 8 that the original Supported Rates element can carry. More...

class	ns3::HtCapabilities
	The HT Capabilities Information ElementThis class knows how to serialise and deserialise the HT Capabilities Information Element. More...

class	ns3::HtOperations
	The HT Operations Information ElementThis class knows how to serialise and deserialise the HT Operations Information Element. More...

class	ns3::IdealWifiManager
	Ideal rate control algorithmThis class implements an 'ideal' rate control algorithm similar to RBAR in spirit (see A rate-adaptive MAC protocol for multihop wireless networks by G. More...

class	ns3::InterferenceHelper
	handles interference calculations More...

struct	ns3::WifiMacQueue::Item
	A struct that holds information about a packet for putting in a packet queue. More...

struct	ns3::MacLow::Item
	A struct for packet, Wifi header, and timestamp. More...

struct	ns3::BlockAckManager::Item
	A struct for packet, Wifi header, and timestamp. More...

class	ns3::MacLow
	handle RTS/CTS/DATA/ACK transactions. More...

class	ns3::MacLowAggregationCapableTransmissionListener
	listen for block ack events. More...

class	ns3::MacLowDcfListener
	listen to NAV eventsThis class is typically connected to an instance of ns3::Dcf and calls to its methods are forwards to the corresponding ns3::Dcf methods. More...

class	ns3::MacLowTransmissionListener
	listen to events coming from ns3::MacLow. More...

class	ns3::MacLowTransmissionParameters
	control how a packet is transmitted. More...

class	ns3::MacRxMiddle
	This class handles duplicate detection and recomposition of fragments. More...

class	ns3::MacTxMiddle
	Handles sequence numbering of IEEE 802.11 data frames. More...

class	ns3::MgtAddBaRequestHeader
	Implement the header for management frames of type add block ack request. More...

class	ns3::MgtAddBaResponseHeader
	Implement the header for management frames of type add block ack response. More...

class	ns3::MgtAssocRequestHeader
	Implement the header for management frames of type association request. More...

class	ns3::MgtAssocResponseHeader
	Implement the header for management frames of type association response. More...

class	ns3::MgtBeaconHeader
	Implement the header for management frames of type beacon. More...

class	ns3::MgtDelBaHeader
	Implement the header for management frames of type del block ack. More...

class	ns3::MgtProbeRequestHeader
	Implement the header for management frames of type probe request. More...

class	ns3::MgtProbeResponseHeader
	Implement the header for management frames of type probe response. More...

class	ns3::MinstrelHtWifiManager
	Implementation of Minstrel HT Rate Control AlgorithmMinstrel-HT is a rate adaptation mechanism for the 802.11n/ac standard based on Minstrel, and is based on the approach of probing the channel to dynamically learn about working rates that can be supported. More...

class	ns3::MinstrelWifiManager
	Implementation of Minstrel Rate Control AlgorithmMinstrel is a rate control algorithm implemented in MadWifi and Linux. More...

class	ns3::MpduAggregator
	Abstract class that concrete mpdu aggregators have to implement. More...

class	ns3::MpduStandardAggregator
	Standard MPDU aggregator. More...

class	ns3::MsduAggregator
	Abstract class that concrete msdu aggregators have to implement. More...

class	ns3::MsduStandardAggregator
	Standard MSDU aggregator. More...

class	ns3::InterferenceHelper::NiChange
	Noise and Interference (thus Ni) event. More...

class	ns3::NistErrorRateModel
	A model for the error rate for different modulations. More...

class	ns3::OnoeWifiManager
	an implementation of the rate control algorithm developed by Atsushi Onoe More...

class	ns3::OriginatorBlockAckAgreement
	Maintains the state and information about transmitted MPDUs with ack policy block ack for an originator station. More...

class	ns3::ParfWifiManager
	PARF Rate control algorithm. More...

class	ns3::RegularWifiMac
	base class for all MAC-level wifi objects. More...

class	ns3::RraaWifiManager
	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...

struct	ns3::InterferenceHelper::SnrPer
	A struct for both SNR and PER. More...

class	ns3::SpectrumWifiPhy
	802.11 PHY layer modelThis PHY implements a spectrum-aware enhancement of the 802.11 SpectrumWifiPhy model. More...

class	ns3::Ssid
	The IEEE 802.11 SSID Information Element. More...

class	ns3::StaWifiMac
	The Wifi MAC high model for a non-AP STA in a BSS. More...

class	ns3::SupportedRates
	The Supported Rates Information ElementThis class knows how to serialise and deserialise the Supported Rates Element that holds the first 8 (non-HT) supported rates. More...

struct	ns3::RraaWifiManager::ThresholdsItem

class	ns3::VhtCapabilities
	The IEEE 802.11ac VHT Capabilities. More...

class	ns3::WifiActionHeader
	See IEEE 802.11 chapter 7.3.1.11 Header format: \| category: 1 \| action value: 1 \|. More...

class	ns3::WifiChannel
	Wifi Channel interface specificationThis class works in tandem with the ns3::WifiPhy class. More...

class	ns3::WifiInformationElement
	Information element, as defined in 802.11-2007 standardThe IEEE 802.11 standard includes the notion of Information Elements, which are encodings of management information to be communicated between STAs in the payload of various frames of type Management. More...

class	ns3::WifiInformationElementVector
	Information element vectorImplements a vector of WifiInformationElements. More...

class	ns3::WifiMac
	base class for all MAC-level wifi objects. More...

class	ns3::WifiMacHeader
	Implements the IEEE 802.11 MAC header. More...

class	ns3::WifiMacQueue
	This queue implements the timeout procedure described in (Section 9.19.2.6 "Retransmit procedures" paragraph 6; IEEE 802.11-2012). More...

class	ns3::WifiMacTrailer
	Implements the IEEE 802.11 MAC trailer. More...

class	ns3::WifiMode
	represent a single transmission modeA WifiMode is implemented by a single integer which is used to lookup in a global array the characteristics of the associated transmission mode. More...

class	ns3::WifiNetDevice
	Hold together all Wifi-related objects. More...

class	ns3::WifiPhy
	802.11 PHY layer model More...

class	ns3::WifiPhyStateHelper
	This objects implements the PHY state machine of the Wifi device. More...

class	ns3::WifiPhyTag
	Tag for WifiTxVector and WifiPreamble information to be embedded in outgoing transmissions as a PacketTag. More...

class	ns3::WifiRemoteStationManager
	hold a list of per-remote-station state. More...

class	ns3::WifiSpectrumPhyInterface
	This class is an adaptor between class SpectrumWifiPhy (which inherits from WifiPhy) and class SpectrumChannel (which expects objects derived from class SpectrumPhy to be connected to it). More...

struct	ns3::WifiSpectrumSignalParameters
	Signal parameters for wifi. More...

class	ns3::YansErrorRateModel
	Model the error rate for different modulations. More...

class	ns3::YansWifiChannel
	A Yans wifi channelThis wifi channel implements the propagation model described in "Yet Another Network Simulator", (http://cutebugs.net/files/wns2-yans.pdf). More...

class	ns3::YansWifiPhy
	802.11 PHY layer modelThis PHY implements a model of 802.11a. More...

Enumerations
enum	{ ns3::MacLowTransmissionParameters::ACK_NONE, ns3::MacLowTransmissionParameters::ACK_NORMAL, ns3::MacLowTransmissionParameters::ACK_FAST, ns3::MacLowTransmissionParameters::ACK_SUPER_FAST, ns3::MacLowTransmissionParameters::BLOCK_ACK_BASIC, ns3::MacLowTransmissionParameters::BLOCK_ACK_COMPRESSED, ns3::MacLowTransmissionParameters::BLOCK_ACK_MULTI_TID }

enum	ns3::AcIndex { ns3::AC_BE = 0, ns3::AC_BK = 1, ns3::AC_VI = 2, ns3::AC_VO = 3, ns3::AC_BE_NQOS = 4, ns3::AC_UNDEF }
	This enumeration defines the Access Categories as an enumeration with values corresponding to the AC index (ACI) values specified (Table 8-104 "ACI-to-AC coding"; IEEE 802.11-2012). More...

enum	ns3::WifiMacHeader::AddressType { ns3::WifiMacHeader::ADDR1, ns3::WifiMacHeader::ADDR2, ns3::WifiMacHeader::ADDR3, ns3::WifiMacHeader::ADDR4 }
	Address types. More...

enum	ns3::WifiActionHeader::BlockAckActionValue { ns3::WifiActionHeader::BLOCK_ACK_ADDBA_REQUEST = 0, ns3::WifiActionHeader::BLOCK_ACK_ADDBA_RESPONSE = 1, ns3::WifiActionHeader::BLOCK_ACK_DELBA = 2 }
	Block ACK action field values See 802.11 Table 8-202. More...

enum	ns3::WifiActionHeader::CategoryValue { ns3::WifiActionHeader::BLOCK_ACK = 3, ns3::WifiActionHeader::MESH = 13, ns3::WifiActionHeader::MULTIHOP = 14, ns3::WifiActionHeader::SELF_PROTECTED = 15, ns3::WifiActionHeader::VENDOR_SPECIFIC_ACTION = 127 }

enum	ns3::WifiMacQueue::DropPolicy { ns3::WifiMacQueue::DROP_NEWEST, ns3::WifiMacQueue::DROP_OLDEST }

enum	ns3::StaWifiMac::MacState { ns3::StaWifiMac::ASSOCIATED, ns3::StaWifiMac::WAIT_PROBE_RESP, ns3::StaWifiMac::WAIT_ASSOC_RESP, ns3::StaWifiMac::BEACON_MISSED, ns3::StaWifiMac::REFUSED }
	The current MAC state of the STA. More...

enum	ns3::WifiActionHeader::MeshActionValue { ns3::WifiActionHeader::LINK_METRIC_REPORT = 0, ns3::WifiActionHeader::PATH_SELECTION = 1, ns3::WifiActionHeader::PORTAL_ANNOUNCEMENT = 2, ns3::WifiActionHeader::CONGESTION_CONTROL_NOTIFICATION = 3, ns3::WifiActionHeader::MDA_SETUP_REQUEST = 4, ns3::WifiActionHeader::MDA_SETUP_REPLY = 5, ns3::WifiActionHeader::MDAOP_ADVERTISMENT_REQUEST = 6, ns3::WifiActionHeader::MDAOP_ADVERTISMENTS = 7, ns3::WifiActionHeader::MDAOP_SET_TEARDOWN = 8, ns3::WifiActionHeader::TBTT_ADJUSTMENT_REQUEST = 9, ns3::WifiActionHeader::TBTT_ADJUSTMENT_RESPONSE = 10 }

enum	ns3::WifiActionHeader::MultihopActionValue { ns3::WifiActionHeader::PROXY_UPDATE = 0, ns3::WifiActionHeader::PROXY_UPDATE_CONFIRMATION = 1 }

enum	ns3::WifiRemoteStationManager::ProtectionMode { ns3::WifiRemoteStationManager::RTS_CTS, ns3::WifiRemoteStationManager::CTS_TO_SELF }

enum	ns3::WifiMacHeader::QosAckPolicy { ns3::WifiMacHeader::NORMAL_ACK = 0, ns3::WifiMacHeader::NO_ACK = 1, ns3::WifiMacHeader::NO_EXPLICIT_ACK = 2, ns3::WifiMacHeader::BLOCK_ACK = 3 }
	ACK policy for QoS frames. More...

enum	ns3::WifiActionHeader::SelfProtectedActionValue { ns3::WifiActionHeader::PEER_LINK_OPEN = 1, ns3::WifiActionHeader::PEER_LINK_CONFIRM = 2, ns3::WifiActionHeader::PEER_LINK_CLOSE = 3, ns3::WifiActionHeader::GROUP_KEY_INFORM = 4, ns3::WifiActionHeader::GROUP_KEY_ACK = 5 }

enum	ns3::AparfWifiManager::State { ns3::AparfWifiManager::High, ns3::AparfWifiManager::Low, ns3::AparfWifiManager::Spread }
	Enumeration of the possible states of the channel. More...

enum	ns3::OriginatorBlockAckAgreement::State { ns3::OriginatorBlockAckAgreement::PENDING, ns3::OriginatorBlockAckAgreement::ESTABLISHED, ns3::OriginatorBlockAckAgreement::INACTIVE, ns3::OriginatorBlockAckAgreement::UNSUCCESSFUL }
	Represents the state for this agreement. More...

enum	ns3::WifiPhy::State { ns3::WifiPhy::IDLE, ns3::WifiPhy::CCA_BUSY, ns3::WifiPhy::TX, ns3::WifiPhy::RX, ns3::WifiPhy::SWITCHING, ns3::WifiPhy::SLEEP }
	The state of the PHY layer. More...

enum	ns3::WifiPhyStandard { ns3::WIFI_PHY_STANDARD_80211a, ns3::WIFI_PHY_STANDARD_80211b, ns3::WIFI_PHY_STANDARD_80211g, ns3::WIFI_PHY_STANDARD_80211_10MHZ, ns3::WIFI_PHY_STANDARD_80211_5MHZ, ns3::WIFI_PHY_STANDARD_holland, ns3::WIFI_PHY_STANDARD_80211n_2_4GHZ, ns3::WIFI_PHY_STANDARD_80211n_5GHZ, ns3::WIFI_PHY_STANDARD_80211ac, ns3::WIFI_PHY_STANDARD_UNSPECIFIED }
	Identifies the PHY specification that a Wifi device is configured to use. More...

enum	ns3::WifiPreamble { ns3::WIFI_PREAMBLE_LONG, ns3::WIFI_PREAMBLE_SHORT, ns3::WIFI_PREAMBLE_HT_MF, ns3::WIFI_PREAMBLE_HT_GF, ns3::WIFI_PREAMBLE_VHT, ns3::WIFI_PREAMBLE_NONE }
	The type of preamble to be used by an IEEE 802.11 transmission. More...

Functions
uint8_t	ns3::QosUtilsGetTidForPacket (Ptr< const Packet > packet)
	If a qos tag is attached to the packet, returns a value < 8. More...

bool	ns3::QosUtilsIsOldPacket (uint16_t startingSeq, uint16_t seqNumber)
	This function checks if packet with sequence number seqNumber is an "old" packet. More...

uint32_t	ns3::QosUtilsMapSeqControlToUniqueInteger (uint16_t seqControl, uint16_t endSequence)
	Next function is useful to correctly sort buffered packets under block ack. More...

AcIndex	ns3::QosUtilsMapTidToAc (uint8_t tid)
	Maps TID (Traffic ID) to Access classes. More...

Detailed Description

This section documents the API of the ns-3 Wifi module.

For a generic functional description, please refer to the ns-3 manual.

Enumeration Type Documentation

anonymous enum

private

Enumerator
ACK_NONE
ACK_NORMAL
ACK_FAST
ACK_SUPER_FAST
BLOCK_ACK_BASIC
BLOCK_ACK_COMPRESSED
BLOCK_ACK_MULTI_TID

Definition at line 472 of file mac-low.h.

enum ns3::AcIndex

This enumeration defines the Access Categories as an enumeration with values corresponding to the AC index (ACI) values specified (Table 8-104 "ACI-to-AC coding"; IEEE 802.11-2012).

Enumerator
AC_BE	Best Effort.
AC_BK	Background.
AC_VI	Video.
AC_VO	Voice.
AC_BE_NQOS	Total number of ACs.
AC_UNDEF

Definition at line 36 of file qos-utils.h.

enum ns3::WifiMacHeader::AddressType

Address types.

Enumerator
ADDR1
ADDR2
ADDR3
ADDR4

Definition at line 98 of file wifi-mac-header.h.

enum ns3::WifiActionHeader::BlockAckActionValue

Block ACK action field values See 802.11 Table 8-202.

Enumerator
BLOCK_ACK_ADDBA_REQUEST
BLOCK_ACK_ADDBA_RESPONSE
BLOCK_ACK_DELBA

Definition at line 604 of file mgt-headers.h.

enum ns3::WifiActionHeader::CategoryValue

Enumerator
BLOCK_ACK
MESH
MULTIHOP
SELF_PROTECTED
VENDOR_SPECIFIC_ACTION

Definition at line 559 of file mgt-headers.h.

enum ns3::WifiMacQueue::DropPolicy

Enumerator
DROP_NEWEST
DROP_OLDEST

Definition at line 58 of file wifi-mac-queue.h.

enum ns3::StaWifiMac::MacState

private

The current MAC state of the STA.

Enumerator
ASSOCIATED
WAIT_PROBE_RESP
WAIT_ASSOC_RESP
BEACON_MISSED
REFUSED

Definition at line 90 of file sta-wifi-mac.h.

enum ns3::WifiActionHeader::MeshActionValue

Enumerator
LINK_METRIC_REPORT
PATH_SELECTION
PORTAL_ANNOUNCEMENT
CONGESTION_CONTROL_NOTIFICATION
MDA_SETUP_REQUEST
MDA_SETUP_REPLY
MDAOP_ADVERTISMENT_REQUEST
MDAOP_ADVERTISMENTS
MDAOP_SET_TEARDOWN
TBTT_ADJUSTMENT_REQUEST
TBTT_ADJUSTMENT_RESPONSE

Definition at line 585 of file mgt-headers.h.

enum ns3::WifiActionHeader::MultihopActionValue

Enumerator
PROXY_UPDATE
PROXY_UPDATE_CONFIRMATION

Definition at line 579 of file mgt-headers.h.

enum ns3::WifiRemoteStationManager::ProtectionMode

Enumerator
RTS_CTS
CTS_TO_SELF

Definition at line 96 of file wifi-remote-station-manager.h.

enum ns3::WifiMacHeader::QosAckPolicy

ACK policy for QoS frames.

Enumerator
NORMAL_ACK
NO_ACK
NO_EXPLICIT_ACK
BLOCK_ACK

Definition at line 87 of file wifi-mac-header.h.

enum ns3::WifiActionHeader::SelfProtectedActionValue

Enumerator
PEER_LINK_OPEN
PEER_LINK_CONFIRM
PEER_LINK_CLOSE
GROUP_KEY_INFORM
GROUP_KEY_ACK

Definition at line 570 of file mgt-headers.h.

enum ns3::AparfWifiManager::State

Enumeration of the possible states of the channel.

Enumerator
High
Low
Spread

Definition at line 64 of file aparf-wifi-manager.h.

enum ns3::OriginatorBlockAckAgreement::State

Represents the state for this agreement.

PENDING: If an agreement is in PENDING state it means that an ADDBARequest frame was sent to recipient in order to setup the block ack and the originator is waiting for the relative ADDBAResponse frame.

ESTABLISHED: The block ack is active and all packets relative to this agreement are transmitted with ack policy set to block ack.

INACTIVE: In our implementation, block ack tear-down happens only if an inactivity timeout occurs so we could have an active block ack but a number of packets that doesn't reach the value of m_blockAckThreshold (see ns3::BlockAckManager). In these conditions the agreement becomes INACTIVE until that the number of packets reaches the value of m_blockAckThreshold again.

UNSUCCESSFUL (not used for now): The agreement's state becomes UNSUCCESSFUL if:

its previous state was PENDING and an ADDBAResponse frame wasn't received from recipient station within an interval of time defined by m_bAckSetupTimeout attribute in ns3::WifiMac.
an ADDBAResponse frame is received from recipient and the Status Code field is set to failure.

In both cases for station addressed by BlockAckAgreement::m_peer and for TID BlockAckAgreement::m_tid block ack mechanism won't be used.

Enumerator
PENDING
ESTABLISHED
INACTIVE
UNSUCCESSFUL

Definition at line 91 of file originator-block-ack-agreement.h.

enum ns3::WifiPhy::State

The state of the PHY layer.

Enumerator
IDLE	The PHY layer is IDLE.
CCA_BUSY	The PHY layer has sense the medium busy through the CCA mechanism.
TX	The PHY layer is sending a packet.
RX	The PHY layer is receiving a packet.
SWITCHING	The PHY layer is switching to other channel.
SLEEP	The PHY layer is sleeping.

Definition at line 168 of file wifi-phy.h.

enum ns3::WifiPhyStandard

Identifies the PHY specification that a Wifi device is configured to use.

Enumerator
WIFI_PHY_STANDARD_80211a	OFDM PHY for the 5 GHz band (Clause 17)
WIFI_PHY_STANDARD_80211b	DSSS PHY (Clause 15) and HR/DSSS PHY (Clause 18)
WIFI_PHY_STANDARD_80211g	ERP-OFDM PHY (Clause 19, Section 19.5)
WIFI_PHY_STANDARD_80211_10MHZ	OFDM PHY for the 5 GHz band (Clause 17 with 10 MHz channel bandwidth)
WIFI_PHY_STANDARD_80211_5MHZ	OFDM PHY for the 5 GHz band (Clause 17 with 5 MHz channel bandwidth)
WIFI_PHY_STANDARD_holland	This is intended to be the configuration used in this paper: Gavin Holland, Nitin Vaidya and Paramvir Bahl, "A Rate-Adaptive MAC Protocol for Multi-Hop Wireless Networks", in Proc. of ACM MOBICOM, 2001.
WIFI_PHY_STANDARD_80211n_2_4GHZ	HT OFDM PHY for the 2.4 GHz band (clause 20)
WIFI_PHY_STANDARD_80211n_5GHZ	HT OFDM PHY for the 5 GHz band (clause 20)
WIFI_PHY_STANDARD_80211ac	VHT OFDM PHY (clause 22)
WIFI_PHY_STANDARD_UNSPECIFIED	Unspecified.

Definition at line 30 of file wifi-phy-standard.h.

enum ns3::WifiPreamble

The type of preamble to be used by an IEEE 802.11 transmission.

Enumerator
WIFI_PREAMBLE_LONG
WIFI_PREAMBLE_SHORT
WIFI_PREAMBLE_HT_MF
WIFI_PREAMBLE_HT_GF
WIFI_PREAMBLE_VHT
WIFI_PREAMBLE_NONE

Definition at line 30 of file wifi-preamble.h.

Function Documentation

uint8_t ns3::QosUtilsGetTidForPacket ( Ptr< const Packet > packet )

If a qos tag is attached to the packet, returns a value < 8.

A value >= 8 is returned otherwise.

Parameters

packet the packet to checked for a QoS tag

Returns: a value less than 8 if QoS tag was present, a value >= 8 is returned if no QoS tag was present

Definition at line 62 of file qos-utils.cc.

References ns3::SocketPriorityTag::GetPriority(), and ns3::Packet::PeekPacketTag().

Referenced by ns3::StaWifiMac::Enqueue(), ns3::AdhocWifiMac::Enqueue(), ns3::OcbWifiMac::Enqueue(), ns3::ApWifiMac::ForwardDown(), and ns3::OcbWifiMac::SendVsc().

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bool ns3::QosUtilsIsOldPacket	(	uint16_t	startingSeq,
		uint16_t	seqNumber
	)

This function checks if packet with sequence number seqNumber is an "old" packet.

The sequence number space is considered divided into two parts, one of which is "old" and one of which is "new" by means of a boundary created by adding half the sequence number range to the starting sequence number startingSeq. So this function works fine also when seqNumber is smaller than startingSeq and startingSeq + 2048 is greater than 4096 because all comparison are circular modulo 2^12. The following are possible scenarios:

--— = old packets +++++ = new packets

CASE A:

0 4095 |++++++|-------------—|++++++| ^ ^ | endSeq | startingSeq

CASE B:

0 4095 |---—|++++++++++++++++|--—| ^ ^ | startingSeq | endSeq

Here in the examples endSeq is the sequenceNumber of the "last" new packet. So this function, when specified a starting sequence and a sequence number, returns true if that packet (with sequence number numberSeq)) belongs to the section of the sequence number space marked with '-' characters. The function returns false otherwise.

Parameters

startingSeq	the starting sequence number
seqNumber	the sequence number to be checked

Returns: true if the packet is old, false otherwise

Definition at line 88 of file qos-utils.cc.

References NS_ASSERT.

Referenced by QosUtilsIsOldPacketTest::DoRun(), ns3::BlockAckManager::GetNextPacket(), ns3::BlockAckManager::PeekNextPacketByTidAndAddress(), ns3::MacLow::ReceiveMpdu(), ns3::MacLow::SendBlockAckAfterBlockAckRequest(), ns3::BlockAckCache::UpdateWithBlockAckReq(), and ns3::BlockAckCache::UpdateWithMpdu().

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uint32_t ns3::QosUtilsMapSeqControlToUniqueInteger	(	uint16_t	seqControl,
		uint16_t	endSequence
	)

Next function is useful to correctly sort buffered packets under block ack.

When an BAR is received from originator station, completed "old" (see section 9.10.3 in IEEE 802.11e) packets must be forwarded up before "new" packets.

Parameters