24 #include "ns3/assert.h"
26 #include "ns3/simulator.h"
27 #include "ns3/string.h"
28 #include "ns3/pointer.h"
29 #include "ns3/boolean.h"
51 .SetGroupName (
"Wifi")
53 .AddAttribute (
"BeaconInterval",
54 "Delay between two beacons",
59 .AddAttribute (
"BeaconJitter",
60 "A uniform random variable to cause the initial beacon starting time (after simulation time 0) "
61 "to be distributed between 0 and the BeaconInterval.",
64 MakePointerChecker<UniformRandomVariable> ())
65 .AddAttribute (
"EnableBeaconJitter",
66 "If beacons are enabled, whether to jitter the initial send event.",
70 .AddAttribute (
"BeaconGeneration",
71 "Whether or not beacons are generated.",
76 .AddAttribute (
"EnableNonErpProtection",
"Whether or not protection mechanism should be used when non-ERP STAs are present within the BSS."
77 "This parameter is only used when ERP is supported by the AP.",
163 m_beaconDca->SetWifiRemoteStationManager (stationManager);
185 NS_LOG_WARN (
"beacon interval should be multiple of 1024us (802.11 time unit), see IEEE Std. 802.11-2012");
214 for (std::list<Mac48Address>::const_iterator i =
m_staList.begin (); i !=
m_staList.end (); i++)
273 NS_LOG_FUNCTION (
this << packet << from << to << static_cast<uint32_t> (tid));
316 m_dca->Queue (packet, hdr);
371 NS_LOG_DEBUG (
"Adding supported rate of " << modeDataRate);
482 m_dca->Queue (packet, hdr);
509 assoc.SetStatusCode (code);
531 m_dca->Queue (packet, hdr);
659 NS_LOG_DEBUG (
"forwarding frame from=" << from <<
", to=" << to);
695 else if (hdr->
IsMgt ())
714 bool problem =
false;
715 bool isHtStation =
false;
716 bool isOfdmStation =
false;
717 bool isErpStation =
false;
718 bool isDsssStation =
false;
727 isDsssStation =
false;
731 isErpStation =
false;
735 isOfdmStation =
false;
737 if (isDsssStation ==
false && isErpStation ==
false && isOfdmStation ==
false)
747 isDsssStation =
true;
755 isOfdmStation =
true;
847 if (!isErpStation && isDsssStation)
859 for (std::list<Mac48Address>::iterator i =
m_staList.begin (); i !=
m_staList.end (); i++)
903 i != packets.end (); ++i)
905 if ((*i).second.GetDestinationAddr () ==
GetAddress ())
907 ForwardUp ((*i).first, (*i).second.GetSourceAddr (),
908 (*i).second.GetDestinationAddr ());
914 NS_LOG_DEBUG (
"forwarding QoS frame from=" << from <<
", to=" << to);
931 NS_LOG_DEBUG (
"Scheduling initial beacon for access point " <<
GetAddress () <<
" at time " << jitter <<
" microseconds");
948 return useProtection;
HtOperations GetHtOperations(void) const
Return the HT operations of the current AP.
virtual void DoInitialize(void)
Initialize() implementation.
uint32_t RemoveHeader(Header &header)
Deserialize and remove the header from the internal buffer.
The HT Operations Information ElementThis class knows how to serialise and deserialise the HT Operati...
uint32_t GetVhtCapabilitiesInfo() const
void SetBeaconInterval(Time interval)
void AddSupportedRate(uint32_t bs)
Add the given rate to the supported rates.
Simulation virtual time values and global simulation resolution.
bool IsSupportedTxMcs(uint8_t mcs) const
void AddSupportedMcs(Mac48Address address, WifiMode mcs)
Record the MCS index supported by the station.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by "...
void SetStream(int64_t stream)
Specifies the stream number for this RNG stream.
AttributeValue implementation for Boolean.
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
virtual void SetWifiRemoteStationManager(Ptr< WifiRemoteStationManager > stationManager)
Hold variables of type string.
int64_t AssignStreams(int64_t stream)
Assign a fixed random variable stream number to the random variables used by this model...
void RecordWaitAssocTxOk(Mac48Address address)
Records that we are waiting for an ACK for the association response we sent.
virtual uint32_t GetNModes(void) const =0
The WifiPhy::GetNModes() and WifiPhy::GetMode() methods are used (e.g., by a WifiRemoteStationManager...
Ptr< const AttributeAccessor > MakeBooleanAccessor(T1 a1)
Create an AttributeAccessor for a class data member, or a lone class get functor or set method...
EdcaQueues m_edca
This is a map from Access Category index to the corresponding channel access function.
enum WifiModulationClass GetModulationClass() const
virtual uint8_t GetNMcs(void) const =0
The WifiPhy::GetNMcs() method is used (e.g., by a WifiRemoteStationManager) to determine the set of t...
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file...
MacTxMiddle * m_txMiddle
TX middle (aggregation etc.)
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
The HT Capabilities Information ElementThis class knows how to serialise and deserialise the HT Capab...
uint32_t GetSize(void) const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
std::list< std::pair< Ptr< Packet >, AmsduSubframeHeader > >::const_iterator DeaggregatedMsdusCI
bool IsBroadcast(void) const
void SetSlot(Time slotTime)
static DeaggregatedMsdus Deaggregate(Ptr< Packet > aggregatedPacket)
void NotifyRxDrop(Ptr< const Packet > packet)
virtual bool GetShortPlcpPreambleSupported(void) const =0
void SendAssocResp(Mac48Address to, bool success)
Forward an association response packet to the DCF.
virtual bool SupportsSendFrom(void) const
Ptr< WifiPhy > m_phy
Wifi PHY.
Ptr< DcaTxop > m_beaconDca
Dedicated DcaTxop for beacons.
virtual Ssid GetSsid(void) const
The Supported Rates Information ElementThis class knows how to serialise and deserialise the Supporte...
void SetHtProtection(uint8_t htprotection)
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
bool IsMandatory(void) const
VhtCapabilities GetVhtCapabilities(void) const
Return the VHT capability of the device.
virtual void Receive(Ptr< Packet > packet, const WifiMacHeader *hdr)
This method acts as the MacRxMiddle receive callback and is invoked to notify us that a frame has bee...
virtual WifiMode GetMcs(uint8_t mcs) const =0
The WifiPhy::GetMcs() method is used (e.g., by a WifiRemoteStationManager) to determine the set of tr...
uint8_t QosUtilsGetTidForPacket(Ptr< const Packet > packet)
If a qos tag is attached to the packet, returns a value < 8.
void RecordDisassociated(Mac48Address address)
Records that the STA was disassociated.
bool GetUseNonErpProtection(void) const
Return whether protection for non-ERP stations is used in the BSS.
Ptr< const AttributeChecker > MakeTimeChecker(const Time min, const Time max)
Helper to make a Time checker with bounded range.
bool m_enableBeaconGeneration
Flag whether beacons are being generated.
virtual void Enqueue(Ptr< const Packet > packet, Mac48Address to)
void SetShortSlotTimeEnabled(bool enable)
Enable or disable short slot time.
virtual void SetBssid(Mac48Address bssid)
void ForwardUp(Ptr< Packet > packet, Mac48Address from, Mac48Address to)
Forward the packet up to the device.
virtual uint32_t GetChannelWidth(void) const =0
virtual void SetWifiRemoteStationManager(Ptr< WifiRemoteStationManager > stationManager)
base class for all MAC-level wifi objects.
void SetSuccess(void)
Set success bit to 0 (success).
bool m_qosSupported
This Boolean is set true iff this WifiMac is to model 802.11e/WMM style Quality of Service...
Ptr< const AttributeAccessor > MakePointerAccessor(T1 a1)
Create an AttributeAccessor for a class data member, or a lone class get functor or set method...
static EventId Schedule(Time const &delay, MEM mem_ptr, OBJ obj)
Schedule an event to expire after delay.
void SetTypeOfStation(TypeOfStation type)
This method is invoked by a subclass to specify what type of station it is implementing.
int64_t GetMicroSeconds(void) const
Get an approximation of the time stored in this instance in the indicated unit.
AttributeValue implementation for Time.
Ptr< DcaTxop > m_dca
This holds a pointer to the DCF instance for this WifiMac - used for transmission of frames to non-Qo...
The IEEE 802.11ac VHT Capabilities.
static TypeId GetTypeId(void)
void ForwardDown(Ptr< const Packet > packet, Mac48Address from, Mac48Address to)
Forward the packet down to DCF/EDCAF (enqueue the packet).
void RecordGotAssocTxFailed(Mac48Address address)
Records that we missed an ACK for the association response we sent.
WifiMode GetBasicMode(uint32_t i) const
Return a basic mode from the set of basic modes.
bool GetShortPreambleEnabled(void) const
Determine whether short preamble should be enabled or not in the BSS.
void AddStationHtCapabilities(Mac48Address from, HtCapabilities htcapabilities)
Records HT capabilities of the remote station.
bool m_vhtSupported
This Boolean is set true iff this WifiMac is to model 802.11ac.
bool m_enableNonErpProtection
Flag whether protection mechanism is used or not when non-ERP STAs are present within the BSS...
AcIndex QosUtilsMapTidToAc(uint8_t tid)
Maps TID (Traffic ID) to Access classes.
virtual void SetAddress(Mac48Address address)
uint8_t GetMcsValue(void) const
std::string GetUniqueName(void) const
static Mac48Address GetBroadcast(void)
EventId m_beaconEvent
Event to generate one beacon.
Mac48Address GetAddress(void) const
Return the MAC address of this MacLow.
virtual uint32_t GetNBssMembershipSelectors(void) const =0
The WifiPhy::NBssMembershipSelectors() method is used (e.g., by a WifiRemoteStationManager) to determ...
Ptr< MacLow > m_low
MacLow (RTS, CTS, DATA, ACK etc.)
uint32_t GetNBasicMcs(void) const
Return the number of basic MCS index.
HtCapabilities GetHtCapabilities(void) const
Return the HT capability of the device.
void SetBasicRate(uint32_t bs)
Set the given rate to basic rates.
virtual void Receive(Ptr< Packet > packet, const WifiMacHeader *hdr)
This method acts as the MacRxMiddle receive callback and is invoked to notify us that a frame has bee...
virtual void DeaggregateAmsduAndForward(Ptr< Packet > aggregatedPacket, const WifiMacHeader *hdr)
This method is called to de-aggregate an A-MSDU and forward the constituent packets up the stack...
std::list< Mac48Address > m_staList
List of all stations currently associated to the AP.
Ptr< Packet > Copy(void) const
performs a COW copy of the packet.
Status code for association response.
bool IsWaitAssocTxOk(Mac48Address address) const
Return whether we are waiting for an ACK for the association response we sent.
virtual void SetLinkUpCallback(Callback< void > linkUp)
virtual void SetLinkUpCallback(Callback< void > linkUp)
virtual void DoDispose()
Destructor implementation.
std::list< std::pair< Ptr< Packet >, AmsduSubframeHeader > > DeaggregatedMsdus
Every class exported by the ns3 library is enclosed in the ns3 namespace.
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 l...
virtual uint32_t GetBssMembershipSelector(uint32_t selector) const =0
The WifiPhy::BssMembershipSelector() method is used (e.g., by a WifiRemoteStationManager) to determin...
Ptr< const AttributeChecker > MakeBooleanChecker(void)
bool IsSupportedMcs(uint8_t mcs) const
DcfManager * m_dcfManager
DCF manager (access to channel)
void AddBasicMode(WifiMode mode)
Invoked in a STA upon association to store the set of rates which belong to the BSSBasicRateSet of th...
void SetUseNonErpProtection(bool enable)
Enable or disable protection for non-ERP stations.
void SetHtSupported(uint8_t htsupported)
WifiMode GetBasicMcs(uint32_t i) const
Return the MCS at the given list index.
uint64_t GetDataRate(uint32_t channelWidth, bool isShortGuardInterval, uint8_t nss) const
bool IsAssociated(Mac48Address address) const
Return whether the station associated.
virtual WifiMode GetMode(uint32_t mode) const =0
The WifiPhy::GetNModes() and WifiPhy::GetMode() methods are used (e.g., by a WifiRemoteStationManager...
static EventId ScheduleNow(MEM mem_ptr, OBJ obj)
Schedule an event to expire Now.
Ptr< const AttributeAccessor > MakeTimeAccessor(T1 a1)
Create an AttributeAccessor for a class data member, or a lone class get functor or set method...
bool GetBeaconGeneration(void) const
Return whether the AP is generating beacons.
Wi-Fi AP state machineHandle association, dis-association and authentication, of STAs within an infra...
void AddSupportedPlcpPreamble(Mac48Address address, bool isShortPreambleSupported)
Record whether the short PLCP preamble is supported by the station.
bool m_htSupported
This Boolean is set true iff this WifiMac is to model 802.11n.
void SendProbeResp(Mac48Address to)
Forward a probe response packet to the DCF.
SupportedRates GetSupportedRates(void) const
Return an instance of SupportedRates that contains all rates that we support including HT rates...
uint16_t GetHtCapabilitiesInfo(void) const
uint32_t GetNBasicModes(void) const
Return the number of basic modes we support.
bool GetShortSlotTimeSupported(Mac48Address address) const
Return whether the station supports short ERP slot time or not.
virtual void TxFailed(const WifiMacHeader &hdr)
The packet we sent was successfully received by the receiver (i.e.
void SendOneBeacon(void)
Forward a beacon packet to the beacon special DCF.
void AddSupportedErpSlotTime(Mac48Address address, bool isShortSlotTimeSupported)
Record whether the short ERP slot time is supported by the station.
#define NS_LOG_WARN(msg)
Use NS_LOG to output a message of level LOG_WARN.
virtual void DoDispose(void)
Destructor implementation.
virtual void SetAddress(Mac48Address address)
ErpInformation GetErpInformation(void) const
Return the ERP information of the current AP.
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
virtual Mac48Address GetAddress(void) const
Ptr< UniformRandomVariable > m_beaconJitter
UniformRandomVariable used to randomize the time of the first beacon.
CapabilityInformation GetCapabilities(void) const
Return the Capability information of the current AP.
Time m_beaconInterval
Interval between beacons.
std::list< Mac48Address > m_nonErpStations
List of all non-ERP stations currently associated to the AP.
virtual void DoInitialize()
Initialize() implementation.
void Cancel(void)
This method is syntactic sugar for the ns3::Simulator::Cancel method.
bool IsSupportedRate(uint32_t bs) const
Check if the given rate is supported.
Time MicroSeconds(uint64_t value)
Construct a Time in the indicated unit.
bool m_enableBeaconJitter
Flag whether the first beacon should be generated at random time.
Time GetBeaconInterval(void) const
virtual bool GetShortSlotTimeSupported(void) const
virtual void TxOk(const WifiMacHeader &hdr)
The packet we sent was successfully received by the receiver (i.e.
bool m_erpSupported
This Boolean is set true iff this WifiMac is to model 802.11g.
virtual void TxOk(const WifiMacHeader &hdr)
The packet we sent was successfully received by the receiver (i.e.
void SetShortPreambleEnabled(bool enable)
Enable or disable short PLCP preambles.
Ptr< WifiRemoteStationManager > m_stationManager
Remote station manager (rate control, RTS/CTS/fragmentation thresholds etc.)
void SetFailure(void)
Set success bit to 1 (failure).
std::list< Mac48Address > m_nonHtStations
List of all non-HT stations currently associated to the AP.
bool GetShortSlotTimeEnabled(void) const
Determine whether short slot time should be enabled or not in the BSS.
a unique identifier for an interface.
TypeId SetParent(TypeId tid)
Set the parent TypeId.
void StartBeaconing(void)
Start beacon transmission immediately.
void RecordGotAssocTxOk(Mac48Address address)
Records that we got an ACK for the association response we sent.
void AddHeader(const Header &header)
Add header to this packet.
void AddStationVhtCapabilities(Mac48Address from, VhtCapabilities vhtcapabilities)
Records VHT capabilities of the remote station.
void SetBeaconGeneration(bool enable)
Enable or disable beacon generation of the AP.
virtual void TxFailed(const WifiMacHeader &hdr)
The packet we sent was successfully received by the receiver (i.e.
bool GetShortPreambleSupported(Mac48Address address) const
Return whether the station supports short PLCP preamble or not.