A Discrete-Event Network Simulator
API
ns3::NistErrorRateModel Class Reference

A model for the error rate for different modulations. More...

#include "nist-error-rate-model.h"

+ Inheritance diagram for ns3::NistErrorRateModel:
+ Collaboration diagram for ns3::NistErrorRateModel:

Public Member Functions

 NistErrorRateModel ()
 
virtual double GetChunkSuccessRate (WifiMode mode, WifiTxVector txVector, double snr, uint32_t nbits) const
 A pure virtual method that must be implemented in the subclass. More...
 
- Public Member Functions inherited from ns3::ErrorRateModel
double CalculateSnr (WifiTxVector txVector, double ber) const
 
- Public Member Functions inherited from ns3::Object
 Object ()
 Constructor. More...
 
virtual ~Object ()
 Destructor. More...
 
void AggregateObject (Ptr< Object > other)
 Aggregate two Objects together. More...
 
void Dispose (void)
 Dispose of this Object. More...
 
AggregateIterator GetAggregateIterator (void) const
 Get an iterator to the Objects aggregated to this one. More...
 
virtual TypeId GetInstanceTypeId (void) const
 Implement the GetInstanceTypeId method defined in ObjectBase. More...
 
template<typename T >
Ptr< T > GetObject (void) const
 Get a pointer to the requested aggregated Object. More...
 
template<typename T >
Ptr< T > GetObject (TypeId tid) const
 Get a pointer to the requested aggregated Object by TypeId. More...
 
void Initialize (void)
 Invoke DoInitialize on all Objects aggregated to this one. More...
 
bool IsInitialized (void) const
 Check if the object has been initialized. 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...
 
SimpleRefCountoperator= (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
 Get the value of an attribute, raising fatal errors if unsuccessful. More...
 
bool GetAttributeFailSafe (std::string name, AttributeValue &value) const
 Get the value of an attribute without raising erros. More...
 
void SetAttribute (std::string name, const AttributeValue &value)
 Set a single attribute, raising fatal errors if unsuccessful. More...
 
bool SetAttributeFailSafe (std::string name, const AttributeValue &value)
 Set a single attribute without raising errors. More...
 
bool TraceConnect (std::string name, std::string context, const CallbackBase &cb)
 Connect a TraceSource to a Callback with a context. More...
 
bool TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
 Connect a TraceSource to a Callback without a context. More...
 
bool TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected with a context. More...
 
bool TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected without a context. More...
 

Static Public Member Functions

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

double CalculatePe (double p, uint32_t bValue) const
 Return the coded BER for the given p and b. More...
 
double Get16QamBer (double snr) const
 Return BER of QAM16 at the given SNR. More...
 
double Get256QamBer (double snr) const
 Return BER of QAM256 at the given SNR. More...
 
double Get64QamBer (double snr) const
 Return BER of QAM64 at the given SNR. More...
 
double GetBpskBer (double snr) const
 Return BER of BPSK at the given SNR. More...
 
double GetFec16QamBer (double snr, uint32_t nbits, uint32_t bValue) const
 Return BER of QAM16 at the given SNR after applying FEC. More...
 
double GetFec256QamBer (double snr, uint32_t nbits, uint32_t bValue) const
 Return BER of QAM256 at the given SNR after applying FEC. More...
 
double GetFec64QamBer (double snr, uint32_t nbits, uint32_t bValue) const
 Return BER of QAM64 at the given SNR after applying FEC. More...
 
double GetFecBpskBer (double snr, uint32_t nbits, uint32_t bValue) const
 Return BER of BPSK at the given SNR after applying FEC. More...
 
double GetFecQpskBer (double snr, uint32_t nbits, uint32_t bValue) const
 Return BER of QPSK at the given SNR after applying FEC. More...
 
double GetQpskBer (double snr) const
 Return BER of QPSK at the given SNR. More...
 

Additional Inherited Members

- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 Copy an Object. More...
 
virtual void DoDispose (void)
 Destructor implementation. More...
 
virtual void DoInitialize (void)
 Initialize() implementation. More...
 
virtual void NotifyNewAggregate (void)
 Notify all Objects aggregated to this one of a new Object being aggregated. More...
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 Complete construction of ObjectBase; invoked by derived classes. More...
 
virtual void NotifyConstructionCompleted (void)
 Notifier called once the ObjectBase is fully constructed. More...
 

Detailed Description

A model for the error rate for different modulations.

Introspection did not find any typical Config paths.

For OFDM modulation, the model description and validation can be found in http://www.nsnam.org/~pei/80211ofdm.pdf. For DSSS modulations (802.11b), the model uses the DsssErrorRateModel.


No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 32 bytes (on a 64-bit architecture).

Definition at line 39 of file nist-error-rate-model.h.

Constructor & Destructor Documentation

ns3::NistErrorRateModel::NistErrorRateModel ( )

Definition at line 44 of file nist-error-rate-model.cc.

Member Function Documentation

double ns3::NistErrorRateModel::CalculatePe ( double  p,
uint32_t  bValue 
) const
private

Return the coded BER for the given p and b.

Parameters
p
bValue
Returns
BER

Definition at line 130 of file nist-error-rate-model.cc.

References NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by GetFec16QamBer(), GetFec256QamBer(), GetFec64QamBer(), GetFecBpskBer(), and GetFecQpskBer().

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double ns3::NistErrorRateModel::Get16QamBer ( double  snr) const
private

Return BER of QAM16 at the given SNR.

Parameters
snrsnr ratio (not dB)
Returns
BER of QAM16 at the given SNR

Definition at line 69 of file nist-error-rate-model.cc.

References NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by GetFec16QamBer().

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double ns3::NistErrorRateModel::Get256QamBer ( double  snr) const
private

Return BER of QAM256 at the given SNR.

Parameters
snrsnr ratio (not dB)
Returns
BER of QAM256 at the given SNR

Definition at line 88 of file nist-error-rate-model.cc.

References NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by GetFec256QamBer().

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double ns3::NistErrorRateModel::Get64QamBer ( double  snr) const
private

Return BER of QAM64 at the given SNR.

Parameters
snrsnr ratio (not dB)
Returns
BER of QAM64 at the given SNR

Definition at line 79 of file nist-error-rate-model.cc.

References NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by GetFec64QamBer().

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double ns3::NistErrorRateModel::GetBpskBer ( double  snr) const
private

Return BER of BPSK at the given SNR.

Parameters
snrsnr ratio (not dB)
Returns
BER of BPSK at the given SNR

Definition at line 49 of file nist-error-rate-model.cc.

References NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by GetFecBpskBer().

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double ns3::NistErrorRateModel::GetChunkSuccessRate ( WifiMode  mode,
WifiTxVector  txVector,
double  snr,
uint32_t  nbits 
) const
virtual

A pure virtual method that must be implemented in the subclass.

This method returns the probability that the given 'chunk' of the packet will be successfully received by the PHY.

A chunk can be viewed as a part of a packet with equal SNR. The probability of successfully receiving the chunk depends on the mode, the SNR, and the size of the chunk.

Note that both a WifiMode and a WifiTxVector (which contains a WifiMode) are passed into this method. The WifiTxVector may be from a signal that contains multiple modes (e.g. PLCP header sent differently from PLCP payload). Consequently, the mode parameter is what the method uses to calculate the chunk error rate, and the txVector is used for other information as needed.

Parameters
modethe Wi-Fi mode applicable to this chunk
txvectorTXVECTOR of the overall transmission
snrthe SNR of the chunk
nbitsthe number of bits in this chunk
Returns
probability of successfully receiving the chunk

Implements ns3::ErrorRateModel.

Definition at line 250 of file nist-error-rate-model.cc.

References ns3::WifiMode::GetCodeRate(), ns3::WifiMode::GetConstellationSize(), ns3::WifiMode::GetDataRate(), ns3::DsssErrorRateModel::GetDsssDbpskSuccessRate(), ns3::DsssErrorRateModel::GetDsssDqpskCck11SuccessRate(), ns3::DsssErrorRateModel::GetDsssDqpskCck5_5SuccessRate(), ns3::DsssErrorRateModel::GetDsssDqpskSuccessRate(), GetFec16QamBer(), GetFec256QamBer(), GetFec64QamBer(), GetFecBpskBer(), GetFecQpskBer(), ns3::WifiTxVector::GetMode(), ns3::WifiMode::GetModulationClass(), NS_ASSERT, NS_LOG_FUNCTION, ns3::WIFI_CODE_RATE_1_2, ns3::WIFI_CODE_RATE_2_3, ns3::WIFI_CODE_RATE_5_6, ns3::WIFI_MOD_CLASS_DSSS, ns3::WIFI_MOD_CLASS_ERP_OFDM, ns3::WIFI_MOD_CLASS_HR_DSSS, ns3::WIFI_MOD_CLASS_HT, ns3::WIFI_MOD_CLASS_OFDM, and ns3::WIFI_MOD_CLASS_VHT.

Referenced by WifiErrorRateModelsTestCaseNist::DoRun().

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double ns3::NistErrorRateModel::GetFec16QamBer ( double  snr,
uint32_t  nbits,
uint32_t  bValue 
) const
private

Return BER of QAM16 at the given SNR after applying FEC.

Parameters
snrsnr ratio (not dB)
nbitsthe number of bits in the chunk
bValue
Returns
BER of QAM16 at the given SNR after applying FEC

Definition at line 202 of file nist-error-rate-model.cc.

References CalculatePe(), Get16QamBer(), min, and NS_LOG_FUNCTION.

Referenced by GetChunkSuccessRate().

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double ns3::NistErrorRateModel::GetFec256QamBer ( double  snr,
uint32_t  nbits,
uint32_t  bValue 
) const
private

Return BER of QAM256 at the given SNR after applying FEC.

Parameters
snrsnr ratio (not dB)
nbitsthe number of bits in the chunk
bValue
Returns
BER of QAM256 at the given SNR after applying FEC

Definition at line 234 of file nist-error-rate-model.cc.

References CalculatePe(), Get256QamBer(), min, and NS_LOG_FUNCTION.

Referenced by GetChunkSuccessRate().

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double ns3::NistErrorRateModel::GetFec64QamBer ( double  snr,
uint32_t  nbits,
uint32_t  bValue 
) const
private

Return BER of QAM64 at the given SNR after applying FEC.

Parameters
snrsnr ratio (not dB)
nbitsthe number of bits in the chunk
bValue
Returns
BER of QAM64 at the given SNR after applying FEC

Definition at line 218 of file nist-error-rate-model.cc.

References CalculatePe(), Get64QamBer(), min, and NS_LOG_FUNCTION.

Referenced by GetChunkSuccessRate().

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double ns3::NistErrorRateModel::GetFecBpskBer ( double  snr,
uint32_t  nbits,
uint32_t  bValue 
) const
private

Return BER of BPSK at the given SNR after applying FEC.

Parameters
snrsnr ratio (not dB)
nbitsthe number of bits in the chunk
bValue
Returns
BER of BPSK at the given SNR after applying FEC

Definition at line 98 of file nist-error-rate-model.cc.

References CalculatePe(), GetBpskBer(), min, and NS_LOG_FUNCTION.

Referenced by GetChunkSuccessRate().

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double ns3::NistErrorRateModel::GetFecQpskBer ( double  snr,
uint32_t  nbits,
uint32_t  bValue 
) const
private

Return BER of QPSK at the given SNR after applying FEC.

Parameters
snrsnr ratio (not dB)
nbitsthe number of bits in the chunk
bValue
Returns
BER of QPSK at the given SNR after applying FEC

Definition at line 114 of file nist-error-rate-model.cc.

References CalculatePe(), GetQpskBer(), min, and NS_LOG_FUNCTION.

Referenced by GetChunkSuccessRate().

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double ns3::NistErrorRateModel::GetQpskBer ( double  snr) const
private

Return BER of QPSK at the given SNR.

Parameters
snrsnr ratio (not dB)
Returns
BER of QPSK at the given SNR

Definition at line 59 of file nist-error-rate-model.cc.

References NS_LOG_FUNCTION, and NS_LOG_INFO.

Referenced by GetFecQpskBer().

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TypeId ns3::NistErrorRateModel::GetTypeId ( void  )
static

Definition at line 34 of file nist-error-rate-model.cc.

References ns3::TypeId::SetParent().

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