This class defines all functions to create a spectrum model for Wi-Fi based on a a spectral model aligned with an OFDM subcarrier spacing of 312.5 KHz (model also reused for DSSS modulations) More...

#include "wifi-spectrum-value-helper.h"

Public Member Functions
virtual	~WifiSpectrumValueHelper ()
	Destructor. More...

Static Public Member Functions
static Ptr< SpectrumValue >	CreateDsssTxPowerSpectralDensity (uint32_t centerFrequency, double txPowerW)
	Create a transmit power spectral density corresponding to DSSS. More...

static Ptr< SpectrumValue >	CreateHtOfdmTxPowerSpectralDensity (uint32_t centerFrequency, uint32_t channelWidth, double txPowerW)
	Create a transmit power spectral density corresponding to OFDM High Throughput (HT) (802.11n/ac). More...

static Ptr< SpectrumValue >	CreateNoisePowerSpectralDensity (uint32_t centerFrequency, uint32_t channelWidth, double noiseFigure)

static Ptr< SpectrumValue >	CreateNoisePowerSpectralDensity (double noiseFigure, Ptr< SpectrumModel > spectrumModel)

static Ptr< SpectrumValue >	CreateOfdmTxPowerSpectralDensity (uint32_t centerFrequency, uint32_t channelWidth, double txPowerW)
	Create a transmit power spectral density corresponding to OFDM (802.11a/g). More...

static Ptr< SpectrumValue >	CreateRfFilter (uint32_t centerFrequency, uint32_t channelWidth)

static Ptr< SpectrumModel >	GetSpectrumModel (uint32_t centerFrequency, uint32_t channelWidth)
	Return a SpectrumModel instance corresponding to the center frequency and channel width. More...

Detailed Description

This class defines all functions to create a spectrum model for Wi-Fi based on a a spectral model aligned with an OFDM subcarrier spacing of 312.5 KHz (model also reused for DSSS modulations)

Definition at line 36 of file wifi-spectrum-value-helper.h.

Constructor & Destructor Documentation

ns3::WifiSpectrumValueHelper::~WifiSpectrumValueHelper ( )

virtual

Destructor.

Definition at line 363 of file wifi-spectrum-value-helper.cc.

Member Function Documentation

Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateDsssTxPowerSpectralDensity	(	uint32_t	centerFrequency,
		double	txPowerW
	)

static

Create a transmit power spectral density corresponding to DSSS.

The center frequency typically corresponds to 802.11b channel center frequencies but is not restricted to those frequencies.

Parameters

centerFrequency	center frequency (MHz)
txPowerW	transmit power (W) to allocate

Definition at line 286 of file wifi-spectrum-value-helper.cc.

References ns3::SpectrumValue::ConstBandsBegin(), ns3::SpectrumModel::GetNumBands(), GetSpectrumModel(), ns3::SpectrumValue::GetSpectrumModel(), NS_ASSERT, NS_LOG_FUNCTION, and ns3::SpectrumValue::ValuesBegin().

Referenced by ns3::SpectrumWifiPhy::GetTxPowerSpectralDensity().

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Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateHtOfdmTxPowerSpectralDensity	(	uint32_t	centerFrequency,
		uint32_t	channelWidth,
		double	txPowerW
	)

static

Create a transmit power spectral density corresponding to OFDM High Throughput (HT) (802.11n/ac).

Channel width may vary between 20, 40, 80, and 160 MHz.

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)
txPowerW	transmit power (W) to allocate

Definition at line 109 of file wifi-spectrum-value-helper.cc.

References ns3::SpectrumValue::ConstBandsBegin(), ns3::SpectrumModel::GetNumBands(), GetSpectrumModel(), ns3::SpectrumValue::GetSpectrumModel(), ns3::Integral(), NS_ASSERT_MSG, NS_FATAL_ERROR, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::SpectrumValue::ValuesBegin().

Referenced by ns3::SpectrumWifiPhy::GetTxPowerSpectralDensity().

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Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateNoisePowerSpectralDensity	(	uint32_t	centerFrequency,
		uint32_t	channelWidth,
		double	noiseFigure
	)

static

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)
noiseFigure	the noise figure in dB w.r.t. a reference temperature of 290K

Returns: a pointer to a newly allocated SpectrumValue representing the noise Power Spectral Density in W/Hz for each Band

Definition at line 308 of file wifi-spectrum-value-helper.cc.

References GetSpectrumModel().

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Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateNoisePowerSpectralDensity	(	double	noiseFigure,
		Ptr< SpectrumModel >	spectrumModel
	)

static

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)

Returns: a pointer to a newly allocated SpectrumValue representing the noise Power Spectral Density in W/Hz corresponding to thermal noise, for each Band

Definition at line 315 of file wifi-spectrum-value-helper.cc.

References ns3::Integral(), NS_LOG_DEBUG, and NS_LOG_FUNCTION.

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Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateOfdmTxPowerSpectralDensity	(	uint32_t	centerFrequency,
		uint32_t	channelWidth,
		double	txPowerW
	)

static

Create a transmit power spectral density corresponding to OFDM (802.11a/g).

Channel width may vary between 20, 10, and 5 MHz.

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)
txPowerW	transmit power (W) to allocate

Definition at line 202 of file wifi-spectrum-value-helper.cc.

References ns3::SpectrumValue::ConstBandsBegin(), ns3::SpectrumModel::GetNumBands(), GetSpectrumModel(), ns3::SpectrumValue::GetSpectrumModel(), ns3::Integral(), NS_ASSERT_MSG, NS_FATAL_ERROR, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::SpectrumValue::ValuesBegin().

Referenced by ns3::SpectrumWifiPhy::GetTxPowerSpectralDensity().

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Ptr< SpectrumValue > ns3::WifiSpectrumValueHelper::CreateRfFilter	(	uint32_t	centerFrequency,
		uint32_t	channelWidth
	)

static

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)

Returns: a pointer to a SpectrumValue representing the RF filter applied to an received power spectral density

Definition at line 333 of file wifi-spectrum-value-helper.cc.

References ns3::SpectrumValue::ConstBandsBegin(), ns3::SpectrumModel::GetNumBands(), GetSpectrumModel(), ns3::SpectrumValue::GetSpectrumModel(), NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::SpectrumValue::ValuesBegin().

Referenced by ns3::SpectrumWifiPhy::StartRx().

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Ptr< SpectrumModel > ns3::WifiSpectrumValueHelper::GetSpectrumModel	(	uint32_t	centerFrequency,
		uint32_t	channelWidth
	)

static

Return a SpectrumModel instance corresponding to the center frequency and channel width.

The model includes +/- 10 MHz of guard bands (i.e. the model will span (channelWidth + 20) MHz of bandwidth).

Parameters

centerFrequency	center frequency (MHz)
channelWidth	channel width (MHz)

Returns: the static SpectrumModel instance corresponding to the given carrier frequency and channel width configuration.

Definition at line 57 of file wifi-spectrum-value-helper.cc.

References f(), ns3::BandInfo::fc, ns3::BandInfo::fh, ns3::BandInfo::fl, ns3::SpectrumModel::GetUid(), NS_ASSERT, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

Referenced by CreateDsssTxPowerSpectralDensity(), CreateHtOfdmTxPowerSpectralDensity(), CreateNoisePowerSpectralDensity(), CreateOfdmTxPowerSpectralDensity(), CreateRfFilter(), ns3::SpectrumWifiPhy::DoChannelSwitch(), ns3::SpectrumWifiPhy::DoFrequencySwitch(), and ns3::SpectrumWifiPhy::GetRxSpectrumModel().

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

src/spectrum/model/wifi-spectrum-value-helper.h
src/spectrum/model/wifi-spectrum-value-helper.cc

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation