Implements Wifi SpectrumValue for the 2.4 GHz ISM band only, with a 5 MHz spectrum resolution. More...

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

Public Member Functions
virtual	~SpectrumValue5MhzFactory ()=default
	Destructor.

virtual Ptr< SpectrumValue >	CreateConstant (double psd)
	Creates a SpectrumValue instance with a constant value for all frequencies.

virtual Ptr< SpectrumValue >	CreateTxPowerSpectralDensity (double txPower, uint8_t channel)
	Creates a SpectrumValue instance that represents the TX Power Spectral Density of a wifi device corresponding to the provided parameters.

Detailed Description

Implements Wifi SpectrumValue for the 2.4 GHz ISM band only, with a 5 MHz spectrum resolution.

Definition at line 26 of file ism-spectrum-value-helper.h.

Constructor & Destructor Documentation

◆ ~SpectrumValue5MhzFactory()

virtual ns3::SpectrumValue5MhzFactory::~SpectrumValue5MhzFactory ( )

virtualdefault

Destructor.

Member Function Documentation

◆ CreateConstant()

Ptr< SpectrumValue > ns3::SpectrumValue5MhzFactory::CreateConstant ( double psd )

virtual

Creates a SpectrumValue instance with a constant value for all frequencies.

Parameters

psd	the constant value

Returns: a Ptr to a newly created SpectrumValue

Definition at line 46 of file ism-spectrum-value-helper.cc.

References ns3::Create(), and ns3::g_WifiSpectrumModel5Mhz.

Referenced by SpectrumIdealPhyTestCase::DoRun().

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◆ CreateTxPowerSpectralDensity()

Ptr< SpectrumValue > ns3::SpectrumValue5MhzFactory::CreateTxPowerSpectralDensity	(	double	txPower,
		uint8_t	channel )

virtual

Creates a SpectrumValue instance that represents the TX Power Spectral Density of a wifi device corresponding to the provided parameters.

Since the spectrum model has a resolution of 5 MHz, we model the transmitted signal with a constant density over a 20MHz bandwidth centered on the center frequency of the channel. The transmission power outside the transmission power density is calculated considering the transmit spectrum mask, see IEEE Std. 802.11-2007, Annex I. The two bands just outside of the main 20 MHz are allocated power at -28 dB down from the center 20 MHz, and the two bands outside of this are allocated power at -40 dB down (with a total bandwidth of 60 MHz containing non-zero power allocation).

Parameters

txPower	the total TX power in W
channel	the number of the channel (1 <= channel <= 13)

Returns: a Ptr to a newly created SpectrumValue

Definition at line 54 of file ism-spectrum-value-helper.cc.

References ns3::Create(), ns3::g_WifiSpectrumModel5Mhz, and NS_ASSERT.

Referenced by SpectrumIdealPhyTestCase::DoRun(), and ThreeGppSpectrumPropagationLossModelTest::DoRun().