This example shows how to configure the 3GPP channel model classes to compute the SNR between two nodes. More...

#include "ns3/channel-condition-model.h"
#include "ns3/constant-position-mobility-model.h"
#include "ns3/core-module.h"
#include "ns3/lte-spectrum-value-helper.h"
#include "ns3/mobility-model.h"
#include "ns3/node-container.h"
#include "ns3/node.h"
#include "ns3/spectrum-signal-parameters.h"
#include "ns3/three-gpp-channel-model.h"
#include "ns3/three-gpp-propagation-loss-model.h"
#include "ns3/three-gpp-spectrum-propagation-loss-model.h"
#include "ns3/uniform-planar-array.h"
#include <fstream>

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Classes
struct	ComputeSnrParams
	A structure that holds the parameters for the ComputeSnr function. More...

Functions
static void	ComputeSnr (const ComputeSnrParams &params)
	Compute the average SNR.
static void	DoBeamforming (Ptr< MobilityModel > txMob, Ptr< PhasedArrayModel > thisAntenna, Ptr< MobilityModel > rxMob)
	Perform the beamforming using the DFT beamforming method.

Variables
static Ptr< ThreeGppPropagationLossModel >	m_propagationLossModel
	the PropagationLossModel object
static Ptr< ThreeGppSpectrumPropagationLossModel >	m_spectrumLossModel
	the SpectrumPropagationLossModel object

Detailed Description

This example shows how to configure the 3GPP channel model classes to compute the SNR between two nodes.

The simulation involves two static nodes which are placed at a certain distance from each other and communicate through a wireless channel at 2 GHz with a bandwidth of 18 MHz. The default propagation environment is 3D-urban macro (UMa), and it can be configured changing the value of the string "scenario". Each node hosts has an antenna array with 4 antenna elements.

Usage

$ ./ns3 run "three-gpp-channel-example [Program Options]"

Program Options

--frequency: Operating frequency in Hz [2.125e+09]
--txPow: TX power in dBm [49]
--noiseFigure: Noise figure in dB [9]
--distance: Distance between TX and RX nodes in meters [10]
--simTime: Simulation time in milliseconds [1000]
--timeRes: Time resolution in milliseconds [10]
--scenario: 3GPP propagation scenario [UMa]

Definition in file three-gpp-channel-example.cc.

Function Documentation

◆ ComputeSnr()

void ComputeSnr ( const ComputeSnrParams & params )

static

Compute the average SNR.

Parameters

params A structure that holds the parameters that are needed to perform calculations in ComputeSnr

Definition at line 110 of file three-gpp-channel-example.cc.

References ns3::Create(), ns3::LteSpectrumValueHelper::CreateNoisePowerSpectralDensity(), ns3::LteSpectrumValueHelper::CreateTxPowerSpectralDensity(), ns3::Time::GetSeconds(), m_propagationLossModel, m_spectrumLossModel, ns3::Simulator::Now(), NS_ASSERT_MSG, NS_LOG_DEBUG, and ns3::Sum().

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◆ DoBeamforming()

void DoBeamforming	(	Ptr< MobilityModel >	txMob,
		Ptr< PhasedArrayModel >	thisAntenna,
		Ptr< MobilityModel >	rxMob )

static

Perform the beamforming using the DFT beamforming method.

Parameters

txMob	the mobility model of the node performing the beamforming
thisAntenna	the antenna object associated to thisDevice
rxMob	the mobility model of the node towards which will point the beam

Definition at line 66 of file three-gpp-channel-example.cc.

References ns3::Angles::GetAzimuth(), and ns3::Angles::GetInclination().

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