A Discrete-Event Network Simulator
API
tv-trans-regional-example.cc
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1/*
2 * Copyright (c) 2014 University of Washington
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 * Author: Benjamin Cizdziel <ben.cizdziel@gmail.com>
18 */
19
20#include <ns3/core-module.h>
21#include <ns3/mobility-module.h>
22#include <ns3/spectrum-analyzer-helper.h>
23#include <ns3/spectrum-helper.h>
24#include <ns3/tv-spectrum-transmitter-helper.h>
25
26#include <iostream>
27#include <stdlib.h>
28
29using namespace ns3;
30
42int
43main(int argc, char** argv)
44{
45 CommandLine cmd(__FILE__);
46 cmd.Parse(argc, argv);
47
48 /* random seed and run number; adjust these to change random draws */
49 RngSeedManager::SetSeed(1);
50 RngSeedManager::SetRun(3);
51
52 /* nodes and positions */
53 NodeContainer spectrumAnalyzerNodes;
54 spectrumAnalyzerNodes.Create(1);
56 Ptr<ListPositionAllocator> nodePositionList = CreateObject<ListPositionAllocator>();
57 Vector coordinates =
58 GeographicPositions::GeographicToCartesianCoordinates(48.86,
59 2.35,
60 0,
61 GeographicPositions::SPHERE);
62 nodePositionList->Add(coordinates); // spectrum analyzer
63 mobility.SetPositionAllocator(nodePositionList);
64 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
65 mobility.Install(spectrumAnalyzerNodes);
66
67 /* channel and propagation */
68 SpectrumChannelHelper channelHelper = SpectrumChannelHelper::Default();
69 channelHelper.SetChannel("ns3::MultiModelSpectrumChannel");
70 Ptr<SpectrumChannel> channel = channelHelper.Create();
71
72 /* TV transmitter setup */
73 TvSpectrumTransmitterHelper tvTransHelper;
74 tvTransHelper.SetChannel(channel);
75 tvTransHelper.SetAttribute("StartingTime", TimeValue(Seconds(0.1)));
76 tvTransHelper.SetAttribute("TransmitDuration", TimeValue(Seconds(0.1)));
77 // 7.96 dBm/Hz from 50 kW ERP transmit power, flat 8 MHz PSD spectrum assumed for this
78 // approximation
79 tvTransHelper.SetAttribute("BasePsd", DoubleValue(7.96));
80 tvTransHelper.SetAttribute("TvType", EnumValue(TvSpectrumTransmitter::TVTYPE_COFDM));
81 tvTransHelper.SetAttribute("Antenna", StringValue("ns3::IsotropicAntennaModel"));
82
83 tvTransHelper.AssignStreams(300);
84 tvTransHelper.CreateRegionalTvTransmitters(TvSpectrumTransmitterHelper::REGION_EUROPE,
85 TvSpectrumTransmitterHelper::DENSITY_MEDIUM,
86 48.86,
87 2.35,
88 0,
89 250000);
90
91 /* frequency range for spectrum analyzer */
92 std::vector<double> freqs;
93 for (int i = 0; i < 6860; i = i + 5)
94 {
95 freqs.push_back((i + 1740) * 1e5);
96 }
97 Ptr<SpectrumModel> spectrumAnalyzerFreqModel = Create<SpectrumModel>(freqs);
98
99 /* spectrum analyzer setup */
100 SpectrumAnalyzerHelper spectrumAnalyzerHelper;
101 spectrumAnalyzerHelper.SetChannel(channel);
102 spectrumAnalyzerHelper.SetRxSpectrumModel(spectrumAnalyzerFreqModel);
103 spectrumAnalyzerHelper.SetPhyAttribute("NoisePowerSpectralDensity",
104 DoubleValue(4.14e-21)); // approx -174 dBm/Hz
105 spectrumAnalyzerHelper.EnableAsciiAll("spectrum-analyzer-tv-sim-regional");
106 NetDeviceContainer spectrumAnalyzerDevices =
107 spectrumAnalyzerHelper.Install(spectrumAnalyzerNodes);
108
109 Simulator::Stop(Seconds(0.4));
110
111 Simulator::Run();
112
113 Simulator::Destroy();
114
115 std::cout << "simulation done!" << std::endl;
116 std::cout << "see spectrum analyzer output file" << std::endl;
117
118 return 0;
119}
Parse command-line arguments.
Definition: command-line.h:232
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition: double.h:42
Hold variables of type enum.
Definition: enum.h:56
Helper class used to assign positions and mobility models to nodes.
holds a vector of ns3::NetDevice pointers
keep track of a set of node pointers.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:78
Class to allow the Spectrum Analysis.
NetDeviceContainer Install(NodeContainer c) const
void SetPhyAttribute(std::string name, const AttributeValue &v)
void SetChannel(Ptr< SpectrumChannel > channel)
Set the SpectrumChannel that will be used by SpectrumPhy instances created by this helper.
void EnableAsciiAll(std::string prefix)
Enable ASCII output.
void SetRxSpectrumModel(Ptr< SpectrumModel > m)
Set the spectrum model used by the created SpectrumAnalyzer instances to represent incoming signals.
Setup a SpectrumChannel.
Ptr< SpectrumChannel > Create() const
void SetChannel(std::string type, Ts &&... args)
Hold variables of type string.
Definition: string.h:56
AttributeValue implementation for Time.
Definition: nstime.h:1423
Helper class which uses TvSpectrumTransmitter class to create customizable TV transmitter(s) that tra...
void SetChannel(Ptr< SpectrumChannel > c)
Set the spectrum channel for the device(s) to transmit on.
int64_t AssignStreams(int64_t streamNum)
Assigns the stream number for the uniform random number generator to use.
void CreateRegionalTvTransmitters(Region region, Density density, double originLatitude, double originLongitude, double maxAltitude, double maxRadius)
Generates and installs (starts transmission on the spectrum channel) a random number of TV transmitte...
void SetAttribute(std::string name, const AttributeValue &val)
Set attribute for each TvSpectrumTransmitter instance to be created.
Vector3D Vector
Vector alias typedef for compatibility with mobility models.
Definition: vector.h:324
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1336
Every class exported by the ns3 library is enclosed in the ns3 namespace.
cmd
Definition: second.py:33
channel
Definition: third.py:81
mobility
Definition: third.py:96