A Discrete-Event Network Simulator
API
tv-trans-example.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2014 University of Washington
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Benjamin Cizdziel <ben.cizdziel@gmail.com>
19  */
20 
21 #include <iostream>
22 #include <stdlib.h>
23 #include <ns3/core-module.h>
24 #include <ns3/mobility-module.h>
25 #include <ns3/spectrum-helper.h>
26 #include <ns3/spectrum-analyzer-helper.h>
27 #include <ns3/tv-spectrum-transmitter-helper.h>
28 
29 using namespace ns3;
30 
42 int main (int argc, char** argv)
43 {
45  cmd.Parse (argc, argv);
46 
47  /* nodes and positions */
48  NodeContainer tvTransmitterNodes;
49  NodeContainer spectrumAnalyzerNodes;
50  NodeContainer allNodes;
51  tvTransmitterNodes.Create (2);
52  spectrumAnalyzerNodes.Create (1);
53  allNodes.Add (tvTransmitterNodes);
54  allNodes.Add (spectrumAnalyzerNodes);
56  Ptr<ListPositionAllocator> nodePositionList = CreateObject<ListPositionAllocator> ();
57  nodePositionList->Add (Vector (128000.0, 0.0, 0.0)); // TV Transmitter 1; 128 km away from spectrum analyzer
58  nodePositionList->Add (Vector (0.0, 24000.0, 0.0)); // TV Transmitter 2; 24 km away from spectrum analyzer
59  nodePositionList->Add (Vector (0.0, 0.0, 0.0)); // Spectrum Analyzer
60  mobility.SetPositionAllocator (nodePositionList);
61  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
62  mobility.Install (allNodes);
63 
64  /* channel and propagation */
66  channelHelper.SetChannel ("ns3::MultiModelSpectrumChannel");
67  // constant path loss added just to show capability to set different propagation loss models
68  // FriisSpectrumPropagationLossModel already added by default in SpectrumChannelHelper
69  channelHelper.AddSpectrumPropagationLoss ("ns3::ConstantSpectrumPropagationLossModel");
70  Ptr<SpectrumChannel> channel = channelHelper.Create ();
71 
72  /* TV transmitter setup */
73  TvSpectrumTransmitterHelper tvTransHelper;
74  tvTransHelper.SetChannel (channel);
75  tvTransHelper.SetAttribute ("StartFrequency", DoubleValue (524e6));
76  tvTransHelper.SetAttribute ("ChannelBandwidth", DoubleValue (6e6));
77  tvTransHelper.SetAttribute ("StartingTime", TimeValue (Seconds (0)));
78  tvTransHelper.SetAttribute ("TransmitDuration", TimeValue (Seconds (0.2)));
79  // 22.22 dBm/Hz from 1000 kW ERP transmit power, flat 6 MHz PSD spectrum assumed for this approximation
80  tvTransHelper.SetAttribute ("BasePsd", DoubleValue (22.22));
81  tvTransHelper.SetAttribute ("TvType", EnumValue (TvSpectrumTransmitter::TVTYPE_8VSB));
82  tvTransHelper.SetAttribute ("Antenna", StringValue ("ns3::IsotropicAntennaModel"));
83  tvTransHelper.InstallAdjacent (tvTransmitterNodes);
84 
85  /* frequency range for spectrum analyzer */
86  std::vector<double> freqs;
87  for (int i = 0; i < 200; ++i)
88  {
89  freqs.push_back ((i + 5200) * 1e5);
90  }
91  Ptr<SpectrumModel> spectrumAnalyzerFreqModel = Create<SpectrumModel> (freqs);
92 
93  /* spectrum analyzer setup */
94  SpectrumAnalyzerHelper spectrumAnalyzerHelper;
95  spectrumAnalyzerHelper.SetChannel (channel);
96  spectrumAnalyzerHelper.SetRxSpectrumModel (spectrumAnalyzerFreqModel);
97  spectrumAnalyzerHelper.SetPhyAttribute ("NoisePowerSpectralDensity", DoubleValue (1e-15)); // -120 dBm/Hz
98  spectrumAnalyzerHelper.EnableAsciiAll ("spectrum-analyzer-tv-sim");
99  NetDeviceContainer spectrumAnalyzerDevices = spectrumAnalyzerHelper.Install (spectrumAnalyzerNodes);
100 
101  Simulator::Stop (Seconds (0.4));
102 
103  Simulator::Run ();
104 
106 
107  std::cout << "simulation done!" << std::endl;
108  std::cout << "see spectrum analyzer output file" << std::endl;
109 
110  return 0;
111 }
Class to allow the Spectrum Analysis.
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:73
Hold variables of type string.
Definition: string.h:41
static void Run(void)
Run the simulation.
Definition: simulator.cc:226
cmd
Definition: second.py:35
channel
Definition: third.py:85
mobility
Definition: third.py:101
Hold variables of type enum.
Definition: enum.h:54
AttributeValue implementation for Time.
Definition: nstime.h:1076
holds a vector of ns3::NetDevice pointers
Parse command-line arguments.
Definition: command-line.h:213
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:190
Every class exported by the ns3 library is enclosed in the ns3 namespace.
keep track of a set of node pointers.
void SetChannel(std::string type, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
NetDeviceContainer InstallAdjacent(NodeContainer nodes)
Set up and start the TV Transmitter&#39;s transmission on the spectrum channel.
void AddSpectrumPropagationLoss(std::string name, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
Helper class used to assign positions and mobility models to nodes.
static SpectrumChannelHelper Default()
Setup a default SpectrumChannel.
void Add(NodeContainer other)
Append the contents of another NodeContainer to the end of this container.
static void Stop(void)
Tell the Simulator the calling event should be the last one executed.
Definition: simulator.cc:234
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1014
Helper class which uses TvSpectrumTransmitter class to create customizable TV transmitter(s) that tra...
void Add(Vector v)
Add a position to the list of positions.
void SetChannel(Ptr< SpectrumChannel > channel)
Set the SpectrumChannel that will be used by SpectrumPhy instances created by this helper...
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Setup a SpectrumChannel.
This class can be used to hold variables of floating point type such as &#39;double&#39; or &#39;float&#39;...
Definition: double.h:41
void SetAttribute(std::string name, const AttributeValue &val)
Set attribute for each TvSpectrumTransmitter instance to be created.
void SetChannel(Ptr< SpectrumChannel > c)
Set the spectrum channel for the device(s) to transmit on.
Ptr< SpectrumChannel > Create(void) const