A Discrete-Event Network Simulator
API
wifi-ofdm-vht-validation.cc
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2 /*
3  * This program is free software; you can redistribute it and/or modify
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10  * GNU General Public License for more details.
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14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  *
16  * Author: Sébastien Deronne <sebastien.deronne@gmail.com>
17  */
18 
19 // This example is used to validate Nist, Yans and Table-based error rate models for VHT rates.
20 //
21 // It outputs plots of the Frame Success Rate versus the Signal-to-noise ratio for
22 // Nist, Yans and Table-based error rate models and for every VHT MCS value (MCS 9 is not
23 // included since it is forbidden for 20 MHz channels).
24 
25 #include <fstream>
26 #include <cmath>
27 #include "ns3/gnuplot.h"
28 #include "ns3/command-line.h"
29 #include "ns3/yans-error-rate-model.h"
30 #include "ns3/nist-error-rate-model.h"
31 #include "ns3/table-based-error-rate-model.h"
32 #include "ns3/wifi-tx-vector.h"
33 
34 using namespace ns3;
35 
36 int main (int argc, char *argv[])
37 {
38  uint32_t FrameSize = 1500; //bytes
39  std::ofstream yansfile ("yans-frame-success-rate-ac.plt");
40  std::ofstream nistfile ("nist-frame-success-rate-ac.plt");
41  std::ofstream tablefile ("table-frame-success-rate-ac.plt");
42  std::vector <std::string> modes;
43 
44  modes.push_back ("VhtMcs0");
45  modes.push_back ("VhtMcs1");
46  modes.push_back ("VhtMcs2");
47  modes.push_back ("VhtMcs3");
48  modes.push_back ("VhtMcs4");
49  modes.push_back ("VhtMcs5");
50  modes.push_back ("VhtMcs6");
51  modes.push_back ("VhtMcs7");
52  modes.push_back ("VhtMcs8");
53 
54  CommandLine cmd (__FILE__);
55  cmd.AddValue ("FrameSize", "The frame size in bytes", FrameSize);
56  cmd.Parse (argc, argv);
57 
58  Gnuplot yansplot = Gnuplot ("yans-frame-success-rate-ac.eps");
59  Gnuplot nistplot = Gnuplot ("nist-frame-success-rate-ac.eps");
60  Gnuplot tableplot = Gnuplot ("table-frame-success-rate-ac.eps");
61 
62  Ptr <YansErrorRateModel> yans = CreateObject<YansErrorRateModel> ();
63  Ptr <NistErrorRateModel> nist = CreateObject<NistErrorRateModel> ();
64  Ptr <TableBasedErrorRateModel> table = CreateObject<TableBasedErrorRateModel> ();
65  WifiTxVector txVector;
66 
67  for (uint32_t i = 0; i < modes.size (); i++)
68  {
69  std::cout << modes[i] << std::endl;
70  Gnuplot2dDataset yansdataset (modes[i]);
71  Gnuplot2dDataset nistdataset (modes[i]);
72  Gnuplot2dDataset tabledataset (modes[i]);
73  txVector.SetMode (modes[i]);
74 
75  for (double snr = -5.0; snr <= 30.0; snr += 0.1)
76  {
77  double ps = yans->GetChunkSuccessRate (WifiMode (modes[i]), txVector, std::pow (10.0, snr / 10.0), FrameSize * 8);
78  if (ps < 0.0 || ps > 1.0)
79  {
80  //error
81  exit (1);
82  }
83  yansdataset.Add (snr, ps);
84 
85  ps = nist->GetChunkSuccessRate (WifiMode (modes[i]), txVector, std::pow (10.0, snr / 10.0), FrameSize * 8);
86  if (ps < 0.0 || ps > 1.0)
87  {
88  //error
89  exit (1);
90  }
91  nistdataset.Add (snr, ps);
92 
93  ps = table->GetChunkSuccessRate (WifiMode (modes[i]), txVector, std::pow (10.0, snr / 10.0), FrameSize * 8);
94  if (ps < 0.0 || ps > 1.0)
95  {
96  //error
97  exit (1);
98  }
99  tabledataset.Add (snr, ps);
100  }
101 
102  yansplot.AddDataset (yansdataset);
103  nistplot.AddDataset (nistdataset);
104  tableplot.AddDataset (tabledataset);
105  }
106 
107  yansplot.SetTerminal ("postscript eps color enh \"Times-BoldItalic\"");
108  yansplot.SetLegend ("SNR(dB)", "Frame Success Rate");
109  yansplot.SetExtra ("set xrange [-5:55]\n\
110 set yrange [0:1]\n\
111 set style line 1 linewidth 5\n\
112 set style line 2 linewidth 5\n\
113 set style line 3 linewidth 5\n\
114 set style line 4 linewidth 5\n\
115 set style line 5 linewidth 5\n\
116 set style line 6 linewidth 5\n\
117 set style line 7 linewidth 5\n\
118 set style line 8 linewidth 5\n\
119 set style line 9 linewidth 5\n\
120 set style increment user");
121  yansplot.GenerateOutput (yansfile);
122  yansfile.close ();
123 
124  nistplot.SetTerminal ("postscript eps color enh \"Times-BoldItalic\"");
125  nistplot.SetLegend ("SNR(dB)", "Frame Success Rate");
126  nistplot.SetExtra ("set xrange [-5:55]\n\
127 set yrange [0:1]\n\
128 set style line 1 linewidth 5\n\
129 set style line 2 linewidth 5\n\
130 set style line 3 linewidth 5\n\
131 set style line 4 linewidth 5\n\
132 set style line 5 linewidth 5\n\
133 set style line 6 linewidth 5\n\
134 set style line 7 linewidth 5\n\
135 set style line 8 linewidth 5\n\
136 set style line 9 linewidth 5\n\
137 set style increment user");
138 
139  nistplot.GenerateOutput (nistfile);
140  nistfile.close ();
141 
142  tableplot.SetTerminal ("postscript eps color enh \"Times-BoldItalic\"");
143  tableplot.SetLegend ("SNR(dB)", "Frame Success Rate");
144  tableplot.SetExtra ("set xrange [-5:55]\n\
145 set yrange [0:1]\n\
146 set style line 1 linewidth 5\n\
147 set style line 2 linewidth 5\n\
148 set style line 3 linewidth 5\n\
149 set style line 4 linewidth 5\n\
150 set style line 5 linewidth 5\n\
151 set style line 6 linewidth 5\n\
152 set style line 7 linewidth 5\n\
153 set style line 8 linewidth 5\n\
154 set style line 9 linewidth 5\n\
155 set style increment user");
156 
157  tableplot.GenerateOutput (tablefile);
158  tablefile.close ();
159 }
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:73
This class mimics the TXVECTOR which is to be passed to the PHY in order to define the parameters whi...
Class to represent a 2D points plot.
Definition: gnuplot.h:117
void AddDataset(const GnuplotDataset &dataset)
Definition: gnuplot.cc:756
cmd
Definition: second.py:35
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
Definition: wifi-mode.h:47
a simple class to generate gnuplot-ready plotting commands from a set of datasets.
Definition: gnuplot.h:371
double GetChunkSuccessRate(WifiMode mode, const WifiTxVector &txVector, double snr, uint64_t nbits, uint8_t numRxAntennas=1, WifiPpduField field=WIFI_PPDU_FIELD_DATA, uint16_t staId=SU_STA_ID) const
This method returns the probability that the given &#39;chunk&#39; of the packet will be successfully receive...
void GenerateOutput(std::ostream &os)
Writes gnuplot commands and data values to a single output stream.
Definition: gnuplot.cc:762
Parse command-line arguments.
Definition: command-line.h:227
void SetLegend(const std::string &xLegend, const std::string &yLegend)
Definition: gnuplot.cc:736
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void SetExtra(const std::string &extra)
Definition: gnuplot.cc:743
void SetTerminal(const std::string &terminal)
Definition: gnuplot.cc:724