A Discrete-Event Network Simulator
API
channel-condition-model-test-suite.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2019 SIGNET Lab, Department of Information Engineering,
4  * University of Padova
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19 
20 #include "ns3/log.h"
21 #include "ns3/abort.h"
22 #include "ns3/test.h"
23 #include "ns3/config.h"
24 #include "ns3/double.h"
25 #include "ns3/channel-condition-model.h"
26 #include "ns3/constant-position-mobility-model.h"
27 #include "ns3/simulator.h"
28 #include "ns3/node-container.h"
29 
30 using namespace ns3;
31 
32 NS_LOG_COMPONENT_DEFINE ("ChannelConditionModelsTest");
33 
41 {
42 public:
47 
52 
53 private:
57  virtual void DoRun (void);
58 
66  void EvaluateChannelCondition (Ptr<MobilityModel> a, Ptr<MobilityModel> b);
67 
71  typedef struct
72  {
73  Vector m_positionA;
74  Vector m_positionB;
75  double m_pLos;
77  } TestVector;
78 
81  uint64_t m_numLos;
82  double m_tolerance;
83 };
84 
86  : TestCase ("Test case for the child classes of ThreeGppChannelConditionModel"),
87  m_testVectors (),
88  m_tolerance (2e-3)
89 {
90 }
91 
93 {
94 }
95 
96 void
98 {
100  if (cond->GetLosCondition () == ChannelCondition::LosConditionValue::LOS)
101  {
102  m_numLos++;
103  }
104 }
105 
106 void
108 {
109  // create the test vector
110  TestVector testVector;
111 
112  // tests for the RMa scenario
113  testVector.m_positionA = Vector (0, 0, 35.0);
114  testVector.m_positionB = Vector (10, 0, 1.5);
115  testVector.m_pLos = 1;
116  testVector.m_typeId = ThreeGppRmaChannelConditionModel::GetTypeId ();
117  m_testVectors.Add (testVector);
118 
119  testVector.m_positionA = Vector (0, 0, 35.0);
120  testVector.m_positionB = Vector (100, 0, 1.5);
121  testVector.m_pLos = exp (-(100.0 - 10.0) / 1000.0);
122  testVector.m_typeId = ThreeGppRmaChannelConditionModel::GetTypeId ();
123  m_testVectors.Add (testVector);
124 
125  testVector.m_positionA = Vector (0, 0, 35.0);
126  testVector.m_positionB = Vector (1000, 0, 1.5);
127  testVector.m_pLos = exp (-(1000.0 - 10.0) / 1000.0);
128  testVector.m_typeId = ThreeGppRmaChannelConditionModel::GetTypeId ();
129  m_testVectors.Add (testVector);
130 
131  // tests for the UMa scenario
132  testVector.m_positionA = Vector (0, 0, 25.0);
133  testVector.m_positionB = Vector (18, 0, 1.5);
134  testVector.m_pLos = 1;
135  testVector.m_typeId = ThreeGppUmaChannelConditionModel::GetTypeId ();
136  m_testVectors.Add (testVector);
137 
138  testVector.m_positionA = Vector (0, 0, 25.0);
139  testVector.m_positionB = Vector (50, 0, 1.5);
140  testVector.m_pLos = (18.0 / 50.0 + exp (-50.0 / 63.0) * (1.0 - 18.0 / 50.0)) * (1.0 + 0);
141  testVector.m_typeId = ThreeGppUmaChannelConditionModel::GetTypeId ();
142  m_testVectors.Add (testVector);
143 
144  testVector.m_positionA = Vector (0, 0, 25.0);
145  testVector.m_positionB = Vector (50, 0, 15);
146  testVector.m_pLos = (18.0 / 50.0 + exp (-50.0 / 63.0) * (1.0 - 18.0 / 50.0)) * (1.0 + pow (2.0 / 10.0, 1.5) * 5.0 / 4.0 * pow (50.0 / 100.0, 3) * exp (-50.0 / 150.0));
147  testVector.m_typeId = ThreeGppUmaChannelConditionModel::GetTypeId ();
148  m_testVectors.Add (testVector);
149 
150  testVector.m_positionA = Vector (0, 0, 25.0);
151  testVector.m_positionB = Vector (100, 0, 1.5);
152  testVector.m_pLos = (18.0 / 100.0 + exp (-100.0 / 63.0) * (1.0 - 18.0 / 100.0)) * (1.0 + 0);
153  testVector.m_typeId = ThreeGppUmaChannelConditionModel::GetTypeId ();
154  m_testVectors.Add (testVector);
155 
156  testVector.m_positionA = Vector (0, 0, 25.0);
157  testVector.m_positionB = Vector (100, 0, 15);
158  testVector.m_pLos = (18.0 / 100.0 + exp (-100.0 / 63.0) * (1.0 - 18.0 / 100.0)) * (1.0 + pow (2.0 / 10.0, 1.5) * 5.0 / 4.0 * 1.0 * exp (-100.0 / 150.0));
159  testVector.m_typeId = ThreeGppUmaChannelConditionModel::GetTypeId ();
160  m_testVectors.Add (testVector);
161 
162  // tests for the UMi-Street Canyon scenario
163  testVector.m_positionA = Vector (0, 0, 10.0);
164  testVector.m_positionB = Vector (18, 0, 1.5);
165  testVector.m_pLos = 1;
166  testVector.m_typeId = ThreeGppUmiStreetCanyonChannelConditionModel::GetTypeId ();
167  m_testVectors.Add (testVector);
168 
169  testVector.m_positionA = Vector (0, 0, 10.0);
170  testVector.m_positionB = Vector (50, 0, 1.5);
171  testVector.m_pLos = (18.0 / 50.0 + exp (-50.0 / 36.0) * (1.0 - 18.0 / 50.0));
172  testVector.m_typeId = ThreeGppUmiStreetCanyonChannelConditionModel::GetTypeId ();
173  m_testVectors.Add (testVector);
174 
175  m_testVectors.Add (testVector);
176  testVector.m_positionA = Vector (0, 0, 10.0);
177  testVector.m_positionB = Vector (100, 0, 15);
178  testVector.m_pLos = (18.0 / 100.0 + exp (-100.0 / 36.0) * (1.0 - 18.0 / 100.0));
179  testVector.m_typeId = ThreeGppUmiStreetCanyonChannelConditionModel::GetTypeId ();
180  m_testVectors.Add (testVector);
181 
182  // tests for the Indoor Mixed Office scenario
183  testVector.m_positionA = Vector (0, 0, 2.0);
184  testVector.m_positionB = Vector (1.2, 0, 1.5);
185  testVector.m_pLos = 1;
186  testVector.m_typeId = ThreeGppIndoorMixedOfficeChannelConditionModel::GetTypeId ();
187  m_testVectors.Add (testVector);
188 
189  testVector.m_positionA = Vector (0, 0, 2.0);
190  testVector.m_positionB = Vector (5, 0, 1.5);
191  testVector.m_pLos = exp (-(5.0 - 1.2) / 4.7);
192  testVector.m_typeId = ThreeGppIndoorMixedOfficeChannelConditionModel::GetTypeId ();
193  m_testVectors.Add (testVector);
194 
195  testVector.m_positionA = Vector (0, 0, 2.0);
196  testVector.m_positionB = Vector (10, 0, 1.5);
197  testVector.m_pLos = exp (-(10.0 - 6.5) / 32.6) * 0.32;
198  testVector.m_typeId = ThreeGppIndoorMixedOfficeChannelConditionModel::GetTypeId ();
199  m_testVectors.Add (testVector);
200 
201  // tests for the Indoor Open Office scenario
202  testVector.m_positionA = Vector (0, 0, 3.0);
203  testVector.m_positionB = Vector (5, 0, 1.5);
204  testVector.m_pLos = 1;
205  testVector.m_typeId = ThreeGppIndoorOpenOfficeChannelConditionModel::GetTypeId ();
206  m_testVectors.Add (testVector);
207 
208  testVector.m_positionA = Vector (0, 0, 3.0);
209  testVector.m_positionB = Vector (30, 0, 1.5);
210  testVector.m_pLos = exp (-(30.0 - 5.0) / 70.8);
211  testVector.m_typeId = ThreeGppIndoorOpenOfficeChannelConditionModel::GetTypeId ();
212  m_testVectors.Add (testVector);
213 
214  testVector.m_positionA = Vector (0, 0, 3.0);
215  testVector.m_positionB = Vector (100, 0, 1.5);
216  testVector.m_pLos = exp (-(100.0 - 49.0) / 211.7) * 0.54;
217  testVector.m_typeId = ThreeGppIndoorOpenOfficeChannelConditionModel::GetTypeId ();
218  m_testVectors.Add (testVector);
219 
220  // create the factory for the channel condition models
221  ObjectFactory condModelFactory;
222 
223  // create the two nodes
225  nodes.Create (2);
226 
227  // create the mobility models
228  Ptr<MobilityModel> a = CreateObject<ConstantPositionMobilityModel> ();
229  Ptr<MobilityModel> b = CreateObject<ConstantPositionMobilityModel> ();
230 
231  // aggregate the nodes and the mobility models
232  nodes.Get (0)->AggregateObject (a);
233  nodes.Get (1)->AggregateObject (b);
234 
235  // Get the channel condition multiple times and compute the LOS probability
236  uint32_t numberOfReps = 500000;
237  for (uint32_t i = 0; i < m_testVectors.GetN (); ++i)
238  {
239  testVector = m_testVectors.Get (i);
240 
241  // set the distance between the two nodes
242  a->SetPosition (testVector.m_positionA);
243  b->SetPosition (testVector.m_positionB);
244 
245  // create the channel condition model
246  condModelFactory.SetTypeId (testVector.m_typeId);
247  m_condModel = condModelFactory.Create<ThreeGppChannelConditionModel> ();
248  m_condModel->SetAttribute ("UpdatePeriod", TimeValue (MilliSeconds (9)));
249 
250  m_numLos = 0;
251  for (uint32_t j = 0; j < numberOfReps; j++)
252  {
253  Simulator::Schedule (MilliSeconds (10 * j), &ThreeGppChannelConditionModelTestCase::EvaluateChannelCondition, this, a, b);
254  }
255 
256  Simulator::Run ();
257  Simulator::Destroy ();
258 
259  double resultPlos = double (m_numLos) / double (numberOfReps);
260  NS_LOG_DEBUG (testVector.m_typeId << " a pos " << testVector.m_positionA << " b pos " << testVector.m_positionB << " numLos " << m_numLos << " numberOfReps " << numberOfReps << " resultPlos " << resultPlos << " ref " << testVector.m_pLos);
261  NS_TEST_EXPECT_MSG_EQ_TOL (resultPlos, testVector.m_pLos, m_tolerance, "Got unexpected LOS probability");
262  }
263 }
264 
269 {
270 public:
272 };
273 
275  : TestSuite ("propagation-channel-condition-model", UNIT)
276 {
277  AddTestCase (new ThreeGppChannelConditionModelTestCase, TestCase::QUICK);
278 }
279 
A suite of tests to run.
Definition: test.h:1343
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1078
void SetTypeId(TypeId tid)
Set the TypeId of the Objects to be created by this factory.
encapsulates test code
Definition: test.h:1153
LosConditionValue GetLosCondition() const
Get the LosConditionValue contaning the information about the LOS/NLOS state of the channel...
Struct containing the parameters for each test.
A simple way to store test vectors (for stimulus or from responses)
Definition: test.h:1406
nodes
Definition: first.py:32
Test suite for the channel condition models.
AttributeValue implementation for Time.
Definition: nstime.h:1132
Ptr< Object > Create(void) const
Create an Object instance of the configured TypeId.
void AddTestCase(TestCase *testCase, TestDuration duration=QUICK)
Add an individual child TestCase to this test suite.
Definition: test.cc:299
Base class for the 3GPP channel condition models.
Ptr< ThreeGppChannelConditionModel > m_condModel
the channel condition model
#define NS_TEST_EXPECT_MSG_EQ_TOL(actual, limit, tol, msg)
Test that actual and expected (limit) values are equal to plus or minus some tolerance and report if ...
Definition: test.h:563
uint64_t m_numLos
the number of LOS occurrences
Test case for the 3GPP channel condition models.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
keep track of a set of node pointers.
virtual Ptr< ChannelCondition > GetChannelCondition(Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const override
Retrieve the condition of the channel between a and b.
void SetPosition(const Vector &position)
TypeId m_typeId
the type ID of the channel condition model to be used
virtual void DoRun(void)
Builds the simulation scenario and perform the tests.
Instantiate subclasses of ns3::Object.
void EvaluateChannelCondition(Ptr< MobilityModel > a, Ptr< MobilityModel > b)
Evaluates the channel condition between two nodes by calling the method GetChannelCondition on m_cond...
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition: log.h:273
void SetAttribute(std::string name, const AttributeValue &value)
Set a single attribute, raising fatal errors if unsuccessful.
Definition: object-base.cc:187
a unique identifier for an interface.
Definition: type-id.h:58
static ChannelConditionModelsTestSuite ChannelConditionModelsTestSuite
TestVectors< TestVector > m_testVectors
array containing all the test vectors