A Discrete-Event Network Simulator
API
lte-test-fdbet-ff-mac-scheduler.cc
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1 /*
2  * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
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: Marco Miozzo <marco.miozzo@cttc.es>,
18  * Nicola Baldo <nbaldo@cttc.es>
19  * Dizhi Zhou <dizhi.zhou@gmail.com>
20  */
21 
22 #include "lte-test-fdbet-ff-mac-scheduler.h"
23 
24 #include "ns3/double.h"
25 #include "ns3/radio-bearer-stats-calculator.h"
26 #include "ns3/string.h"
27 #include <ns3/boolean.h>
28 #include <ns3/constant-position-mobility-model.h>
29 #include <ns3/enum.h>
30 #include <ns3/eps-bearer.h>
31 #include <ns3/ff-mac-scheduler.h>
32 #include <ns3/log.h>
33 #include <ns3/lte-enb-net-device.h>
34 #include <ns3/lte-enb-phy.h>
35 #include <ns3/lte-helper.h>
36 #include <ns3/lte-ue-net-device.h>
37 #include <ns3/lte-ue-phy.h>
38 #include <ns3/lte-ue-rrc.h>
39 #include <ns3/mobility-helper.h>
40 #include <ns3/net-device-container.h>
41 #include <ns3/node-container.h>
42 #include <ns3/object.h>
43 #include <ns3/packet.h>
44 #include <ns3/ptr.h>
45 #include <ns3/simulator.h>
46 #include <ns3/spectrum-error-model.h>
47 #include <ns3/spectrum-interference.h>
48 #include <ns3/test.h>
49 
50 #include <iostream>
51 #include <sstream>
52 #include <string>
53 
54 using namespace ns3;
55 
56 NS_LOG_COMPONENT_DEFINE("LenaTestFdBetFfMacScheduler");
57 
58 LenaTestFdBetFfMacSchedulerSuite::LenaTestFdBetFfMacSchedulerSuite()
59  : TestSuite("lte-fdbet-ff-mac-scheduler", SYSTEM)
60 {
61  NS_LOG_INFO("creating LenaTestFdBetFfMacSchedulerSuite");
62 
63  bool errorModel = false;
64 
65  // Test Case 1: AMC works in FDBET
66 
67  // Note: here the MCS is calculated by the wideband CQI
68 
69  // DOWNLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
70  // 1 user -> 24 PRB at Itbs 26 -> 2196 -> 2196000 bytes/sec
71  // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
72  // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
73  // 12 users -> 2 PRB at Itbs 26 -> 185 -> 185000 bytes/sec
74  // UPLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
75  // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 bytes/sec
76  // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
77  // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
78  // after the patch enforcing min 3 PRBs per UE:
79  // 12 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/12 UE/TTI -> 184670 bytes/sec
80  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 0, 2196000, 2292000, errorModel),
81  TestCase::EXTENSIVE);
82  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 0, 749000, 749000, errorModel),
83  TestCase::EXTENSIVE);
84  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 0, 373000, 373000, errorModel),
85  TestCase::EXTENSIVE);
86  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 0, 185000, 184670, errorModel),
87  TestCase::EXTENSIVE);
88 
89  // DOWNLINK - DISTANCE 4800 -> MCS 22 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
90  // 1 user -> 24 PRB at Itbs 20 -> 1383 -> 1383000 bytes/sec
91  // 3 users -> 8 PRB at Itbs 20 -> 469 -> 469000 bytes/sec
92  // 6 users -> 4 PRB at Itbs 20 -> 233 -> 233000 bytes/sec
93  // 12 users -> 2 PRB at Itbs 20 -> 113 -> 113000 bytes/sec
94  // UPLINK - DISTANCE 4800 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
95  // 1 user -> 25 PRB at Itbs 13 -> 807 -> 807000 bytes/sec
96  // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
97  // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
98  // after the patch enforcing min 3 PRBs per UE:
99  // 12 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/12 UE/TTI -> 62000 bytes/sec
100  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 4800, 1383000, 807000, errorModel),
101  TestCase::EXTENSIVE);
102  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 4800, 469000, 253000, errorModel),
103  TestCase::EXTENSIVE);
104  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 4800, 233500, 125000, errorModel),
105  TestCase::EXTENSIVE);
106  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 4800, 113000, 62000, errorModel),
107  TestCase::EXTENSIVE);
108 
109  // DOWNLINK - DISTANCE 6000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
110  // 1 user -> 24 PRB at Itbs 18 -> 1191 -> 1191000 byte/sec
111  // 3 users -> 8 PRB at Itbs 18 -> 389 -> 389000 bytes/sec
112  // 6 users -> 4 PRB at Itbs 18 -> 193 -> 193000 bytes/sec
113  // 12 users -> 2 PRB at Itbs 18 -> 97 -> 97000 bytes/sec
114  // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
115  // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 bytes/sec
116  // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 bytes/sec
117  // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 bytes/sec
118  // 12 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/12 UE/TTI -> 48667 bytes/sec
119  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 6000, 1191000, 621000, errorModel),
120  TestCase::EXTENSIVE);
121  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 6000, 389000, 201000, errorModel),
122  TestCase::EXTENSIVE);
123  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 6000, 193000, 97000, errorModel),
124  TestCase::EXTENSIVE);
125  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 6000, 97000, 48667, errorModel),
126  TestCase::EXTENSIVE);
127 
128  // DOWNLINK - DISTANCE 10000 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
129  // 1 user -> 24 PRB at Itbs 13 -> 775 -> 775000 byte/sec
130  // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
131  // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
132  // 12 users -> 2 PRB at Itbs 13 -> 61 -> 61000 bytes/sec
133  // UPLINK - DISTANCE 9000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
134  // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
135  // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
136  // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
137  // after the patch enforcing min 3 PRBs per UE:
138  // 12 users -> 3 PRB at Itbs 8 -> 49 bytes * 8/12 UE/TTI -> 32667 bytes/sec
139  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 10000, 775000, 421000, errorModel),
140  TestCase::EXTENSIVE);
141  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 10000, 253000, 137000, errorModel),
142  TestCase::EXTENSIVE);
143  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 10000, 125000, 67000, errorModel),
144  TestCase::EXTENSIVE);
145  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 10000, 61000, 32667, errorModel),
146  TestCase::EXTENSIVE);
147 
148  // DOWNLINK - DISTANCE 20000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
149  // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
150  // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
151  // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
152  // 12 users -> 2 PRB at Itbs 8 -> 32 -> 32000 bytes/sec
153  // UPLINK - DISTANCE 20000 -> MCS 2 -> Itbs 2 (from table 7.1.7.2.1-1 of 36.213)
154  // 1 user -> 25 PRB at Itbs 2 -> 137 -> 137000 bytes/sec
155  // 3 users -> 8 PRB at Itbs 2 -> 41 -> 41000 bytes/sec
156  // 6 users -> 4 PRB at Itbs 2 -> 22 -> 22000 bytes/sec
157  // after the patch enforcing min 3 PRBs per UE:
158  // 12 users -> 3 PRB at Itbs 2 -> 18 bytes * 8/12 UE/TTI -> 12000 bytes/sec
159  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 20000, 421000, 137000, errorModel),
160  TestCase::EXTENSIVE);
161  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 20000, 137000, 41000, errorModel),
162  TestCase::EXTENSIVE);
163  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 20000, 67000, 22000, errorModel),
164  TestCase::EXTENSIVE);
165  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 20000, 32000, 12000, errorModel),
166  TestCase::EXTENSIVE);
167 
168  // DOWNLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
169  // UPLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
170  AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(1, 100000, 0, 0, errorModel), TestCase::QUICK);
171 
172  // Test Case 2: fairness check
173 
174  std::vector<double> dist;
175  dist.push_back(0); // User 0 distance --> MCS 28
176  dist.push_back(4800); // User 1 distance --> MCS 22
177  dist.push_back(6000); // User 2 distance --> MCS 14
178  dist.push_back(10000); // User 3 distance --> MCS 8
179  dist.push_back(20000); // User 4 distance --> MCS 8
180  std::vector<uint32_t> estAchievableRateDl;
181  estAchievableRateDl.push_back(2196000);
182  estAchievableRateDl.push_back(1383000);
183  estAchievableRateDl.push_back(775000);
184  estAchievableRateDl.push_back(421000);
185  estAchievableRateDl.push_back(421000);
186  std::vector<uint32_t> estThrFdBetUl;
187  estThrFdBetUl.push_back(469000); // User 0 estimated TTI throughput from FDBET
188  estThrFdBetUl.push_back(157000); // User 1 estimated TTI throughput from FDBET
189  estThrFdBetUl.push_back(125000); // User 2 estimated TTI throughput from FDBET
190  estThrFdBetUl.push_back(85000); // User 3 estimated TTI throughput from FDBET
191  estThrFdBetUl.push_back(26000); // User 4 estimated TTI throughput from FDBET
192  AddTestCase(
193  new LenaFdBetFfMacSchedulerTestCase2(dist, estAchievableRateDl, estThrFdBetUl, errorModel),
194  TestCase::QUICK);
195 }
196 
201 static LenaTestFdBetFfMacSchedulerSuite lenaTestFdBetFfMacSchedulerSuite;
202 
203 // --------------- T E S T - C A S E # 1 ------------------------------
204 
205 std::string
206 LenaFdBetFfMacSchedulerTestCase1::BuildNameString(uint16_t nUser, double dist)
207 {
208  std::ostringstream oss;
209  oss << nUser << " UEs, distance " << dist << " m";
210  return oss.str();
211 }
212 
213 LenaFdBetFfMacSchedulerTestCase1::LenaFdBetFfMacSchedulerTestCase1(uint16_t nUser,
214  double dist,
215  double thrRefDl,
216  double thrRefUl,
217  bool errorModelEnabled)
218  : TestCase(BuildNameString(nUser, dist)),
219  m_nUser(nUser),
220  m_dist(dist),
221  m_thrRefDl(thrRefDl),
222  m_thrRefUl(thrRefUl),
223  m_errorModelEnabled(errorModelEnabled)
224 {
225 }
226 
227 LenaFdBetFfMacSchedulerTestCase1::~LenaFdBetFfMacSchedulerTestCase1()
228 {
229 }
230 
231 void
232 LenaFdBetFfMacSchedulerTestCase1::DoRun()
233 {
234  if (!m_errorModelEnabled)
235  {
236  Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
237  Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
238  }
239 
240  Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(true));
241  Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
242  StringValue(CreateTempDirFilename("DlMacStats.txt")));
243  Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
244  StringValue(CreateTempDirFilename("UlMacStats.txt")));
245  Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
246  StringValue(CreateTempDirFilename("DlRlcStats.txt")));
247  Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
248  StringValue(CreateTempDirFilename("UlRlcStats.txt")));
249 
254  Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
255 
256  lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
257 
258  // Create Nodes: eNodeB and UE
259  NodeContainer enbNodes;
260  NodeContainer ueNodes;
261  enbNodes.Create(1);
262  ueNodes.Create(m_nUser);
263 
264  // Install Mobility Model
265  MobilityHelper mobility;
266  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
267  mobility.Install(enbNodes);
268  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
269  mobility.Install(ueNodes);
270 
271  // Create Devices and install them in the Nodes (eNB and UE)
272  NetDeviceContainer enbDevs;
273  NetDeviceContainer ueDevs;
274  lteHelper->SetSchedulerType("ns3::FdBetFfMacScheduler");
275  lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
276  enbDevs = lteHelper->InstallEnbDevice(enbNodes);
277  ueDevs = lteHelper->InstallUeDevice(ueNodes);
278 
279  // Attach a UE to a eNB
280  lteHelper->Attach(ueDevs, enbDevs.Get(0));
281 
282  // Activate an EPS bearer
283  EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
284  EpsBearer bearer(q);
285  lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
286 
287  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
288  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
289  enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
290  enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
291 
292  // Set UEs' position and power
293  for (int i = 0; i < m_nUser; i++)
294  {
295  Ptr<ConstantPositionMobilityModel> mm =
296  ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
297  mm->SetPosition(Vector(m_dist, 0.0, 0.0));
298  Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
299  Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
300  uePhy->SetAttribute("TxPower", DoubleValue(23.0));
301  uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
302  }
303 
304  double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
305  double statsDuration = 0.6;
306  double tolerance = 0.1;
307  Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
308 
309  lteHelper->EnableMacTraces();
310  lteHelper->EnableRlcTraces();
311  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
312  rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
313  rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
314 
315  Simulator::Run();
316 
320  NS_LOG_INFO("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
321  std::vector<uint64_t> dlDataRxed;
322  for (int i = 0; i < m_nUser; i++)
323  {
324  // get the imsi
325  uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
326  // get the lcId
327  uint8_t lcId = 3;
328  dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
329  NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at(i)
330  << " thr " << (double)dlDataRxed.at(i) / statsDuration << " ref "
331  << m_thrRefDl);
332  }
339  for (int i = 0; i < m_nUser; i++)
340  {
341  NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
342  m_thrRefDl,
343  m_thrRefDl * tolerance,
344  " Unfair Throughput!");
345  }
346 
350  NS_LOG_INFO("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
351  std::vector<uint64_t> ulDataRxed;
352  for (int i = 0; i < m_nUser; i++)
353  {
354  // get the imsi
355  uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
356  // get the lcId
357  uint8_t lcId = 3;
358  ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
359  NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at(i)
360  << " thr " << (double)ulDataRxed.at(i) / statsDuration << " ref "
361  << m_thrRefUl);
362  }
369  for (int i = 0; i < m_nUser; i++)
370  {
371  NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
372  m_thrRefUl,
373  m_thrRefUl * tolerance,
374  " Unfair Throughput!");
375  }
376  Simulator::Destroy();
377 }
378 
379 // --------------- T E S T - C A S E # 2 ------------------------------
380 
381 std::string
382 LenaFdBetFfMacSchedulerTestCase2::BuildNameString(uint16_t nUser, std::vector<double> dist)
383 {
384  std::ostringstream oss;
385  oss << "distances (m) = [ ";
386  for (auto it = dist.begin(); it != dist.end(); ++it)
387  {
388  oss << *it << " ";
389  }
390  oss << "]";
391  return oss.str();
392 }
393 
394 LenaFdBetFfMacSchedulerTestCase2::LenaFdBetFfMacSchedulerTestCase2(
395  std::vector<double> dist,
396  std::vector<uint32_t> achievableRateDl,
397  std::vector<uint32_t> estThrFdBetUl,
398  bool errorModelEnabled)
399  : TestCase(BuildNameString(dist.size(), dist)),
400  m_nUser(dist.size()),
401  m_dist(dist),
402  m_achievableRateDl(achievableRateDl),
403  m_estThrFdBetUl(estThrFdBetUl),
404  m_errorModelEnabled(errorModelEnabled)
405 {
406 }
407 
408 LenaFdBetFfMacSchedulerTestCase2::~LenaFdBetFfMacSchedulerTestCase2()
409 {
410 }
411 
412 void
413 LenaFdBetFfMacSchedulerTestCase2::DoRun()
414 {
415  NS_LOG_FUNCTION(this);
416 
417  if (!m_errorModelEnabled)
418  {
419  Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
420  Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
421  }
422  Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(false));
423  Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
424  StringValue(CreateTempDirFilename("DlMacStats.txt")));
425  Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
426  StringValue(CreateTempDirFilename("UlMacStats.txt")));
427  Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
428  StringValue(CreateTempDirFilename("DlRlcStats.txt")));
429  Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
430  StringValue(CreateTempDirFilename("UlRlcStats.txt")));
431 
436  Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
437 
438  lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
439 
440  // Create Nodes: eNodeB and UE
441  NodeContainer enbNodes;
442  NodeContainer ueNodes;
443  enbNodes.Create(1);
444  ueNodes.Create(m_nUser);
445 
446  // Install Mobility Model
447  MobilityHelper mobility;
448  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
449  mobility.Install(enbNodes);
450  mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
451  mobility.Install(ueNodes);
452 
453  // Create Devices and install them in the Nodes (eNB and UE)
454  NetDeviceContainer enbDevs;
455  NetDeviceContainer ueDevs;
456  lteHelper->SetSchedulerType("ns3::FdBetFfMacScheduler");
457  lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
458  enbDevs = lteHelper->InstallEnbDevice(enbNodes);
459  ueDevs = lteHelper->InstallUeDevice(ueNodes);
460 
461  // Attach a UE to a eNB
462  lteHelper->Attach(ueDevs, enbDevs.Get(0));
463 
464  // Activate an EPS bearer
465  EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
466  EpsBearer bearer(q);
467  lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
468 
469  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
470  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
471  enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
472  enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
473 
474  // Set UEs' position and power
475  for (int i = 0; i < m_nUser; i++)
476  {
477  Ptr<ConstantPositionMobilityModel> mm =
478  ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
479  mm->SetPosition(Vector(m_dist.at(i), 0.0, 0.0));
480  Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
481  Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
482  uePhy->SetAttribute("TxPower", DoubleValue(23.0));
483  uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
484  }
485 
486  double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
487  double statsDuration = 0.4;
488  double tolerance = 0.1;
489  Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
490 
491  lteHelper->EnableMacTraces();
492  lteHelper->EnableRlcTraces();
493  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
494  rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
495  rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
496 
497  Simulator::Run();
498 
499  NS_LOG_INFO("DL - Test with " << m_nUser << " user(s)");
500  std::vector<uint64_t> dlDataRxed;
501  double totalData = 0;
502  double estTotalThr = 0;
503  double estUeThr = 0;
504  for (int i = 0; i < m_nUser; i++)
505  {
506  // get the imsi
507  uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
508  // get the lcId
509  uint8_t lcId = 3;
510  dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
511  totalData += (double)dlDataRxed.at(i);
512  estTotalThr += 1 / m_achievableRateDl.at(i);
513  NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " imsi " << imsi << " bytes rxed "
514  << (double)dlDataRxed.at(i) << " thr "
515  << (double)dlDataRxed.at(i) / statsDuration << " ref " << m_nUser);
516  }
517 
518  estTotalThr = m_nUser * (1 / estTotalThr);
519  estUeThr = estTotalThr / m_nUser;
524  for (int i = 0; i < m_nUser; i++)
525  {
526  double thrRatio = 1.0 / m_nUser;
527  double estThrRatio = (double)dlDataRxed.at(i) / totalData;
528  NS_LOG_INFO("\tUser " << i << " thrRatio " << thrRatio << " estThrRatio " << estThrRatio);
529  NS_TEST_ASSERT_MSG_EQ_TOL(estThrRatio, thrRatio, tolerance, " Unfair Throughput!");
530  NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
531  estUeThr,
532  estUeThr * tolerance,
533  " Unfair Throughput!");
534  }
535 
540  NS_LOG_INFO("UL - Test with " << m_nUser);
541  std::vector<uint64_t> ulDataRxed;
542  for (int i = 0; i < m_nUser; i++)
543  {
544  // get the imsi
545  uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
546  // get the lcId
547  uint8_t lcId = 3;
548  ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
549  NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " bytes rxed "
550  << (double)ulDataRxed.at(i) << " thr "
551  << (double)ulDataRxed.at(i) / statsDuration << " ref "
552  << (double)m_estThrFdBetUl.at(i));
553  NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
554  (double)m_estThrFdBetUl.at(i),
555  (double)m_estThrFdBetUl.at(i) * tolerance,
556  " Unfair Throughput!");
557  }
558  Simulator::Destroy();
559 }
LenaFdBetFfMacSchedulerTestCase1
This system test program creates different test cases with a single eNB and several UEs,...
Definition: lte-test-fdbet-ff-mac-scheduler.h:42
LenaFdBetFfMacSchedulerTestCase1::BuildNameString
static std::string BuildNameString(uint16_t nUser, double dist)
Builds the test name string based on provided parameter values.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:206
LenaFdBetFfMacSchedulerTestCase1::LenaFdBetFfMacSchedulerTestCase1
LenaFdBetFfMacSchedulerTestCase1(uint16_t nUser, double dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
Constructor.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:213
LenaFdBetFfMacSchedulerTestCase1::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:232
LenaFdBetFfMacSchedulerTestCase1::m_dist
double m_dist
distance between the nodes
Definition: lte-test-fdbet-ff-mac-scheduler.h:71
LenaFdBetFfMacSchedulerTestCase2
Test case is similar to the one defined in LenaFdBetFfMacSchedulerTestCase1, with the difference that...
Definition: lte-test-fdbet-ff-mac-scheduler.h:85
LenaFdBetFfMacSchedulerTestCase2::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:413
LenaFdBetFfMacSchedulerTestCase2::m_errorModelEnabled
bool m_errorModelEnabled
specifies whether the error model is enabled
Definition: lte-test-fdbet-ff-mac-scheduler.h:115
LenaFdBetFfMacSchedulerTestCase2::m_dist
std::vector< double > m_dist
distance between the nodes
Definition: lte-test-fdbet-ff-mac-scheduler.h:112
LenaFdBetFfMacSchedulerTestCase2::BuildNameString
static std::string BuildNameString(uint16_t nUser, std::vector< double > dist)
Builds the test name string based on provided parameter values.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:382
LenaFdBetFfMacSchedulerTestCase2::m_achievableRateDl
std::vector< uint32_t > m_achievableRateDl
DL achievable rate.
Definition: lte-test-fdbet-ff-mac-scheduler.h:113
LenaFdBetFfMacSchedulerTestCase2::m_estThrFdBetUl
std::vector< uint32_t > m_estThrFdBetUl
estimated throughput FDBET UL
Definition: lte-test-fdbet-ff-mac-scheduler.h:114
LenaFdBetFfMacSchedulerTestCase2::LenaFdBetFfMacSchedulerTestCase2
LenaFdBetFfMacSchedulerTestCase2(std::vector< double > dist, std::vector< uint32_t > achievableRateDl, std::vector< uint32_t > estThrFdBetUl, bool errorModelEnabled)
Constructor.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:394
LenaTestFdBetFfMacSchedulerSuite
Test suite for FDBetFfMacScheduler test case.
Definition: lte-test-fdbet-ff-mac-scheduler.h:125
ns3::ConstantPositionMobilityModel
Mobility model for which the current position does not change once it has been set and until it is se...
Definition: constant-position-mobility-model.h:34
ns3::DoubleValue
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition: double.h:42
ns3::EnumValue
Hold variables of type enum.
Definition: enum.h:62
ns3::EpsBearer
This class contains the specification of EPS Bearers.
Definition: eps-bearer.h:91
ns3::EpsBearer::Qci
Qci
QoS Class Indicator.
Definition: eps-bearer.h:106
ns3::LteEnbNetDevice
The eNodeB device implementation.
Definition: lte-enb-net-device.h:59
ns3::LteEnbNetDevice::GetPhy
Ptr< LteEnbPhy > GetPhy() const
Definition: lte-enb-net-device.cc:197
ns3::LteHelper::GetRlcStats
Ptr< RadioBearerStatsCalculator > GetRlcStats()
Definition: lte-helper.cc:1701
ns3::LteHelper::SetSchedulerAttribute
void SetSchedulerAttribute(std::string n, const AttributeValue &v)
Set an attribute for the scheduler to be created.
Definition: lte-helper.cc:306
ns3::LteHelper::InstallEnbDevice
NetDeviceContainer InstallEnbDevice(NodeContainer c)
Create a set of eNodeB devices.
Definition: lte-helper.cc:485
ns3::LteHelper::SetSchedulerType
void SetSchedulerType(std::string type)
Set the type of scheduler to be used by eNodeB devices.
Definition: lte-helper.cc:292
ns3::LteHelper::Attach
void Attach(NetDeviceContainer ueDevices)
Enables automatic attachment of a set of UE devices to a suitable cell using Idle mode initial cell s...
Definition: lte-helper.cc:1039
ns3::LteHelper::EnableRlcTraces
void EnableRlcTraces()
Enable trace sinks for RLC layer.
Definition: lte-helper.cc:1558
ns3::LteHelper::ActivateDataRadioBearer
void ActivateDataRadioBearer(NetDeviceContainer ueDevices, EpsBearer bearer)
Activate a Data Radio Bearer on a given UE devices (for LTE-only simulation).
Definition: lte-helper.cc:1436
ns3::LteHelper::InstallUeDevice
NetDeviceContainer InstallUeDevice(NodeContainer c)
Create a set of UE devices.
Definition: lte-helper.cc:500
ns3::LteHelper::EnableMacTraces
void EnableMacTraces()
Enable trace sinks for MAC layer.
Definition: lte-helper.cc:1659
ns3::LteUeNetDevice
The LteUeNetDevice class implements the UE net device.
Definition: lte-ue-net-device.h:57
ns3::MobilityHelper
Helper class used to assign positions and mobility models to nodes.
Definition: mobility-helper.h:44
ns3::NetDeviceContainer
holds a vector of ns3::NetDevice pointers
Definition: net-device-container.h:43
ns3::NetDeviceContainer::Get
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr<NetDevice> stored in this container at a given index.
Definition: net-device-container.cc:67
ns3::NodeContainer
keep track of a set of node pointers.
Definition: node-container.h:40
ns3::NodeContainer::Create
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Definition: node-container.cc:84
ns3::NodeContainer::Get
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Definition: node-container.cc:78
ns3::ObjectBase::SetAttribute
void SetAttribute(std::string name, const AttributeValue &value)
Set a single attribute, raising fatal errors if unsuccessful.
Definition: object-base.cc:204
ns3::Object::GetObject
Ptr< T > GetObject() const
Get a pointer to the requested aggregated Object.
Definition: object.h:471
ns3::StringValue
Hold variables of type string.
Definition: string.h:56
ns3::TestCase
encapsulates test code
Definition: test.h:1060
ns3::TestCase::AddTestCase
void AddTestCase(TestCase *testCase, TestDuration duration=QUICK)
Add an individual child TestCase to this test suite.
Definition: test.cc:301
ns3::TestCase::CreateTempDirFilename
std::string CreateTempDirFilename(std::string filename)
Construct the full path to a file in a temporary directory.
Definition: test.cc:438
ns3::TestSuite
A suite of tests to run.
Definition: test.h:1256
ns3::Config::SetDefault
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:890
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
NS_LOG_FUNCTION
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
Definition: log-macros-enabled.h:240
NS_LOG_INFO
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:275
lenaTestFdBetFfMacSchedulerSuite
static LenaTestFdBetFfMacSchedulerSuite lenaTestFdBetFfMacSchedulerSuite
Static variable for test initialization.
Definition: lte-test-fdbet-ff-mac-scheduler.cc:201
NS_TEST_ASSERT_MSG_EQ_TOL
#define NS_TEST_ASSERT_MSG_EQ_TOL(actual, limit, tol, msg)
Test that actual and expected (limit) values are equal to plus or minus some tolerance and report and...
Definition: test.h:337
ns3::Seconds
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1326
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
third.mobility
mobility
Definition: third.py:105