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lte-test-phy-error-model.cc
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1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
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: Marco Miozzo <marco.miozzo@cttc.es>
19  */
20 
21 #include <ns3/object.h>
22 #include <ns3/spectrum-interference.h>
23 #include <ns3/spectrum-error-model.h>
24 #include <ns3/log.h>
25 #include <ns3/test.h>
26 #include <ns3/simulator.h>
27 #include <ns3/packet.h>
28 #include <ns3/ptr.h>
29 #include <iostream>
30 #include <ns3/radio-bearer-stats-calculator.h>
31 #include <ns3/buildings-mobility-model.h>
32 #include <ns3/hybrid-buildings-propagation-loss-model.h>
33 #include <ns3/eps-bearer.h>
34 #include <ns3/node-container.h>
35 #include <ns3/mobility-helper.h>
36 #include <ns3/net-device-container.h>
37 #include <ns3/lte-ue-net-device.h>
38 #include <ns3/lte-enb-net-device.h>
39 #include <ns3/lte-ue-rrc.h>
40 #include <ns3/lte-helper.h>
41 #include <ns3/string.h>
42 #include <ns3/double.h>
43 #include <ns3/lte-enb-phy.h>
44 #include <ns3/lte-ue-phy.h>
45 #include <ns3/config.h>
46 #include <ns3/boolean.h>
47 #include <ns3/enum.h>
48 #include <ns3/unused.h>
49 #include <ns3/ff-mac-scheduler.h>
50 
51 #include "lte-test-phy-error-model.h"
52 
53 NS_LOG_COMPONENT_DEFINE ("LenaTestPhyErrorModel");
54 
55 namespace ns3 {
56 
57 
58 LenaTestPhyErrorModelrSuite::LenaTestPhyErrorModelrSuite ()
59  : TestSuite ("lte-phy-error-model", SYSTEM)
60 {
61  NS_LOG_INFO ("creating LenaTestPhyErrorModelTestCase");
62 
63 
64  // Tests on DL Control Channels (PCFICH+PDDCH)
65  // 1 interfering eNB SINR -2.0 BER 0.007 TB size 217
66  AddTestCase (new LenaDlCtrlPhyErrorModelTestCase (2, 1078, 217, 0.007), TestCase::QUICK);
67  // 2 interfering eNBs SINR -4.0 BER 0.037 TB size 217
68  AddTestCase (new LenaDlCtrlPhyErrorModelTestCase (3, 1040, 217, 0.045), TestCase::EXTENSIVE);
69  // 3 interfering eNBs SINR -6.0 BER 0.21 TB size 133
70  AddTestCase (new LenaDlCtrlPhyErrorModelTestCase (4, 1250, 133, 0.206), TestCase::EXTENSIVE);
71  // 4 interfering eNBs SINR -7.0 BER 0.34 TB size 133
72  AddTestCase (new LenaDlCtrlPhyErrorModelTestCase (5, 1260, 81, 0.343), TestCase::EXTENSIVE);
73 
74  // Tests on DL/UL Data channels (PDSCH, PUSCH)
75  // MCS 2 TB size of 256 bits BER 0.33 SINR -5.51
76  AddTestCase (new LenaDataPhyErrorModelTestCase (4, 1800, 32, 0.33, 50), TestCase::QUICK);
77 // MCS 2 TB size of 528 bits BER 0.11 SINR -5.51
78  AddTestCase (new LenaDataPhyErrorModelTestCase (2, 1800, 66, 0.11, 34), TestCase::EXTENSIVE);
79 // MCS 2 TB size of 1088 bits BER 0.02 SINR -5.51
80  AddTestCase (new LenaDataPhyErrorModelTestCase (1, 1800, 136, 0.02, 16), TestCase::EXTENSIVE);
81  // MCS 12 TB size of 4800 bits BER 0.3 SINR 4.43
82  AddTestCase (new LenaDataPhyErrorModelTestCase (1, 600, 600, 0.3, 48), TestCase::EXTENSIVE);
83 // MCS 12 TB size of 1632 bits BER 0.55 SINR 4.43
84  AddTestCase (new LenaDataPhyErrorModelTestCase (3, 600, 204, 0.55, 52), TestCase::EXTENSIVE);
85 // MCS 16 TB size of 7272 bits (3648 x 3584) BER 0.14 SINR 8.48
86 // BER 0.14 = 1 - ((1-0.075)*(1-0.075))
87  AddTestCase (new LenaDataPhyErrorModelTestCase (1, 470, 781, 0.14, 29), TestCase::EXTENSIVE);
88 
89 
90 
91 }
92 
93 static LenaTestPhyErrorModelrSuite lenaTestPhyErrorModelrSuite;
94 
95 std::string
96 LenaDataPhyErrorModelTestCase::BuildNameString (uint16_t nUser, uint16_t dist)
97 {
98  std::ostringstream oss;
99  oss << nUser << " UEs, distance " << dist << " m";
100  return oss.str ();
101 }
102 
103 LenaDataPhyErrorModelTestCase::LenaDataPhyErrorModelTestCase (uint16_t nUser, uint16_t dist, uint16_t tbSize, double berRef, uint16_t bernQuantile)
104  : TestCase (BuildNameString (nUser, dist)),
105  m_nUser (nUser),
106  m_dist (dist),
107  m_tbSize (tbSize),
108  m_berRef (berRef),
109  m_bernQuantile (bernQuantile)
110 {
111 }
112 
113 LenaDataPhyErrorModelTestCase::~LenaDataPhyErrorModelTestCase ()
114 {
115 }
116 
117 void
118 LenaDataPhyErrorModelTestCase::DoRun (void)
119 {
120 
121  double ber = 0.03;
122  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (ber));
123  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
124  Config::SetDefault ("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue (false));
125  Config::SetDefault ("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue (true));
126  Config::SetDefault ("ns3::RrFfMacScheduler::HarqEnabled", BooleanValue (false));
127 // LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
128 // LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
129 // LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
130 // LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
131 // LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
132 //
133 // LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
134 // LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
135 // LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
136 
137 // LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
138 // LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
139 // LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
140 //
141 // LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
142 // LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
143 // LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
144 // LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
145 // LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
146 // LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
147 //
148 // LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
149 // LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
150 // LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
151 
152 // LogComponentEnable ("RrFfMacScheduler", LOG_LEVEL_ALL);
153 // LogComponentEnable ("LenaHelper", LOG_LEVEL_ALL);
154 // LogComponentEnable ("RlcStatsCalculator", LOG_LEVEL_ALL);
155 
156 
157 // LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
158 // LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
159 // LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
160 // LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
161 // LogComponentEnable ("RrFfMacScheduler", LOG_LEVEL_ALL);
162 // LogComponentEnable ("LenaHelper", LOG_LEVEL_ALL);
163 // LogComponentEnable ("BuildingsPropagationLossModel", LOG_LEVEL_ALL);
164 // LogComponentEnable ("LteMiErrorModel", LOG_LEVEL_ALL);
165 // LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
166 //
167 // LogComponentDisableAll (LOG_LEVEL_ALL);
168 
169  LogComponentEnable ("LenaTestPhyErrorModel", LOG_LEVEL_ALL);
170 
171 
176  Ptr<LteHelper> lena = CreateObject<LteHelper> ();
177 
178  // Create Nodes: eNodeB and UE
179  NodeContainer enbNodes;
180  NodeContainer ueNodes;
181  enbNodes.Create (1);
182  ueNodes.Create (m_nUser);
183 
184  // Install Mobility Model
185  MobilityHelper mobility;
186  mobility.SetMobilityModel ("ns3::BuildingsMobilityModel");
187  mobility.Install (enbNodes);
188  mobility.SetMobilityModel ("ns3::BuildingsMobilityModel");
189  mobility.Install (ueNodes);
190 
191  // remove random shadowing component
192  lena->SetAttribute ("PathlossModel", StringValue ("ns3::HybridBuildingsPropagationLossModel"));
193  lena->SetPathlossModelAttribute ("ShadowSigmaOutdoor", DoubleValue (0.0));
194  lena->SetPathlossModelAttribute ("ShadowSigmaIndoor", DoubleValue (0.0));
195  lena->SetPathlossModelAttribute ("ShadowSigmaExtWalls", DoubleValue (0.0));
196 
197  // Create Devices and install them in the Nodes (eNB and UE)
198  NetDeviceContainer enbDevs;
199  NetDeviceContainer ueDevs;
200  lena->SetSchedulerType ("ns3::RrFfMacScheduler");
201  lena->SetSchedulerAttribute ("UlCqiFilter", EnumValue (FfMacScheduler::PUSCH_UL_CQI));
202 
203  enbDevs = lena->InstallEnbDevice (enbNodes);
204  ueDevs = lena->InstallUeDevice (ueNodes);
205 
206  // Attach a UE to a eNB
207  lena->Attach (ueDevs, enbDevs.Get (0));
208 
209  // Activate an EPS bearer
210  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
211  EpsBearer bearer (q);
212  lena->ActivateDataRadioBearer (ueDevs, bearer);
213 
214 
215  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
216  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
217  enbPhy->SetAttribute ("TxPower", DoubleValue (43.0));
218  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
219  // place the HeNB over the default rooftop level (20 mt.)
220  Ptr<BuildingsMobilityModel> mm = enbNodes.Get (0)->GetObject<BuildingsMobilityModel> ();
221  mm->SetPosition (Vector (0.0, 0.0, 30.0));
222 
223  // Set UEs' position and power
224  for (int i = 0; i < m_nUser; i++)
225  {
226  Ptr<BuildingsMobilityModel> mm = ueNodes.Get (i)->GetObject<BuildingsMobilityModel> ();
227  mm->SetPosition (Vector (m_dist, 0.0, 1.0));
228  Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
229  Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
230  uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
231  uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
232  }
233 
234  lena->EnableRlcTraces ();
235  double simulationTime = 1.000;
236 
237  Simulator::Stop (Seconds (simulationTime));
238 
239  Ptr<RadioBearerStatsCalculator> rlcStats = lena->GetRlcStats ();
240  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
241 
242 
243  Simulator::Run ();
244 
248  NS_LOG_INFO ("\tTest downlink/uplink data shared channels (PDSCH and PUSCH)");
249  NS_LOG_INFO ("Test with " << m_nUser << " user(s) at distance " << m_dist << " expected BER " << m_berRef);
250  std::vector <uint64_t> dlDataRxed;
251  for (int i = 0; i < m_nUser; i++)
252  {
253  // get the imsi
254  uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
255  // get the lcId
256  uint8_t lcId = 1;
257  dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
258  double txed = rlcStats->GetDlTxData (imsi, lcId);
259  int n = txed / m_tbSize;
260  int lambda = (double)dlDataRxed.at (i) / m_tbSize;
261  double ber = 1.0 - ((double)dlDataRxed.at (i)/txed);
262  double np = n-n*m_berRef;
263  NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << " txed " << txed
264  << " BER " << ber << " Err " << std::fabs (m_berRef - ber) << " lambda " << lambda
265  << " np " << np << " difference " << std::abs (lambda - np) << " quantile " << m_bernQuantile);
266  NS_UNUSED (ber);
267  // the quantiles are evaluated offline according to a Bernoulli
268  // ditribution with n equal to the number of packet sent and p equal
269  // to the BER (see /reference/bernuolliDistribution.m for details)
270  NS_TEST_ASSERT_MSG_EQ_TOL (lambda, np, m_bernQuantile, " Unexpected BER distribution!");
271  }
272 
273 
274  Simulator::Destroy ();
275 }
276 
277 
278 
279 
280 std::string
281 LenaDlCtrlPhyErrorModelTestCase::BuildNameString (uint16_t nEnb, uint16_t dist)
282 {
283  std::ostringstream oss;
284  oss << nEnb << " eNBs, distance " << dist << " m";
285  return oss.str ();
286 }
287 
288 
289 LenaDlCtrlPhyErrorModelTestCase::LenaDlCtrlPhyErrorModelTestCase (uint16_t nEnb, uint16_t dist, uint16_t tbSize, double berRef)
290 : TestCase (BuildNameString (nEnb, dist)),
291 m_nEnb (nEnb),
292 m_dist (dist),
293 m_tbSize (tbSize),
294 m_berRef (berRef)
295 {
296 }
297 
298 LenaDlCtrlPhyErrorModelTestCase::~LenaDlCtrlPhyErrorModelTestCase ()
299 {
300 }
301 
302 void
303 LenaDlCtrlPhyErrorModelTestCase::DoRun (void)
304 {
305 
306  double ber = 0.03;
307  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (ber));
308  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
309  Config::SetDefault ("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue (true));
310  Config::SetDefault ("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue (false));
311  Config::SetDefault ("ns3::RrFfMacScheduler::HarqEnabled", BooleanValue (false));
312  // LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
313  // LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
314  // LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
315  // LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
316  // LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
317  //
318  // LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
319  // LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
320  // LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
321 
322  // LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
323  // LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
324  // LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
325  //
326  // LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
327  // LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
328  // LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
329  // LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
330  // LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
331  // LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
332  //
333  // LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
334  // LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
335  // LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
336 
337 // LogComponentEnable ("RrFfMacScheduler", LOG_LEVEL_ALL);
338  // LogComponentEnable ("LenaHelper", LOG_LEVEL_ALL);
339  // LogComponentEnable ("RlcStatsCalculator", LOG_LEVEL_ALL);
340 
341 
342  // LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
343  // LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
344  // LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
345  // LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
346 // LogComponentEnable ("RrFfMacScheduler", LOG_LEVEL_ALL);
347  // LogComponentEnable ("LenaHelper", LOG_LEVEL_ALL);
348  // LogComponentEnable ("BuildingsPropagationLossModel", LOG_LEVEL_ALL);
349 // LogComponentEnable ("LteMiErrorModel", LOG_LEVEL_ALL);
350  // LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
351  //
352 // LogComponentDisableAll (LOG_LEVEL_ALL);
353 
354  LogComponentEnable ("LenaTestPhyErrorModel", LOG_LEVEL_ALL);
355 
356 
361  Ptr<LteHelper> lena = CreateObject<LteHelper> ();
362 
363  // Create Nodes: eNodeB and UE
364  NodeContainer enbNodes;
365  NodeContainer ueNodes;
366  enbNodes.Create (m_nEnb);
367  ueNodes.Create (1);
368 
369  // Install Mobility Model
370  MobilityHelper mobility;
371  mobility.SetMobilityModel ("ns3::BuildingsMobilityModel");
372  mobility.Install (enbNodes);
373  mobility.SetMobilityModel ("ns3::BuildingsMobilityModel");
374  mobility.Install (ueNodes);
375 
376  // remove random shadowing component
377  lena->SetAttribute ("PathlossModel", StringValue ("ns3::HybridBuildingsPropagationLossModel"));
378  lena->SetPathlossModelAttribute ("ShadowSigmaOutdoor", DoubleValue (0.0));
379  lena->SetPathlossModelAttribute ("ShadowSigmaIndoor", DoubleValue (0.0));
380  lena->SetPathlossModelAttribute ("ShadowSigmaExtWalls", DoubleValue (0.0));
381 
382  // Create Devices and install them in the Nodes (eNB and UE)
383  NetDeviceContainer enbDevs;
384  NetDeviceContainer ueDevs;
385  lena->SetSchedulerType ("ns3::RrFfMacScheduler");
386  lena->SetSchedulerAttribute ("UlCqiFilter", EnumValue (FfMacScheduler::PUSCH_UL_CQI));
387 
388  enbDevs = lena->InstallEnbDevice (enbNodes);
389  ueDevs = lena->InstallUeDevice (ueNodes);
390 
391  // Attach a UE to one eNB (the others are interfering ones)
392  lena->Attach (ueDevs, enbDevs.Get (0));
393 
394  // Activate an EPS bearer
395  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
396  EpsBearer bearer (q);
397  lena->ActivateDataRadioBearer (ueDevs, bearer);
398 
399  // Set UEs' position and power
400  for (int i = 0; i < m_nEnb; i++)
401  {
402  // place the HeNB over the default rooftop level (20 mt.)
403  Ptr<BuildingsMobilityModel> mm = enbNodes.Get (i)->GetObject<BuildingsMobilityModel> ();
404  mm->SetPosition (Vector (0.0, 0.0, 30.0));
405  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (i)->GetObject<LteEnbNetDevice> ();
406  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
407  enbPhy->SetAttribute ("TxPower", DoubleValue (43.0));
408  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
409  }
410 
411  // Set UEs' position and power
412  Ptr<BuildingsMobilityModel> mm = ueNodes.Get (0)->GetObject<BuildingsMobilityModel> ();
413  mm->SetPosition (Vector (m_dist, 0.0, 1.0));
414  Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (0)->GetObject<LteUeNetDevice> ();
415  Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
416  uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
417  uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
418 
419 
420  lena->EnableRlcTraces ();
421  double simulationTime = 1.000;
422 
423  Simulator::Stop (Seconds (simulationTime));
424 
425  Ptr<RadioBearerStatsCalculator> rlcStats = lena->GetRlcStats ();
426  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
427 
428 
429  Simulator::Run ();
430 
434  NS_LOG_INFO ("\tTest downlink control channels (PCFICH+PDCCH)");
435  NS_LOG_INFO ("Test with " << m_nEnb << " eNB(s) at distance " << m_dist << " expected BER " << m_berRef);
436  std::vector <uint64_t> dlDataRxed;
437  int nUser = 1;
438  for (int i = 0; i < nUser; i++)
439  {
440  // get the imsi
441  uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
442  // get the lcId
443  uint8_t lcId = 1;
444  dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
445  double txed = rlcStats->GetDlTxData (imsi, lcId);
446  double ber = 1.0 - ((double)dlDataRxed.at (i)/txed);
447  NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << " txed " << txed
448  << " BER " << ber << " Err " << fabs (m_berRef - ber));
449  NS_UNUSED (ber);
450  NS_TEST_ASSERT_MSG_EQ_TOL (ber, m_berRef, 0.1, " Unexpected BER distribution!");
451  }
452 
453 
454  Simulator::Destroy ();
455 }
456 
457 
458 } // namespace