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lte-test-fdmt-ff-mac-scheduler.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  * Nicola Baldo <nbaldo@cttc.es>
20  * Dizhi Zhou <dizhi.zhou@gmail.com>
21  */
22 
23 #include <iostream>
24 #include <sstream>
25 #include <string>
26 
27 #include <ns3/object.h>
28 #include <ns3/spectrum-interference.h>
29 #include <ns3/spectrum-error-model.h>
30 #include <ns3/log.h>
31 #include <ns3/test.h>
32 #include <ns3/simulator.h>
33 #include <ns3/packet.h>
34 #include <ns3/ptr.h>
35 #include "ns3/radio-bearer-stats-calculator.h"
36 #include <ns3/constant-position-mobility-model.h>
37 #include "lte-test-fdmt-ff-mac-scheduler.h"
38 #include <ns3/eps-bearer.h>
39 #include <ns3/node-container.h>
40 #include <ns3/mobility-helper.h>
41 #include <ns3/net-device-container.h>
42 #include <ns3/lte-ue-net-device.h>
43 #include <ns3/lte-enb-net-device.h>
44 #include <ns3/lte-ue-rrc.h>
45 #include <ns3/lte-helper.h>
46 #include "ns3/string.h"
47 #include "ns3/double.h"
48 #include <ns3/lte-enb-phy.h>
49 #include <ns3/lte-ue-phy.h>
50 #include <ns3/boolean.h>
51 #include <ns3/enum.h>
52 
53 
54 #include "lte-test-fdmt-ff-mac-scheduler.h"
55 
56 NS_LOG_COMPONENT_DEFINE ("LenaTestFdMtFfMacScheduler");
57 
58 using namespace ns3;
59 
60 LenaTestFdMtFfMacSchedulerSuite::LenaTestFdMtFfMacSchedulerSuite ()
61  : TestSuite ("lte-fdmt-ff-mac-scheduler", SYSTEM)
62 {
63  NS_LOG_INFO ("creating LenaTestFdMtFfMacSchedulerSuite");
64 
65  bool errorModel = false;
66 
67  //Test Case : AMC works in FDMT
68 
69  //Note: here the MCS is calculated by the narrowband CQI
70 
71  // DOWNLINK - DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
72  // 1 user -> 24 PRB at Itbs 26 -> 2196 -> 2196000 bytes/sec for one UE; 0 bytes/sec for other UEs
73  // 3 users -> 2196000 among 3 users -> 2196000 bytes/sec for one UE; 0 bytes/sec for other UEs
74  // 6 users -> 2196000 among 6 users -> 2196000 bytes/sec for one UE; 0 bytes/sec for other UEs
75  // 12 users -> 2196000 among 12 users -> 2196000 bytes/sec for one UE; 0 bytes/sec for other UEs
76  // UPLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
77  // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 bytes/sec
78  // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
79  // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
80  // after the patch enforcing min 3 PRBs per UE:
81  // 12 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/12 UE/TTI -> 184670 bytes/sec
82  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (1,0,0,2196000,2292000, errorModel), TestCase::EXTENSIVE);
83  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (3,0,0,2196000,749000,errorModel), TestCase::QUICK);
84  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (6,0,0,2196000,373000, errorModel), TestCase::EXTENSIVE);
85  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (12,0,0,2196000,184670, errorModel), TestCase::EXTENSIVE);
86 
87  // DOWNLINK - DISTANCE 4800 -> MCS 16 -> Itbs 15 (from table 7.1.7.2.1-1 of 36.213)
88  // 1 user -> 24 PRB at Itbs 15 -> 903 -> 903000 bytes/sec for one UE; 0 bytes/sec for other UEs
89  // 3 users -> 903000 among 3 users -> 903000 bytes/sec for one UE; 0 bytes/sec for other UEs
90  // 6 users -> 903000 among 6 users -> 903000 bytes/sec for one UE; 0 bytes/sec for other UEs
91  // 12 users -> 903000 among 12 users -> 903000 bytes/sec for one UE; 0 bytes/sec for other UEs
92  // UPLINK - DISTANCE 4800 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
93  // 1 user -> 25 PRB at Itbs 13 -> 807 -> 807000 bytes/sec
94  // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
95  // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
96  // after the patch enforcing min 3 PRBs per UE:
97  // 12 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/12 UE/TTI -> 62000 bytes/sec
98  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (1,0,4800,903000,807000,errorModel), TestCase::EXTENSIVE);
99  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (3,0,4800,903000,253000,errorModel), TestCase::EXTENSIVE);
100  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (6,0,4800,903000,125000,errorModel), TestCase::EXTENSIVE);
101  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (12,0,4800,903000,62000,errorModel), TestCase::EXTENSIVE);
102 
103 
104  // DOWNLINK - DISTANCE 6000 -> MCS 16 -> Itbs 15 (from table 7.1.7.2.1-1 of 36.213)
105  // 1 user -> 24 PRB at Itbs 15 -> 775 -> 775000 bytes/sec for one UE; 0 bytes/sec for other UEs
106  // 3 users -> 775000 among 3 users -> 775000 bytes/sec for one UE; 0 bytes/sec for other UEs
107  // 6 users -> 775000 among 6 users -> 775000 bytes/sec for one UE; 0 bytes/sec for other UEs
108  // 12 users ->7753000 among 12 users -> 775000 bytes/sec for one UE; 0 bytes/sec for other UEs
109  // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
110  // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 bytes/sec
111  // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 bytes/sec
112  // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 bytes/sec
113  // after the patch enforcing min 3 PRBs per UE:
114  // 12 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/12 UE/TTI -> 48667 bytes/sec
115  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (1,0,6000,775000,621000, errorModel), TestCase::EXTENSIVE);
116  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (3,0,6000,775000,201000, errorModel), TestCase::EXTENSIVE);
117  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (6,0,6000,775000,97000, errorModel), TestCase::EXTENSIVE);
118  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (12,0,6000,775000,48667, errorModel), TestCase::EXTENSIVE);
119 
120  // DOWNLINK - DISTANCE 10000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
121  // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
122  // 3 users -> 421000 among 3 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
123  // 6 users -> 421000 among 6 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
124  // 12 users -> 421000 among 12 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
125  // UPLINK - DISTANCE 10000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
126  // 1 user -> 24 PRB at Itbs 8 -> 437 -> 437000 bytes/sec
127  // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
128  // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
129  // after the patch enforcing min 3 PRBs per UE:
130  // 12 users -> 3 PRB at Itbs 8 -> 49 bytes * 8/12 UE/TTI -> 32667 bytes/sec
131  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (1,0,10000,421000,437000,errorModel), TestCase::EXTENSIVE);
132  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (3,0,10000,421000,137000,errorModel), TestCase::EXTENSIVE);
133  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (6,0,10000,421000,67000,errorModel), TestCase::EXTENSIVE);
134  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (12,0,10000,421000,32667,errorModel), TestCase::EXTENSIVE);
135 
136  // DONWLINK - DISTANCE 20000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
137  // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
138  // 3 users -> 421000 among 3 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
139  // 6 users -> 421000 among 6 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
140  // 12 users -> 421000 among 12 users -> 421000 bytes/sec for one UE; 0 bytes/sec for other UEs
141  // UPLINK - DISTANCE 20000 -> MCS 2 -> Itbs 2 (from table 7.1.7.2.1-1 of 36.213)
142  // 1 user -> 25 PRB at Itbs 2 -> 233 -> 137000 bytes/sec
143  // 3 users -> 8 PRB at Itbs 2 -> 69 -> 41000 bytes/sec
144  // 6 users -> 4 PRB at Itbs 2 -> 32 -> 22000 bytes/sec
145  // after the patch enforcing min 3 PRBs per UE:
146  // 12 users -> 3 PRB at Itbs 2 -> 26 bytes * 8/12 UE/TTI -> 12000 bytes/sec
147  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (1,0,20000,421000,137000,errorModel), TestCase::EXTENSIVE);
148  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (3,0,20000,421000,41000,errorModel), TestCase::EXTENSIVE);
149  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (6,0,20000,421000,22000,errorModel), TestCase::EXTENSIVE);
150  AddTestCase (new LenaFdMtFfMacSchedulerTestCase (12,0,20000,421000,12000,errorModel), TestCase::EXTENSIVE);
151 }
152 
153 static LenaTestFdMtFfMacSchedulerSuite lenaTestFdMtFfMacSchedulerSuite;
154 
155 
156 // --------------- T E S T - C A S E ------------------------------
157 
158 std::string
159 LenaFdMtFfMacSchedulerTestCase::BuildNameString (uint16_t nUser, uint16_t dist)
160 {
161  std::ostringstream oss;
162  oss << nUser << " UEs, distance " << dist << " m";
163  return oss.str ();
164 }
165 
166 LenaFdMtFfMacSchedulerTestCase::LenaFdMtFfMacSchedulerTestCase (uint16_t nUser, uint16_t nLc, uint16_t dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
167  : TestCase (BuildNameString (nUser, dist)),
168  m_nUser (nUser),
169  m_nLc (nLc),
170  m_dist (dist),
171  m_thrRefDl (thrRefDl),
172  m_thrRefUl (thrRefUl),
173  m_errorModelEnabled (errorModelEnabled)
174 {
175 }
176 
177 LenaFdMtFfMacSchedulerTestCase::~LenaFdMtFfMacSchedulerTestCase ()
178 {
179 }
180 
181 
182 void
183 LenaFdMtFfMacSchedulerTestCase::DoRun (void)
184 {
185 
186  NS_LOG_FUNCTION (this << m_nUser << m_nLc << m_dist);
187 
188  if (!m_errorModelEnabled)
189  {
190  Config::SetDefault ("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue (false));
191  Config::SetDefault ("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue (false));
192  }
193 
194  Config::SetDefault ("ns3::LteHelper::UseIdealRrc", BooleanValue (true));
195 
200  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
201  lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
202 
203  // Create Nodes: eNodeB and UE
204  NodeContainer enbNodes;
205  NodeContainer ueNodes;
206  enbNodes.Create (1);
207  ueNodes.Create (m_nUser);
208 
209  // Install Mobility Model
210  MobilityHelper mobility;
211  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
212  mobility.Install (enbNodes);
213  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
214  mobility.Install (ueNodes);
215 
216  // Create Devices and install them in the Nodes (eNB and UE)
217  NetDeviceContainer enbDevs;
218  NetDeviceContainer ueDevs;
219  lteHelper->SetSchedulerType ("ns3::FdMtFfMacScheduler");
220  enbDevs = lteHelper->InstallEnbDevice (enbNodes);
221  ueDevs = lteHelper->InstallUeDevice (ueNodes);
222 
223  // Attach a UE to a eNB
224  lteHelper->Attach (ueDevs, enbDevs.Get (0));
225 
226  // Activate an EPS bearer
227  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
228  EpsBearer bearer (q);
229  lteHelper->ActivateDataRadioBearer (ueDevs, bearer);
230 
231 
232  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
233  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
234  enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
235  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
236 
237  // Set UEs' position and power
238  for (int i = 0; i < m_nUser; i++)
239  {
240  Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
241  mm->SetPosition (Vector (m_dist, 0.0, 0.0));
242  Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
243  Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
244  uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
245  uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
246  }
247 
248 
249  double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
250  double statsDuration = 0.6;
251  double tolerance = 0.1;
252  Simulator::Stop (Seconds (statsStartTime + statsDuration - 0.000001));
253 
254  lteHelper->EnableMacTraces ();
255  lteHelper->EnableRlcTraces ();
256  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
257  rlcStats->SetAttribute ("StartTime", TimeValue (Seconds (statsStartTime)));
258  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (statsDuration)));
259 
260 
261  Simulator::Run ();
262 
266  NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
267  std::vector <uint64_t> dlDataRxed;
268  for (int i = 0; i < m_nUser; i++)
269  {
270  // get the imsi
271  uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
272  uint8_t lcId = 3;
273  dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
274  NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << " thr " << (double)dlDataRxed.at (i) / statsDuration << " ref " << m_thrRefDl);
275  }
276 
282  uint8_t found = 0;
283  for (int i = 0; i < m_nUser; i++)
284  {
285  double throughput = (double)dlDataRxed.at (i) / statsDuration;
286  if (throughput != 0 && found == 0)
287  {
288  NS_TEST_ASSERT_MSG_EQ_TOL (throughput, m_thrRefDl, m_thrRefDl * tolerance, " Unfair Throughput!");
289  found = 1;
290  }
291  else if (throughput != 0 && found == 1)
292  {
293  NS_TEST_ASSERT_MSG_EQ_TOL (0, m_thrRefDl, m_thrRefDl * tolerance, " Unfair Throughput!");
294  }
295  else
296  NS_TEST_ASSERT_MSG_EQ_TOL (throughput, 0, 0, " Unfair Throughput!");
297  }
298 
302  NS_LOG_INFO ("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
303  std::vector <uint64_t> ulDataRxed;
304  for (int i = 0; i < m_nUser; i++)
305  {
306  // get the imsi
307  uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
308  // get the lcId
309  uint8_t lcId = 3;
310  ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
311  NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at (i) << " thr " << (double)ulDataRxed.at (i) / statsDuration << " ref " << m_thrRefUl);
312  }
319  for (int i = 0; i < m_nUser; i++)
320  {
321  NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / statsDuration, m_thrRefUl, m_thrRefUl * tolerance, " Unfair Throughput!");
322  }
323  Simulator::Destroy ();
324 
325 }
326