A Discrete-Event Network Simulator
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lte-test-tdbet-ff-mac-scheduler.cc
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1/*
2 * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
3 *
4 * SPDX-License-Identifier: GPL-2.0-only
5 *
6 * Author: Marco Miozzo <marco.miozzo@cttc.es>,
7 * Nicola Baldo <nbaldo@cttc.es>
8 * Dizhi Zhou <dizhi.zhou@gmail.com>
9 */
10
11#include "lte-test-tdbet-ff-mac-scheduler.h"
12
13#include "ns3/boolean.h"
14#include "ns3/constant-position-mobility-model.h"
15#include "ns3/double.h"
16#include "ns3/enum.h"
17#include "ns3/eps-bearer.h"
18#include "ns3/ff-mac-scheduler.h"
19#include "ns3/log.h"
20#include "ns3/lte-enb-net-device.h"
21#include "ns3/lte-enb-phy.h"
22#include "ns3/lte-helper.h"
23#include "ns3/lte-ue-net-device.h"
24#include "ns3/lte-ue-phy.h"
25#include "ns3/lte-ue-rrc.h"
26#include "ns3/mobility-helper.h"
27#include "ns3/net-device-container.h"
28#include "ns3/node-container.h"
29#include "ns3/object.h"
30#include "ns3/packet.h"
31#include "ns3/ptr.h"
32#include "ns3/radio-bearer-stats-calculator.h"
33#include "ns3/simulator.h"
34#include "ns3/spectrum-error-model.h"
35#include "ns3/spectrum-interference.h"
36#include "ns3/string.h"
37#include "ns3/test.h"
38
39#include <iostream>
40#include <sstream>
41#include <string>
42
43using namespace ns3;
44
45NS_LOG_COMPONENT_DEFINE("LenaTestTdBetFfMacScheduler");
46
47LenaTestTdBetFfMacSchedulerSuite::LenaTestTdBetFfMacSchedulerSuite()
48 : TestSuite("lte-tdbet-ff-mac-scheduler", Type::SYSTEM)
49{
50 NS_LOG_INFO("creating LenaTestTdBetFfMacSchedulerSuite");
51
52 bool errorModel = false;
53
54 // Test Case 1: AMC works in TDBET
55
56 // Note: here the MCS is calculated by the wideband CQI
57
58 // DOWNLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
59 // 1 user -> 24 PRB at Itbs 26 -> 2196 -> 2196000 bytes/sec
60 // 3 users -> 2196000 among 3 users -> 732000 bytes/sec
61 // 6 users -> 2196000 among 6 users -> 366000 bytes/sec
62 // 12 users -> 2196000 among 12 users -> 183000 bytes/sec
63 // UPLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
64 // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 bytes/sec
65 // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
66 // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
67 // after the patch enforcing min 3 PRBs per UE:
68 // 12 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/12 UE/TTI -> 184670 bytes/sec
69 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 0, 2196000, 2292000, errorModel),
70 TestCase::Duration::EXTENSIVE);
71 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(3, 0, 732000, 749000, errorModel),
72 TestCase::Duration::EXTENSIVE);
73 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(6, 0, 366000, 373000, errorModel),
74 TestCase::Duration::EXTENSIVE);
75 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(12, 0, 183000, 184670, errorModel),
76 TestCase::Duration::EXTENSIVE);
77
78 // DOWNLINK - DISTANCE 4800 -> MCS 22 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
79 // 1 user -> 24 PRB at Itbs 20 -> 1383 -> 1383000 bytes/sec
80 // 3 users -> 1383000 among 3 users ->461000 bytes/sec
81 // 6 users -> 1383000 among 6 users ->230500 bytes/sec
82 // 12 users -> 1383000 among 12 users ->115250 bytes/sec
83 // UPLINK - DISTANCE 4800 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
84 // 1 user -> 25 PRB at Itbs 13 -> 807 -> 807000 bytes/sec
85 // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
86 // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
87 // after the patch enforcing min 3 PRBs per UE:
88 // 12 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/12 UE/TTI -> 62000 bytes/sec
89 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 4800, 1383000, 807000, errorModel),
90 TestCase::Duration::EXTENSIVE);
91 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(3, 4800, 461000, 253000, errorModel),
92 TestCase::Duration::EXTENSIVE);
93 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(6, 4800, 230500, 125000, errorModel),
94 TestCase::Duration::EXTENSIVE);
95 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(12, 4800, 115250, 62000, errorModel),
96 TestCase::Duration::EXTENSIVE);
97
98 // DOWNLINK - DISTANCE 6000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
99 // 1 user -> 24 PRB at Itbs 18 -> 1191 -> 1191000 byte/sec
100 // 3 users -> 1191000 among 3 users ->397000 bytes/sec
101 // 6 users -> 1191000 among 6 users ->198500 bytes/sec
102 // 12 users -> 1191000 among 12 users ->99250 bytes/sec
103 // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
104 // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 bytes/sec
105 // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 bytes/sec
106 // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 bytes/sec
107 // 12 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/12 UE/TTI -> 48667 bytes/sec
108 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 6000, 1191000, 621000, errorModel),
109 TestCase::Duration::EXTENSIVE);
110 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(3, 6000, 397000, 201000, errorModel),
111 TestCase::Duration::EXTENSIVE);
112 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(6, 6000, 198500, 97000, errorModel),
113 TestCase::Duration::EXTENSIVE);
114 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(12, 6000, 99250, 48667, errorModel),
115 TestCase::Duration::EXTENSIVE);
116
117 // DOWNLINK - DISTANCE 10000 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
118 // 1 user -> 24 PRB at Itbs 13 -> 775 -> 775000 byte/sec
119 // 3 users -> 775000 among 3 users -> 258333 bytes/sec
120 // 6 users -> 775000 among 6 users -> 129166 bytes/sec
121 // 12 users -> 775000 among 12 users ->64583 bytes/sec
122 // UPLINK - DISTANCE 9000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
123 // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
124 // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
125 // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
126 // after the patch enforcing min 3 PRBs per UE:
127 // 12 users -> 3 PRB at Itbs 8 -> 49 bytes * 8/12 UE/TTI -> 32667 bytes/sec
128 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 10000, 775000, 421000, errorModel),
129 TestCase::Duration::EXTENSIVE);
130 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(3, 10000, 258333, 137000, errorModel),
131 TestCase::Duration::EXTENSIVE);
132 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(6, 10000, 129166, 67000, errorModel),
133 TestCase::Duration::EXTENSIVE);
134 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(12, 10000, 64583, 32667, errorModel),
135 TestCase::Duration::EXTENSIVE);
136
137 // DOWNLINK - DISTANCE 20000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
138 // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
139 // 3 users -> 421000 among 3 users ->140333 bytes/sec
140 // 6 users -> 421000 among 6 users ->70166 bytes/sec
141 // 12 users -> 421000 among 12 users ->35083 bytes/sec
142 // UPLINK - DISTANCE 20000 -> MCS 2 -> Itbs 2 (from table 7.1.7.2.1-1 of 36.213)
143 // 1 user -> 25 PRB at Itbs 2 -> 137 -> 137000 bytes/sec
144 // 3 users -> 8 PRB at Itbs 2 -> 41 -> 41000 bytes/sec
145 // 6 users -> 4 PRB at Itbs 2 -> 22 -> 22000 bytes/sec
146 // after the patch enforcing min 3 PRBs per UE:
147 // 12 users -> 3 PRB at Itbs 2 -> 18 bytes * 8/12 UE/TTI -> 12000 bytes/sec
148 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 20000, 421000, 137000, errorModel),
149 TestCase::Duration::EXTENSIVE);
150 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(3, 20000, 140333, 41000, errorModel),
151 TestCase::Duration::EXTENSIVE);
152 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(6, 20000, 70166, 22000, errorModel),
153 TestCase::Duration::EXTENSIVE);
154 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(12, 20000, 35083, 12000, errorModel),
155 TestCase::Duration::EXTENSIVE);
156
157 // DOWNLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
158 // UPLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
159 AddTestCase(new LenaTdBetFfMacSchedulerTestCase1(1, 100000, 0, 0, errorModel),
160 TestCase::Duration::QUICK);
161
162 // Test Case 2: fairness check
163
164 std::vector<double> dist;
165 dist.push_back(0); // User 0 distance --> MCS 28
166 dist.push_back(4800); // User 1 distance --> MCS 22
167 dist.push_back(6000); // User 2 distance --> MCS 14
168 dist.push_back(10000); // User 3 distance --> MCS 8
169 dist.push_back(20000); // User 4 distance --> MCS 8
170 std::vector<uint32_t> estAchievableRateDl;
171 estAchievableRateDl.push_back(2196000);
172 estAchievableRateDl.push_back(1383000);
173 estAchievableRateDl.push_back(775000);
174 estAchievableRateDl.push_back(421000);
175 estAchievableRateDl.push_back(421000);
176 std::vector<uint32_t> estThrTdBetUl;
177 estThrTdBetUl.push_back(469000); // User 0 estimated TTI throughput from TDBET
178 estThrTdBetUl.push_back(157000); // User 1 estimated TTI throughput from TDBET
179 estThrTdBetUl.push_back(125000); // User 2 estimated TTI throughput from TDBET
180 estThrTdBetUl.push_back(85000); // User 3 estimated TTI throughput from TDBET
181 estThrTdBetUl.push_back(26000); // User 4 estimated TTI throughput from TDBET
182 AddTestCase(
183 new LenaTdBetFfMacSchedulerTestCase2(dist, estAchievableRateDl, estThrTdBetUl, errorModel),
184 TestCase::Duration::QUICK);
185}
186
187/**
188 * @ingroup lte-test
189 * Static variable for test initialization
190 */
191static LenaTestTdBetFfMacSchedulerSuite lenaTestTdBetFfMacSchedulerSuite;
192
193// --------------- T E S T - C A S E # 1 ------------------------------
194
195std::string
196LenaTdBetFfMacSchedulerTestCase1::BuildNameString(uint16_t nUser, double dist)
197{
198 std::ostringstream oss;
199 oss << nUser << " UEs, distance " << dist << " m";
200 return oss.str();
201}
202
203LenaTdBetFfMacSchedulerTestCase1::LenaTdBetFfMacSchedulerTestCase1(uint16_t nUser,
204 double dist,
205 double thrRefDl,
206 double thrRefUl,
207 bool errorModelEnabled)
208 : TestCase(BuildNameString(nUser, dist)),
209 m_nUser(nUser),
210 m_dist(dist),
211 m_thrRefDl(thrRefDl),
212 m_thrRefUl(thrRefUl),
213 m_errorModelEnabled(errorModelEnabled)
214{
215}
216
220
221void
222LenaTdBetFfMacSchedulerTestCase1::DoRun()
223{
224 if (!m_errorModelEnabled)
225 {
226 Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
227 Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
228 }
229
230 Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(true));
231 Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
232 StringValue(CreateTempDirFilename("DlMacStats.txt")));
233 Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
234 StringValue(CreateTempDirFilename("UlMacStats.txt")));
235 Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
236 StringValue(CreateTempDirFilename("DlRlcStats.txt")));
237 Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
238 StringValue(CreateTempDirFilename("UlRlcStats.txt")));
239
240 // Disable Uplink Power Control
241 Config::SetDefault("ns3::LteUePhy::EnableUplinkPowerControl", BooleanValue(false));
242
243 /**
244 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
245 */
246
247 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
248
249 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
250
251 // Create Nodes: eNodeB and UE
252 NodeContainer enbNodes;
253 NodeContainer ueNodes;
254 enbNodes.Create(1);
255 ueNodes.Create(m_nUser);
256
257 // Install Mobility Model
258 MobilityHelper mobility;
259 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
260 mobility.Install(enbNodes);
261 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
262 mobility.Install(ueNodes);
263
264 // Create Devices and install them in the Nodes (eNB and UE)
265 NetDeviceContainer enbDevs;
266 NetDeviceContainer ueDevs;
267 lteHelper->SetSchedulerType("ns3::TdBetFfMacScheduler");
268 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
269 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
270 ueDevs = lteHelper->InstallUeDevice(ueNodes);
271
272 // Attach a UE to a eNB
273 lteHelper->Attach(ueDevs, enbDevs.Get(0));
274
275 // Activate an EPS bearer
276 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
277 EpsBearer bearer(q);
278 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
279
280 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
281 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
282 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
283 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
284
285 // Set UEs' position and power
286 for (int i = 0; i < m_nUser; i++)
287 {
288 Ptr<ConstantPositionMobilityModel> mm =
289 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
290 mm->SetPosition(Vector(m_dist, 0.0, 0.0));
291 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
292 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
293 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
294 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
295 }
296
297 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
298 double statsDuration = 0.6;
299 double tolerance = 0.1;
300 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
301
302 lteHelper->EnableMacTraces();
303 lteHelper->EnableRlcTraces();
304 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
305 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
306 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
307
308 NS_LOG_DEBUG("Start ");
309
310 Simulator::Run();
311
312 /**
313 * Check that the downlink assignment is done in a "TD blind equal throughput" manner
314 */
315 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
316 std::vector<uint64_t> dlDataRxed;
317 for (int i = 0; i < m_nUser; i++)
318 {
319 // get the imsi
320 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
321 // get the lcId
322 uint8_t lcId = 3;
323 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
324 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at(i)
325 << " thr " << (double)dlDataRxed.at(i) / statsDuration << " ref "
326 << m_thrRefDl);
327 }
328 /**
329 * Check that the assignment is done in a "TD blind equal throughput" manner among users
330 * with equal SINRs: the bandwidth should be distributed according to the
331 * ratio of the estimated throughput per TTI of each user; therefore equally
332 * partitioning the whole bandwidth achievable from a single users in a TTI
333 */
334 for (int i = 0; i < m_nUser; i++)
335 {
336 NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
337 m_thrRefDl,
338 m_thrRefDl * tolerance,
339 " Unfair Throughput!");
340 }
341
342 /**
343 * Check that the uplink assignment is done in a "TD blind equal throughput" manner
344 */
345 NS_LOG_INFO("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
346 std::vector<uint64_t> ulDataRxed;
347 for (int i = 0; i < m_nUser; i++)
348 {
349 // get the imsi
350 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
351 // get the lcId
352 uint8_t lcId = 3;
353 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
354 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at(i)
355 << " thr " << (double)ulDataRxed.at(i) / statsDuration << " ref "
356 << m_thrRefUl);
357 }
358 /**
359 * Check that the assignment is done in a "TD blind equal throughput" manner among users
360 * with equal SINRs: the bandwidth should be distributed according to the
361 * ratio of the estimated throughput per TTI of each user; therefore equally
362 * partitioning the whole bandwidth achievable from a single users in a TTI
363 */
364 for (int i = 0; i < m_nUser; i++)
365 {
366 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
367 m_thrRefUl,
368 m_thrRefUl * tolerance,
369 " Unfair Throughput!");
370 }
371 Simulator::Destroy();
372}
373
374// --------------- T E S T - C A S E # 2 ------------------------------
375
376std::string
377LenaTdBetFfMacSchedulerTestCase2::BuildNameString(uint16_t nUser, std::vector<double> dist)
378{
379 std::ostringstream oss;
380 oss << "distances (m) = [ ";
381 for (auto it = dist.begin(); it != dist.end(); ++it)
382 {
383 oss << *it << " ";
384 }
385 oss << "]";
386 return oss.str();
387}
388
389LenaTdBetFfMacSchedulerTestCase2::LenaTdBetFfMacSchedulerTestCase2(
390 std::vector<double> dist,
391 std::vector<uint32_t> estAchievableRateDl,
392 std::vector<uint32_t> estThrTdBetUl,
393 bool errorModelEnabled)
394 : TestCase(BuildNameString(dist.size(), dist)),
395 m_nUser(dist.size()),
396 m_dist(dist),
397 m_achievableRateDl(estAchievableRateDl),
398 m_estThrTdBetUl(estThrTdBetUl),
399 m_errorModelEnabled(errorModelEnabled)
400{
401}
402
406
407void
408LenaTdBetFfMacSchedulerTestCase2::DoRun()
409{
410 NS_LOG_FUNCTION(this);
411
412 if (!m_errorModelEnabled)
413 {
414 Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
415 Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
416 }
417 Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(false));
418 Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
419 StringValue(CreateTempDirFilename("DlMacStats.txt")));
420 Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
421 StringValue(CreateTempDirFilename("UlMacStats.txt")));
422 Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
423 StringValue(CreateTempDirFilename("DlRlcStats.txt")));
424 Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
425 StringValue(CreateTempDirFilename("UlRlcStats.txt")));
426
427 /**
428 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
429 */
430
431 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
432
433 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
434
435 // Create Nodes: eNodeB and UE
436 NodeContainer enbNodes;
437 NodeContainer ueNodes;
438 enbNodes.Create(1);
439 ueNodes.Create(m_nUser);
440
441 // Install Mobility Model
442 MobilityHelper mobility;
443 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
444 mobility.Install(enbNodes);
445 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
446 mobility.Install(ueNodes);
447
448 // Create Devices and install them in the Nodes (eNB and UE)
449 NetDeviceContainer enbDevs;
450 NetDeviceContainer ueDevs;
451 lteHelper->SetSchedulerType("ns3::TdBetFfMacScheduler");
452 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
453 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
454 ueDevs = lteHelper->InstallUeDevice(ueNodes);
455
456 // Attach a UE to a eNB
457 lteHelper->Attach(ueDevs, enbDevs.Get(0));
458
459 // Activate an EPS bearer
460 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
461 EpsBearer bearer(q);
462 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
463
464 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
465 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
466 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
467 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
468
469 // Set UEs' position and power
470 for (int i = 0; i < m_nUser; i++)
471 {
472 Ptr<ConstantPositionMobilityModel> mm =
473 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
474 mm->SetPosition(Vector(m_dist.at(i), 0.0, 0.0));
475 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
476 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
477 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
478 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
479 }
480
481 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
482 double statsDuration = 0.4;
483 double tolerance = 0.1;
484 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
485
486 lteHelper->EnableMacTraces();
487 lteHelper->EnableRlcTraces();
488 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
489 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
490 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
491
492 Simulator::Run();
493
494 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s)");
495 std::vector<uint64_t> dlDataRxed;
496 double totalData = 0;
497 double estTotalThr = 0;
498 double estUeThr = 0;
499 for (int i = 0; i < m_nUser; i++)
500 {
501 // get the imsi
502 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
503 // get the lcId
504 uint8_t lcId = 3;
505 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
506 totalData += (double)dlDataRxed.at(i);
507 estTotalThr += 1 / m_achievableRateDl.at(i);
508 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " imsi " << imsi << " bytes rxed "
509 << (double)dlDataRxed.at(i) << " thr "
510 << (double)dlDataRxed.at(i) / statsDuration << " ref " << m_nUser);
511 }
512
513 estTotalThr = m_nUser * (1 / estTotalThr);
514 estUeThr = estTotalThr / m_nUser;
515 /**
516 * Check that the assignment is done in a "TD blind equal throughput" manner among users
517 * with different SINRs: the bandwidth should be distributed equally in long term
518 */
519 for (int i = 0; i < m_nUser; i++)
520 {
521 double thrRatio = 1.0 / m_nUser;
522 double estThrRatio = (double)dlDataRxed.at(i) / totalData;
523 NS_LOG_INFO("\tUser " << i << " thrRatio " << thrRatio << " estThrRatio " << estThrRatio);
524 NS_TEST_ASSERT_MSG_EQ_TOL(estThrRatio, thrRatio, tolerance, " Unfair Throughput!");
525 NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
526 estUeThr,
527 estUeThr * tolerance,
528 " Unfair Throughput!");
529 }
530
531 /**
532 * Check that the assignment in uplink is done in a round robin manner.
533 */
534
535 NS_LOG_INFO("UL - Test with " << m_nUser);
536 std::vector<uint64_t> ulDataRxed;
537 for (int i = 0; i < m_nUser; i++)
538 {
539 // get the imsi
540 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
541 // get the lcId
542 uint8_t lcId = 3;
543 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
544 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " bytes rxed "
545 << (double)ulDataRxed.at(i) << " thr "
546 << (double)ulDataRxed.at(i) / statsDuration << " ref "
547 << (double)m_estThrTdBetUl.at(i));
548 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
549 (double)m_estThrTdBetUl.at(i),
550 (double)m_estThrTdBetUl.at(i) * tolerance,
551 " Unfair Throughput!");
552 }
553 Simulator::Destroy();
554}
LenaTdBetFfMacSchedulerTestCase1
This system test program creates different test cases with a single eNB and several UEs,...
Definition lte-test-tdbet-ff-mac-scheduler.h:31
LenaTdBetFfMacSchedulerTestCase1::m_errorModelEnabled
bool m_errorModelEnabled
indicates whether the error model is enabled
Definition lte-test-tdbet-ff-mac-scheduler.h:62
LenaTdBetFfMacSchedulerTestCase1::BuildNameString
static std::string BuildNameString(uint16_t nUser, double dist)
Builds the test name string based on provided parameter values.
Definition lte-test-tdbet-ff-mac-scheduler.cc:196
LenaTdBetFfMacSchedulerTestCase1::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-tdbet-ff-mac-scheduler.cc:222
LenaTdBetFfMacSchedulerTestCase1::m_thrRefUl
double m_thrRefUl
the UL throughput reference
Definition lte-test-tdbet-ff-mac-scheduler.h:61
LenaTdBetFfMacSchedulerTestCase1::m_thrRefDl
double m_thrRefDl
the DL throughput reference
Definition lte-test-tdbet-ff-mac-scheduler.h:60
LenaTdBetFfMacSchedulerTestCase1::LenaTdBetFfMacSchedulerTestCase1
LenaTdBetFfMacSchedulerTestCase1(uint16_t nUser, double dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
Constructor.
Definition lte-test-tdbet-ff-mac-scheduler.cc:203
LenaTdBetFfMacSchedulerTestCase1::m_dist
double m_dist
the distance between UE nodes and eNodeB
Definition lte-test-tdbet-ff-mac-scheduler.h:59
LenaTdBetFfMacSchedulerTestCase2
Lena TdBet Ff Mac Scheduler Test Case.
Definition lte-test-tdbet-ff-mac-scheduler.h:71
LenaTdBetFfMacSchedulerTestCase2::BuildNameString
static std::string BuildNameString(uint16_t nUser, std::vector< double > dist)
Build name string.
Definition lte-test-tdbet-ff-mac-scheduler.cc:377
LenaTdBetFfMacSchedulerTestCase2::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-tdbet-ff-mac-scheduler.cc:408
LenaTdBetFfMacSchedulerTestCase2::m_dist
std::vector< double > m_dist
the distance between nodes
Definition lte-test-tdbet-ff-mac-scheduler.h:97
LenaTdBetFfMacSchedulerTestCase2::LenaTdBetFfMacSchedulerTestCase2
LenaTdBetFfMacSchedulerTestCase2(std::vector< double > dist, std::vector< uint32_t > achievableRateDl, std::vector< uint32_t > estThrTdBetUl, bool errorModelEnabled)
Constructor.
Definition lte-test-tdbet-ff-mac-scheduler.cc:389
LenaTdBetFfMacSchedulerTestCase2::m_estThrTdBetUl
std::vector< uint32_t > m_estThrTdBetUl
etimated TDBET UL throughput
Definition lte-test-tdbet-ff-mac-scheduler.h:99
LenaTdBetFfMacSchedulerTestCase2::m_errorModelEnabled
bool m_errorModelEnabled
indicates whether the error model is enabled
Definition lte-test-tdbet-ff-mac-scheduler.h:100
LenaTdBetFfMacSchedulerTestCase2::m_achievableRateDl
std::vector< uint32_t > m_achievableRateDl
DL achievable rate.
Definition lte-test-tdbet-ff-mac-scheduler.h:98
LenaTestTdBetFfMacSchedulerSuite
Test suite for TdBetFfMacScheduler tests.
Definition lte-test-tdbet-ff-mac-scheduler.h:109
ns3::BooleanValue
AttributeValue implementation for Boolean.
Definition boolean.h:26
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:23
ns3::DoubleValue
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition double.h:31
ns3::EnumValue
Hold variables of type enum.
Definition enum.h:52
ns3::EpsBearer
This class contains the specification of EPS Bearers.
Definition eps-bearer.h:80
ns3::EpsBearer::Qci
Qci
QoS Class Indicator.
Definition eps-bearer.h:95
ns3::EpsBearer::GBR_CONV_VOICE
@ GBR_CONV_VOICE
GBR Conversational Voice.
Definition eps-bearer.h:96
ns3::LteEnbNetDevice
The eNodeB device implementation.
Definition lte-enb-net-device.h:48
ns3::LteUeNetDevice
The LteUeNetDevice class implements the UE net device.
Definition lte-ue-net-device.h:46
ns3::MobilityHelper
Helper class used to assign positions and mobility models to nodes.
Definition mobility-helper.h:33
ns3::MobilityModel::SetPosition
void SetPosition(const Vector &position)
Definition mobility-model.cc:81
ns3::NetDeviceContainer
holds a vector of ns3::NetDevice pointers
Definition net-device-container.h:32
ns3::NodeContainer
keep track of a set of node pointers.
Definition node-container.h:29
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:73
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition ptr.h:66
ns3::Simulator::Destroy
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition simulator.cc:131
ns3::Simulator::Run
static void Run()
Run the simulation.
Definition simulator.cc:167
ns3::Simulator::Stop
static void Stop()
Tell the Simulator the calling event should be the last one executed.
Definition simulator.cc:175
ns3::StringValue
Hold variables of type string.
Definition string.h:45
ns3::TestCase
encapsulates test code
Definition test.h:1050
ns3::TestCase::AddTestCase
void AddTestCase(TestCase *testCase, Duration duration=Duration::QUICK)
Add an individual child TestCase to this test suite.
Definition test.cc:292
ns3::TestCase::CreateTempDirFilename
std::string CreateTempDirFilename(std::string filename)
Construct the full path to a file in a temporary directory.
Definition test.cc:432
ns3::TestSuite
A suite of tests to run.
Definition test.h:1267
ns3::TestSuite::Type
Type
Type of test.
Definition test.h:1274
ns3::TimeValue
AttributeValue implementation for Time.
Definition nstime.h:1431
ns3::Config::SetDefault
void SetDefault(std::string name, const AttributeValue &value)
Definition config.cc:883
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition log.h:191
NS_LOG_DEBUG
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition log.h:257
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:229
NS_LOG_INFO
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition log.h:264
lenaTestTdBetFfMacSchedulerSuite
static LenaTestTdBetFfMacSchedulerSuite lenaTestTdBetFfMacSchedulerSuite
Static variable for test initialization.
Definition lte-test-tdbet-ff-mac-scheduler.cc:191
ns3::Create
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
Definition ptr.h:436
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:327
ns3::Seconds
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition nstime.h:1344
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.