A Discrete-Event Network Simulator
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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 * 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-fdbet-ff-mac-scheduler.h"
12
13#include "ns3/double.h"
14#include "ns3/radio-bearer-stats-calculator.h"
15#include "ns3/string.h"
16#include <ns3/boolean.h>
17#include <ns3/constant-position-mobility-model.h>
18#include <ns3/enum.h>
19#include <ns3/eps-bearer.h>
20#include <ns3/ff-mac-scheduler.h>
21#include <ns3/log.h>
22#include <ns3/lte-enb-net-device.h>
23#include <ns3/lte-enb-phy.h>
24#include <ns3/lte-helper.h>
25#include <ns3/lte-ue-net-device.h>
26#include <ns3/lte-ue-phy.h>
27#include <ns3/lte-ue-rrc.h>
28#include <ns3/mobility-helper.h>
29#include <ns3/net-device-container.h>
30#include <ns3/node-container.h>
31#include <ns3/object.h>
32#include <ns3/packet.h>
33#include <ns3/ptr.h>
34#include <ns3/simulator.h>
35#include <ns3/spectrum-error-model.h>
36#include <ns3/spectrum-interference.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("LenaTestFdBetFfMacScheduler");
46
47LenaTestFdBetFfMacSchedulerSuite::LenaTestFdBetFfMacSchedulerSuite()
48 : TestSuite("lte-fdbet-ff-mac-scheduler", Type::SYSTEM)
49{
50 NS_LOG_INFO("creating LenaTestFdBetFfMacSchedulerSuite");
51
52 bool errorModel = false;
53
54 // Test Case 1: AMC works in FDBET
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 -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
61 // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
62 // 12 users -> 2 PRB at Itbs 26 -> 185 -> 185000 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 LenaFdBetFfMacSchedulerTestCase1(1, 0, 2196000, 2292000, errorModel),
70 TestCase::Duration::EXTENSIVE);
71 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 0, 749000, 749000, errorModel),
72 TestCase::Duration::EXTENSIVE);
73 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 0, 373000, 373000, errorModel),
74 TestCase::Duration::EXTENSIVE);
75 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 0, 185000, 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 -> 8 PRB at Itbs 20 -> 469 -> 469000 bytes/sec
81 // 6 users -> 4 PRB at Itbs 20 -> 233 -> 233000 bytes/sec
82 // 12 users -> 2 PRB at Itbs 20 -> 113 -> 113000 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 LenaFdBetFfMacSchedulerTestCase1(1, 4800, 1383000, 807000, errorModel),
90 TestCase::Duration::EXTENSIVE);
91 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 4800, 469000, 253000, errorModel),
92 TestCase::Duration::EXTENSIVE);
93 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 4800, 233500, 125000, errorModel),
94 TestCase::Duration::EXTENSIVE);
95 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 4800, 113000, 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 -> 8 PRB at Itbs 18 -> 389 -> 389000 bytes/sec
101 // 6 users -> 4 PRB at Itbs 18 -> 193 -> 193000 bytes/sec
102 // 12 users -> 2 PRB at Itbs 18 -> 97 -> 97000 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 LenaFdBetFfMacSchedulerTestCase1(1, 6000, 1191000, 621000, errorModel),
109 TestCase::Duration::EXTENSIVE);
110 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 6000, 389000, 201000, errorModel),
111 TestCase::Duration::EXTENSIVE);
112 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 6000, 193000, 97000, errorModel),
113 TestCase::Duration::EXTENSIVE);
114 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 6000, 97000, 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 -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
120 // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
121 // 12 users -> 2 PRB at Itbs 13 -> 61 -> 61000 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 LenaFdBetFfMacSchedulerTestCase1(1, 10000, 775000, 421000, errorModel),
129 TestCase::Duration::EXTENSIVE);
130 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 10000, 253000, 137000, errorModel),
131 TestCase::Duration::EXTENSIVE);
132 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 10000, 125000, 67000, errorModel),
133 TestCase::Duration::EXTENSIVE);
134 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 10000, 61000, 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 -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
140 // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
141 // 12 users -> 2 PRB at Itbs 8 -> 32 -> 32000 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 LenaFdBetFfMacSchedulerTestCase1(1, 20000, 421000, 137000, errorModel),
149 TestCase::Duration::EXTENSIVE);
150 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(3, 20000, 137000, 41000, errorModel),
151 TestCase::Duration::EXTENSIVE);
152 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(6, 20000, 67000, 22000, errorModel),
153 TestCase::Duration::EXTENSIVE);
154 AddTestCase(new LenaFdBetFfMacSchedulerTestCase1(12, 20000, 32000, 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 LenaFdBetFfMacSchedulerTestCase1(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> estThrFdBetUl;
177 estThrFdBetUl.push_back(469000); // User 0 estimated TTI throughput from FDBET
178 estThrFdBetUl.push_back(157000); // User 1 estimated TTI throughput from FDBET
179 estThrFdBetUl.push_back(125000); // User 2 estimated TTI throughput from FDBET
180 estThrFdBetUl.push_back(85000); // User 3 estimated TTI throughput from FDBET
181 estThrFdBetUl.push_back(26000); // User 4 estimated TTI throughput from FDBET
182 AddTestCase(
183 new LenaFdBetFfMacSchedulerTestCase2(dist, estAchievableRateDl, estThrFdBetUl, errorModel),
184 TestCase::Duration::QUICK);
185}
186
187/**
188 * \ingroup lte-test
189 * Static variable for test initialization
190 */
191static LenaTestFdBetFfMacSchedulerSuite lenaTestFdBetFfMacSchedulerSuite;
192
193// --------------- T E S T - C A S E # 1 ------------------------------
194
195std::string
196LenaFdBetFfMacSchedulerTestCase1::BuildNameString(uint16_t nUser, double dist)
197{
198 std::ostringstream oss;
199 oss << nUser << " UEs, distance " << dist << " m";
200 return oss.str();
201}
202
203LenaFdBetFfMacSchedulerTestCase1::LenaFdBetFfMacSchedulerTestCase1(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
222LenaFdBetFfMacSchedulerTestCase1::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 /**
241 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
242 */
243
244 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
245
246 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
247
248 // Create Nodes: eNodeB and UE
249 NodeContainer enbNodes;
250 NodeContainer ueNodes;
251 enbNodes.Create(1);
252 ueNodes.Create(m_nUser);
253
254 // Install Mobility Model
255 MobilityHelper mobility;
256 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
257 mobility.Install(enbNodes);
258 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
259 mobility.Install(ueNodes);
260
261 // Create Devices and install them in the Nodes (eNB and UE)
262 NetDeviceContainer enbDevs;
263 NetDeviceContainer ueDevs;
264 lteHelper->SetSchedulerType("ns3::FdBetFfMacScheduler");
265 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
266 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
267 ueDevs = lteHelper->InstallUeDevice(ueNodes);
268
269 // Attach a UE to a eNB
270 lteHelper->Attach(ueDevs, enbDevs.Get(0));
271
272 // Activate an EPS bearer
273 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
274 EpsBearer bearer(q);
275 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
276
277 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
278 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
279 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
280 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
281
282 // Set UEs' position and power
283 for (int i = 0; i < m_nUser; i++)
284 {
285 Ptr<ConstantPositionMobilityModel> mm =
286 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
287 mm->SetPosition(Vector(m_dist, 0.0, 0.0));
288 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
289 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
290 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
291 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
292 }
293
294 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
295 double statsDuration = 0.6;
296 double tolerance = 0.1;
297 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
298
299 lteHelper->EnableMacTraces();
300 lteHelper->EnableRlcTraces();
301 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
302 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
303 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
304
305 Simulator::Run();
306
307 /**
308 * Check that the downlink assignment is done in a "FD blind equal throughput" manner
309 */
310 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
311 std::vector<uint64_t> dlDataRxed;
312 for (int i = 0; i < m_nUser; i++)
313 {
314 // get the imsi
315 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
316 // get the lcId
317 uint8_t lcId = 3;
318 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
319 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at(i)
320 << " thr " << (double)dlDataRxed.at(i) / statsDuration << " ref "
321 << m_thrRefDl);
322 }
323 /**
324 * Check that the assignment is done in a "FD blind equal throughput" manner among users
325 * with equal SINRs: the bandwidth should be distributed according to the
326 * ratio of the estimated throughput per TTI of each user; therefore equally
327 * partitioning the whole bandwidth achievable from a single users in a TTI
328 */
329 for (int i = 0; i < m_nUser; i++)
330 {
331 NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
332 m_thrRefDl,
333 m_thrRefDl * tolerance,
334 " Unfair Throughput!");
335 }
336
337 /**
338 * Check that the uplink assignment is done in a "FD blind equal throughput" manner
339 */
340 NS_LOG_INFO("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
341 std::vector<uint64_t> ulDataRxed;
342 for (int i = 0; i < m_nUser; i++)
343 {
344 // get the imsi
345 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
346 // get the lcId
347 uint8_t lcId = 3;
348 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
349 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at(i)
350 << " thr " << (double)ulDataRxed.at(i) / statsDuration << " ref "
351 << m_thrRefUl);
352 }
353 /**
354 * Check that the assignment is done in a "FD blind equal throughput" manner among users
355 * with equal SINRs: the bandwidth should be distributed according to the
356 * ratio of the estimated throughput per TTI of each user; therefore equally
357 * partitioning the whole bandwidth achievable from a single users in a TTI
358 */
359 for (int i = 0; i < m_nUser; i++)
360 {
361 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
362 m_thrRefUl,
363 m_thrRefUl * tolerance,
364 " Unfair Throughput!");
365 }
366 Simulator::Destroy();
367}
368
369// --------------- T E S T - C A S E # 2 ------------------------------
370
371std::string
372LenaFdBetFfMacSchedulerTestCase2::BuildNameString(uint16_t nUser, std::vector<double> dist)
373{
374 std::ostringstream oss;
375 oss << "distances (m) = [ ";
376 for (auto it = dist.begin(); it != dist.end(); ++it)
377 {
378 oss << *it << " ";
379 }
380 oss << "]";
381 return oss.str();
382}
383
384LenaFdBetFfMacSchedulerTestCase2::LenaFdBetFfMacSchedulerTestCase2(
385 std::vector<double> dist,
386 std::vector<uint32_t> achievableRateDl,
387 std::vector<uint32_t> estThrFdBetUl,
388 bool errorModelEnabled)
389 : TestCase(BuildNameString(dist.size(), dist)),
390 m_nUser(dist.size()),
391 m_dist(dist),
392 m_achievableRateDl(achievableRateDl),
393 m_estThrFdBetUl(estThrFdBetUl),
394 m_errorModelEnabled(errorModelEnabled)
395{
396}
397
401
402void
403LenaFdBetFfMacSchedulerTestCase2::DoRun()
404{
405 NS_LOG_FUNCTION(this);
406
407 if (!m_errorModelEnabled)
408 {
409 Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
410 Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
411 }
412 Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(false));
413 Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
414 StringValue(CreateTempDirFilename("DlMacStats.txt")));
415 Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
416 StringValue(CreateTempDirFilename("UlMacStats.txt")));
417 Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
418 StringValue(CreateTempDirFilename("DlRlcStats.txt")));
419 Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
420 StringValue(CreateTempDirFilename("UlRlcStats.txt")));
421
422 /**
423 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
424 */
425
426 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
427
428 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
429
430 // Create Nodes: eNodeB and UE
431 NodeContainer enbNodes;
432 NodeContainer ueNodes;
433 enbNodes.Create(1);
434 ueNodes.Create(m_nUser);
435
436 // Install Mobility Model
437 MobilityHelper mobility;
438 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
439 mobility.Install(enbNodes);
440 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
441 mobility.Install(ueNodes);
442
443 // Create Devices and install them in the Nodes (eNB and UE)
444 NetDeviceContainer enbDevs;
445 NetDeviceContainer ueDevs;
446 lteHelper->SetSchedulerType("ns3::FdBetFfMacScheduler");
447 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
448 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
449 ueDevs = lteHelper->InstallUeDevice(ueNodes);
450
451 // Attach a UE to a eNB
452 lteHelper->Attach(ueDevs, enbDevs.Get(0));
453
454 // Activate an EPS bearer
455 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
456 EpsBearer bearer(q);
457 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
458
459 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
460 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
461 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
462 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
463
464 // Set UEs' position and power
465 for (int i = 0; i < m_nUser; i++)
466 {
467 Ptr<ConstantPositionMobilityModel> mm =
468 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
469 mm->SetPosition(Vector(m_dist.at(i), 0.0, 0.0));
470 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
471 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
472 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
473 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
474 }
475
476 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
477 double statsDuration = 0.4;
478 double tolerance = 0.1;
479 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
480
481 lteHelper->EnableMacTraces();
482 lteHelper->EnableRlcTraces();
483 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
484 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
485 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
486
487 Simulator::Run();
488
489 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s)");
490 std::vector<uint64_t> dlDataRxed;
491 double totalData = 0;
492 double estTotalThr = 0;
493 double estUeThr = 0;
494 for (int i = 0; i < m_nUser; i++)
495 {
496 // get the imsi
497 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
498 // get the lcId
499 uint8_t lcId = 3;
500 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
501 totalData += (double)dlDataRxed.at(i);
502 estTotalThr += 1 / m_achievableRateDl.at(i);
503 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " imsi " << imsi << " bytes rxed "
504 << (double)dlDataRxed.at(i) << " thr "
505 << (double)dlDataRxed.at(i) / statsDuration << " ref " << m_nUser);
506 }
507
508 estTotalThr = m_nUser * (1 / estTotalThr);
509 estUeThr = estTotalThr / m_nUser;
510 /**
511 * Check that the assignment is done in a "FD blind equal throughput" manner among users
512 * with different SINRs: the bandwidth should be distributed equally in long term
513 */
514 for (int i = 0; i < m_nUser; i++)
515 {
516 double thrRatio = 1.0 / m_nUser;
517 double estThrRatio = (double)dlDataRxed.at(i) / totalData;
518 NS_LOG_INFO("\tUser " << i << " thrRatio " << thrRatio << " estThrRatio " << estThrRatio);
519 NS_TEST_ASSERT_MSG_EQ_TOL(estThrRatio, thrRatio, tolerance, " Unfair Throughput!");
520 NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
521 estUeThr,
522 estUeThr * tolerance,
523 " Unfair Throughput!");
524 }
525
526 /**
527 * Check that the assignment in uplink is done in a round robin manner.
528 */
529
530 NS_LOG_INFO("UL - Test with " << m_nUser);
531 std::vector<uint64_t> ulDataRxed;
532 for (int i = 0; i < m_nUser; i++)
533 {
534 // get the imsi
535 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
536 // get the lcId
537 uint8_t lcId = 3;
538 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
539 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " bytes rxed "
540 << (double)ulDataRxed.at(i) << " thr "
541 << (double)ulDataRxed.at(i) / statsDuration << " ref "
542 << (double)m_estThrFdBetUl.at(i));
543 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
544 (double)m_estThrFdBetUl.at(i),
545 (double)m_estThrFdBetUl.at(i) * tolerance,
546 " Unfair Throughput!");
547 }
548 Simulator::Destroy();
549}
LenaFdBetFfMacSchedulerTestCase1
This system test program creates different test cases with a single eNB and several UEs,...
Definition lte-test-fdbet-ff-mac-scheduler.h:31
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:196
LenaFdBetFfMacSchedulerTestCase1::LenaFdBetFfMacSchedulerTestCase1
LenaFdBetFfMacSchedulerTestCase1(uint16_t nUser, double dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
Constructor.
Definition lte-test-fdbet-ff-mac-scheduler.cc:203
LenaFdBetFfMacSchedulerTestCase1::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-fdbet-ff-mac-scheduler.cc:222
LenaFdBetFfMacSchedulerTestCase2
Test case is similar to the one defined in LenaFdBetFfMacSchedulerTestCase1, with the difference that...
Definition lte-test-fdbet-ff-mac-scheduler.h:74
LenaFdBetFfMacSchedulerTestCase2::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-fdbet-ff-mac-scheduler.cc:403
LenaFdBetFfMacSchedulerTestCase2::m_errorModelEnabled
bool m_errorModelEnabled
specifies whether the error model is enabled
Definition lte-test-fdbet-ff-mac-scheduler.h:104
LenaFdBetFfMacSchedulerTestCase2::m_dist
std::vector< double > m_dist
distance between the nodes
Definition lte-test-fdbet-ff-mac-scheduler.h:101
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:372
LenaFdBetFfMacSchedulerTestCase2::m_achievableRateDl
std::vector< uint32_t > m_achievableRateDl
DL achievable rate.
Definition lte-test-fdbet-ff-mac-scheduler.h:102
LenaFdBetFfMacSchedulerTestCase2::m_estThrFdBetUl
std::vector< uint32_t > m_estThrFdBetUl
estimated throughput FDBET UL
Definition lte-test-fdbet-ff-mac-scheduler.h:103
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:384
LenaTestFdBetFfMacSchedulerSuite
Test suite for FDBetFfMacScheduler test case.
Definition lte-test-fdbet-ff-mac-scheduler.h:114
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::NetDeviceContainer
holds a vector of ns3::NetDevice pointers
Definition net-device-container.h:32
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:56
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::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:67
ns3::Object::GetObject
Ptr< T > GetObject() const
Get a pointer to the requested aggregated Object.
Definition object.h:511
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition mpi-test-fixtures.h:37
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::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_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
lenaTestFdBetFfMacSchedulerSuite
static LenaTestFdBetFfMacSchedulerSuite lenaTestFdBetFfMacSchedulerSuite
Static variable for test initialization.
Definition lte-test-fdbet-ff-mac-scheduler.cc:191
ns3::CreateObject
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Definition object.h:619
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:1308
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.