A Discrete-Event Network Simulator
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lte-test-pf-ff-mac-scheduler.cc
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1/*
2 * Copyright (c) 2011, 2012 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 */
9
10#include "lte-test-pf-ff-mac-scheduler.h"
11
12#include "ns3/boolean.h"
13#include "ns3/constant-position-mobility-model.h"
14#include "ns3/double.h"
15#include "ns3/enum.h"
16#include "ns3/eps-bearer.h"
17#include "ns3/ff-mac-scheduler.h"
18#include "ns3/log.h"
19#include "ns3/lte-enb-net-device.h"
20#include "ns3/lte-enb-phy.h"
21#include "ns3/lte-helper.h"
22#include "ns3/lte-ue-net-device.h"
23#include "ns3/lte-ue-phy.h"
24#include "ns3/lte-ue-rrc.h"
25#include "ns3/mobility-helper.h"
26#include "ns3/net-device-container.h"
27#include "ns3/node-container.h"
28#include "ns3/object.h"
29#include "ns3/packet.h"
30#include "ns3/ptr.h"
31#include "ns3/radio-bearer-stats-calculator.h"
32#include "ns3/simulator.h"
33#include "ns3/spectrum-error-model.h"
34#include "ns3/spectrum-interference.h"
35#include "ns3/string.h"
36#include "ns3/test.h"
37
38#include <iostream>
39#include <sstream>
40#include <string>
41
42using namespace ns3;
43
44NS_LOG_COMPONENT_DEFINE("LenaTestPfFfMacScheduler");
45
46LenaTestPfFfMacSchedulerSuite::LenaTestPfFfMacSchedulerSuite()
47 : TestSuite("lte-pf-ff-mac-scheduler", Type::SYSTEM)
48{
49 NS_LOG_INFO("creating LenaTestPfFfMacSchedulerSuite");
50
51 bool errorModel = false;
52
53 // Test Case 1: AMC works in PF
54
55 // DOWNLINK - DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
56 // 1 user -> 24 PRB at Itbs 26 -> 2196 -> 2196000 bytes/sec
57 // 3 users -> 2196000 among 3 users -> 732000 bytes/sec
58 // 6 users -> 2196000 among 6 users -> 366000 bytes/sec
59 // 12 users -> 2196000 among 12 users -> 183000 bytes/sec
60 // 15 users -> 2196000 among 15 users -> 146400 bytes/sec
61 // UPLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
62 // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 bytes/sec
63 // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
64 // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
65 // after the patch enforcing min 3 PRBs per UE:
66 // 12 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/12 UE/TTI -> 184670 bytes/sec
67 // 15 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/15 UE/TTI -> 147730 bytes/sec
68 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 0, 2196000, 2292000, errorModel),
69 TestCase::Duration::EXTENSIVE);
70 AddTestCase(new LenaPfFfMacSchedulerTestCase1(3, 0, 732000, 749000, errorModel),
71 TestCase::Duration::EXTENSIVE);
72 AddTestCase(new LenaPfFfMacSchedulerTestCase1(6, 0, 366000, 373000, errorModel),
73 TestCase::Duration::EXTENSIVE);
74 AddTestCase(new LenaPfFfMacSchedulerTestCase1(12, 0, 183000, 184670, errorModel),
75 TestCase::Duration::EXTENSIVE);
76 AddTestCase(new LenaPfFfMacSchedulerTestCase1(15, 0, 146400, 147730, errorModel),
77 TestCase::Duration::EXTENSIVE);
78
79 // DOWNLINK - DISTANCE 4800 -> MCS 22 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
80 // 1 user -> 24 PRB at Itbs 15 -> 1383 -> 1383000 bytes/sec
81 // 3 users -> 1383000 among 3 users -> 461000 bytes/sec
82 // 6 users -> 1383000 among 6 users -> 230500 bytes/sec
83 // 12 users -> 1383000 among 12 users -> 115250 bytes/sec
84 // 15 users -> 1383000 among 15 users -> 92200 bytes/sec
85 // UPLINK - DISTANCE 4800 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
86 // 1 user -> 25 PRB at Itbs 13 -> 807 -> 807000 bytes/sec
87 // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
88 // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
89 // after the patch enforcing min 3 PRBs per UE:
90 // 12 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/12 UE/TTI -> 62000 bytes/sec
91 // 15 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/15 UE/TTI -> 49600 bytes/sec
92 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 4800, 1383000, 807000, errorModel),
93 TestCase::Duration::EXTENSIVE);
94 AddTestCase(new LenaPfFfMacSchedulerTestCase1(3, 4800, 461000, 253000, errorModel),
95 TestCase::Duration::EXTENSIVE);
96 AddTestCase(new LenaPfFfMacSchedulerTestCase1(6, 4800, 230500, 125000, errorModel),
97 TestCase::Duration::EXTENSIVE);
98 AddTestCase(new LenaPfFfMacSchedulerTestCase1(12, 4800, 115250, 62000, errorModel),
99 TestCase::Duration::EXTENSIVE);
100 AddTestCase(new LenaPfFfMacSchedulerTestCase1(15, 4800, 92200, 49600, errorModel),
101 TestCase::Duration::EXTENSIVE);
102
103 // DOWNLINK - DISTANCE 6000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
104 // 1 user -> 24 PRB at Itbs 20 -> 1191 -> 1191000 bytes/sec
105 // 3 users -> 1191000 among 3 users -> 397000 bytes/sec
106 // 6 users -> 1191000 among 6 users -> 198500 bytes/sec
107 // 12 users -> 1191000 among 12 users -> 99250 bytes/sec
108 // 15 users -> 1191000 among 15 users -> 79400 bytes/sec
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 // 15 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/15 UE/TTI -> 38993 bytes/sec
116 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 6000, 1191000, 621000, errorModel),
117 TestCase::Duration::EXTENSIVE);
118 AddTestCase(new LenaPfFfMacSchedulerTestCase1(3, 6000, 397000, 201000, errorModel),
119 TestCase::Duration::EXTENSIVE);
120 AddTestCase(new LenaPfFfMacSchedulerTestCase1(6, 6000, 198500, 97000, errorModel),
121 TestCase::Duration::EXTENSIVE);
122 AddTestCase(new LenaPfFfMacSchedulerTestCase1(12, 6000, 99250, 48667, errorModel),
123 TestCase::Duration::EXTENSIVE);
124 AddTestCase(new LenaPfFfMacSchedulerTestCase1(15, 6000, 79400, 38993, errorModel),
125 TestCase::Duration::EXTENSIVE);
126
127 // DOWNLINK - DISTANCE 10000 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
128 // 1 user -> 24 PRB at Itbs 13 -> 871 -> 775000 bytes/sec
129 // 3 users -> 775000 among 3 users -> 258333 bytes/sec
130 // 6 users -> 775000 among 6 users -> 129167 bytes/sec
131 // 12 users -> 775000 among 12 users -> 64583 bytes/sec
132 // 15 users -> 775000 among 15 users -> 51667 bytes/sec
133 // UPLINK - DISTANCE 10000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
134 // 1 user -> 24 PRB at Itbs 8 -> 437 -> 437000 bytes/sec
135 // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
136 // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
137 // after the patch enforcing min 3 PRBs per UE:
138 // 12 users -> 3 PRB at Itbs 8 -> 49 bytes * 8/12 UE/TTI -> 32667 bytes/sec
139 // 15 users -> 3 PRB at Itbs 8 -> 49 bytes * 8/15 UE/TTI -> 26133 bytes/sec
140 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 10000, 775000, 437000, errorModel),
141 TestCase::Duration::EXTENSIVE);
142 AddTestCase(new LenaPfFfMacSchedulerTestCase1(3, 10000, 258333, 137000, errorModel),
143 TestCase::Duration::EXTENSIVE);
144 AddTestCase(new LenaPfFfMacSchedulerTestCase1(6, 10000, 129167, 67000, errorModel),
145 TestCase::Duration::EXTENSIVE);
146 AddTestCase(new LenaPfFfMacSchedulerTestCase1(12, 10000, 64583, 32667, errorModel),
147 TestCase::Duration::EXTENSIVE);
148 AddTestCase(new LenaPfFfMacSchedulerTestCase1(15, 10000, 51667, 26133, errorModel),
149 TestCase::Duration::EXTENSIVE);
150
151 // DONWLINK - DISTANCE 20000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
152 // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
153 // 3 users -> 421000 among 3 users -> 140333 bytes/sec
154 // 6 users -> 421000 among 6 users -> 70167 bytes/sec
155 // 12 users -> 421000 among 12 users -> 35083 bytes/sec
156 // 15 users -> 421000 among 15 users -> 28067 bytes/sec
157 // UPLINK - DISTANCE 20000 -> MCS 2 -> Itbs 2 (from table 7.1.7.2.1-1 of 36.213)
158 // 1 user -> 25 PRB at Itbs 2 -> 233 -> 137000 bytes/sec
159 // 3 users -> 8 PRB at Itbs 2 -> 69 -> 41000 bytes/sec
160 // 6 users -> 4 PRB at Itbs 2 -> 32 -> 22000 bytes/sec
161 // after the patch enforcing min 3 PRBs per UE:
162 // 12 users -> 3 PRB at Itbs 2 -> 26 bytes * 8/12 UE/TTI -> 12000 bytes/sec
163 // 15 users -> 3 PRB at Itbs 2 -> 26 bytes * 8/15 UE/TTI -> 9600 bytes/sec
164 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 20000, 421000, 137000, errorModel),
165 TestCase::Duration::EXTENSIVE);
166 AddTestCase(new LenaPfFfMacSchedulerTestCase1(3, 20000, 140333, 41000, errorModel),
167 TestCase::Duration::EXTENSIVE);
168 AddTestCase(new LenaPfFfMacSchedulerTestCase1(6, 20000, 70167, 22000, errorModel),
169 TestCase::Duration::EXTENSIVE);
170 AddTestCase(new LenaPfFfMacSchedulerTestCase1(12, 20000, 35083, 12000, errorModel),
171 TestCase::Duration::EXTENSIVE);
172 AddTestCase(new LenaPfFfMacSchedulerTestCase1(15, 20000, 28067, 9600, errorModel),
173 TestCase::Duration::EXTENSIVE);
174
175 // DOWNLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
176 // UPLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
177 AddTestCase(new LenaPfFfMacSchedulerTestCase1(1, 100000, 0, 0, errorModel),
178 TestCase::Duration::QUICK);
179
180 // Test Case 2: fairness check
181
182 std::vector<double> dist;
183 dist.push_back(0); // User 0 distance --> MCS 28
184 dist.push_back(4800); // User 1 distance --> MCS 22
185 dist.push_back(6000); // User 2 distance --> MCS 16
186 dist.push_back(10000); // User 3 distance --> MCS 8
187 dist.push_back(20000); // User 4 distance --> MCS 8
188 std::vector<uint32_t> estThrPfDl;
189 estThrPfDl.push_back(90000); // User 0 estimated TTI throughput from PF
190 estThrPfDl.push_back(37000); // User 1 estimated TTI throughput from PF
191 estThrPfDl.push_back(37000); // User 2 estimated TTI throughput from PF
192 estThrPfDl.push_back(17400); // User 3 estimated TTI throughput from PF
193 estThrPfDl.push_back(17400); // User 4 estimated TTI throughput from PF
194 std::vector<uint32_t> estThrPfUl;
195 estThrPfUl.push_back(469000); // User 0 estimated TTI throughput from PF
196 estThrPfUl.push_back(157000); // User 1 estimated TTI throughput from PF
197 estThrPfUl.push_back(125000); // User 2 estimated TTI throughput from PF
198 estThrPfUl.push_back(85000); // User 3 estimated TTI throughput from PF
199 estThrPfUl.push_back(26000); // User 4 estimated TTI throughput from PF
200 AddTestCase(new LenaPfFfMacSchedulerTestCase2(dist, estThrPfDl, estThrPfUl, errorModel),
201 TestCase::Duration::QUICK);
202}
203
204/**
205 * @ingroup lte-test
206 * Static variable for test initialization
207 */
208static LenaTestPfFfMacSchedulerSuite lenaTestPfFfMacSchedulerSuite;
209
210// --------------- T E S T - C A S E # 1 ------------------------------
211
212std::string
213LenaPfFfMacSchedulerTestCase1::BuildNameString(uint16_t nUser, double dist)
214{
215 std::ostringstream oss;
216 oss << nUser << " UEs, distance " << dist << " m";
217 return oss.str();
218}
219
220LenaPfFfMacSchedulerTestCase1::LenaPfFfMacSchedulerTestCase1(uint16_t nUser,
221 double dist,
222 double thrRefDl,
223 double thrRefUl,
224 bool errorModelEnabled)
225 : TestCase(BuildNameString(nUser, dist)),
226 m_nUser(nUser),
227 m_dist(dist),
228 m_thrRefDl(thrRefDl),
229 m_thrRefUl(thrRefUl),
230 m_errorModelEnabled(errorModelEnabled)
231{
232}
233
237
238void
239LenaPfFfMacSchedulerTestCase1::DoRun()
240{
241 NS_LOG_FUNCTION(this << m_nUser << m_dist);
242
243 if (!m_errorModelEnabled)
244 {
245 Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
246 Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
247 }
248 Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(true));
249 Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
250 StringValue(CreateTempDirFilename("DlMacStats.txt")));
251 Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
252 StringValue(CreateTempDirFilename("UlMacStats.txt")));
253 Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
254 StringValue(CreateTempDirFilename("DlRlcStats.txt")));
255 Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
256 StringValue(CreateTempDirFilename("UlRlcStats.txt")));
257
258 /**
259 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
260 */
261
262 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
263 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
264
265 // Create Nodes: eNodeB and UE
266 NodeContainer enbNodes;
267 NodeContainer ueNodes;
268 enbNodes.Create(1);
269 ueNodes.Create(m_nUser);
270
271 // Install Mobility Model
272 MobilityHelper mobility;
273 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
274 mobility.Install(enbNodes);
275 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
276 mobility.Install(ueNodes);
277
278 // Create Devices and install them in the Nodes (eNB and UE)
279 NetDeviceContainer enbDevs;
280 NetDeviceContainer ueDevs;
281 lteHelper->SetSchedulerType("ns3::PfFfMacScheduler");
282 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
283 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
284 ueDevs = lteHelper->InstallUeDevice(ueNodes);
285
286 // Attach a UE to a eNB
287 lteHelper->Attach(ueDevs, enbDevs.Get(0));
288
289 // Activate an EPS bearer
290 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
291 EpsBearer bearer(q);
292 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
293
294 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
295 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
296 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
297 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
298
299 // Set UEs' position and power
300 for (int i = 0; i < m_nUser; i++)
301 {
302 Ptr<ConstantPositionMobilityModel> mm =
303 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
304 mm->SetPosition(Vector(m_dist, 0.0, 0.0));
305 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
306 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
307 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
308 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
309 }
310
311 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
312 double statsDuration = 0.6;
313 double tolerance = 0.1;
314 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
315
316 lteHelper->EnableMacTraces();
317 lteHelper->EnableRlcTraces();
318 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
319 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
320 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
321
322 Simulator::Run();
323
324 /**
325 * Check that the downlink assignment is done in a "proportional fair" manner
326 */
327 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
328 std::vector<uint64_t> dlDataRxed;
329 for (int i = 0; i < m_nUser; i++)
330 {
331 // get the imsi
332 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
333 uint8_t lcId = 3;
334 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
335 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at(i)
336 << " thr " << (double)dlDataRxed.at(i) / statsDuration << " ref "
337 << m_thrRefDl);
338 }
339 /**
340 * Check that the assignment is done in a "proportional fair" manner among users
341 * with equal SINRs: the bandwidth should be distributed according to the
342 * ratio of the estimated throughput per TTI of each user; therefore equally
343 * partitioning the whole bandwidth achievable from a single users in a TTI
344 */
345 for (int i = 0; i < m_nUser; i++)
346 {
347 NS_TEST_ASSERT_MSG_EQ_TOL((double)dlDataRxed.at(i) / statsDuration,
348 m_thrRefDl,
349 m_thrRefDl * tolerance,
350 " Unfair Throughput!");
351 }
352
353 /**
354 * Check that the uplink assignment is done in a "proportional fair" manner
355 */
356 NS_LOG_INFO("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
357 std::vector<uint64_t> ulDataRxed;
358 for (int i = 0; i < m_nUser; i++)
359 {
360 // get the imsi
361 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
362 // get the lcId
363 uint8_t lcId = 3;
364 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
365 NS_LOG_INFO("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at(i)
366 << " thr " << (double)ulDataRxed.at(i) / statsDuration << " ref "
367 << m_thrRefUl);
368 }
369 /**
370 * Check that the assignment is done in a "proportional fair" manner among users
371 * with equal SINRs: the bandwidth should be distributed according to the
372 * ratio of the estimated throughput per TTI of each user; therefore equally
373 * partitioning the whole bandwidth achievable from a single users in a TTI
374 */
375 for (int i = 0; i < m_nUser; i++)
376 {
377 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
378 m_thrRefUl,
379 m_thrRefUl * tolerance,
380 " Unfair Throughput!");
381 }
382 Simulator::Destroy();
383}
384
385// --------------- T E S T - C A S E # 2 ------------------------------
386
387std::string
388LenaPfFfMacSchedulerTestCase2::BuildNameString(uint16_t nUser, std::vector<double> dist)
389{
390 std::ostringstream oss;
391 oss << "distances (m) = [ ";
392 for (auto it = dist.begin(); it != dist.end(); ++it)
393 {
394 oss << *it << " ";
395 }
396 oss << "]";
397 return oss.str();
398}
399
400LenaPfFfMacSchedulerTestCase2::LenaPfFfMacSchedulerTestCase2(std::vector<double> dist,
401 std::vector<uint32_t> estThrPfDl,
402 std::vector<uint32_t> estThrPfUl,
403 bool errorModelEnabled)
404 : TestCase(BuildNameString(dist.size(), dist)),
405 m_nUser(dist.size()),
406 m_dist(dist),
407 m_estThrPfDl(estThrPfDl),
408 m_estThrPfUl(estThrPfUl),
409 m_errorModelEnabled(errorModelEnabled)
410{
411}
412
416
417void
418LenaPfFfMacSchedulerTestCase2::DoRun()
419{
420 NS_LOG_FUNCTION(this);
421 if (!m_errorModelEnabled)
422 {
423 Config::SetDefault("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue(false));
424 Config::SetDefault("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue(false));
425 }
426 Config::SetDefault("ns3::LteHelper::UseIdealRrc", BooleanValue(false));
427 Config::SetDefault("ns3::MacStatsCalculator::DlOutputFilename",
428 StringValue(CreateTempDirFilename("DlMacStats.txt")));
429 Config::SetDefault("ns3::MacStatsCalculator::UlOutputFilename",
430 StringValue(CreateTempDirFilename("UlMacStats.txt")));
431 Config::SetDefault("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename",
432 StringValue(CreateTempDirFilename("DlRlcStats.txt")));
433 Config::SetDefault("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename",
434 StringValue(CreateTempDirFilename("UlRlcStats.txt")));
435
436 /**
437 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
438 */
439
440 Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();
441
442 lteHelper->SetAttribute("PathlossModel", StringValue("ns3::FriisSpectrumPropagationLossModel"));
443
444 // Create Nodes: eNodeB and UE
445 NodeContainer enbNodes;
446 NodeContainer ueNodes;
447 enbNodes.Create(1);
448 ueNodes.Create(m_nUser);
449
450 // Install Mobility Model
451 MobilityHelper mobility;
452 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
453 mobility.Install(enbNodes);
454 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
455 mobility.Install(ueNodes);
456
457 // Create Devices and install them in the Nodes (eNB and UE)
458 NetDeviceContainer enbDevs;
459 NetDeviceContainer ueDevs;
460 lteHelper->SetSchedulerType("ns3::PfFfMacScheduler");
461 lteHelper->SetSchedulerAttribute("UlCqiFilter", EnumValue(FfMacScheduler::SRS_UL_CQI));
462 enbDevs = lteHelper->InstallEnbDevice(enbNodes);
463 ueDevs = lteHelper->InstallUeDevice(ueNodes);
464
465 // Attach a UE to a eNB
466 lteHelper->Attach(ueDevs, enbDevs.Get(0));
467
468 // Activate an EPS bearer
469 EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
470 EpsBearer bearer(q);
471 lteHelper->ActivateDataRadioBearer(ueDevs, bearer);
472
473 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get(0)->GetObject<LteEnbNetDevice>();
474 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy();
475 enbPhy->SetAttribute("TxPower", DoubleValue(30.0));
476 enbPhy->SetAttribute("NoiseFigure", DoubleValue(5.0));
477
478 // Set UEs' position and power
479 for (int i = 0; i < m_nUser; i++)
480 {
481 Ptr<ConstantPositionMobilityModel> mm =
482 ueNodes.Get(i)->GetObject<ConstantPositionMobilityModel>();
483 mm->SetPosition(Vector(m_dist.at(i), 0.0, 0.0));
484 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get(i)->GetObject<LteUeNetDevice>();
485 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy();
486 uePhy->SetAttribute("TxPower", DoubleValue(23.0));
487 uePhy->SetAttribute("NoiseFigure", DoubleValue(9.0));
488 }
489
490 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
491 double statsDuration = 0.4;
492 double tolerance = 0.1;
493 Simulator::Stop(Seconds(statsStartTime + statsDuration - 0.000001));
494
495 lteHelper->EnableRlcTraces();
496 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats();
497 rlcStats->SetAttribute("StartTime", TimeValue(Seconds(statsStartTime)));
498 rlcStats->SetAttribute("EpochDuration", TimeValue(Seconds(statsDuration)));
499
500 Simulator::Run();
501
502 NS_LOG_INFO("DL - Test with " << m_nUser << " user(s)");
503 std::vector<uint64_t> dlDataRxed;
504 double totalData = 0;
505 double totalEstThrPf = 0;
506 for (int i = 0; i < m_nUser; i++)
507 {
508 // get the imsi
509 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
510 // get the lcId
511 uint8_t lcId = 3;
512 dlDataRxed.push_back(rlcStats->GetDlRxData(imsi, lcId));
513 totalData += (double)dlDataRxed.at(i);
514 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " imsi " << imsi << " bytes rxed "
515 << (double)dlDataRxed.at(i) << " thr "
516 << (double)dlDataRxed.at(i) / statsDuration);
517 totalEstThrPf += m_estThrPfDl.at(i);
518 }
519
520 /**
521 * Check that the assignment is done in a "proportional fair" manner among users
522 * with different SINRs: the bandwidth should be distributed according to the
523 * ratio of the estimated throughput per TTI of each user.
524 */
525 for (int i = 0; i < m_nUser; i++)
526 {
527 double thrRatio = (double)dlDataRxed.at(i) / totalData;
528 double estThrRatio = (double)m_estThrPfDl.at(i) / totalEstThrPf;
529 NS_LOG_INFO("\tUser " << i << " thrRatio " << thrRatio << " estThrRatio " << estThrRatio);
530 NS_TEST_ASSERT_MSG_EQ_TOL(estThrRatio, thrRatio, tolerance, " Unfair Throughput!");
531 }
532
533 /**
534 * Check that the assignment in uplink is done in a round robin manner.
535 */
536
537 NS_LOG_INFO("UL - Test with " << m_nUser);
538 std::vector<uint64_t> ulDataRxed;
539 for (int i = 0; i < m_nUser; i++)
540 {
541 // get the imsi
542 uint64_t imsi = ueDevs.Get(i)->GetObject<LteUeNetDevice>()->GetImsi();
543 // get the lcId
544 uint8_t lcId = 3;
545 ulDataRxed.push_back(rlcStats->GetUlRxData(imsi, lcId));
546 NS_LOG_INFO("\tUser " << i << " dist " << m_dist.at(i) << " bytes rxed "
547 << (double)ulDataRxed.at(i) << " thr "
548 << (double)ulDataRxed.at(i) / statsDuration << " ref "
549 << (double)m_estThrPfUl.at(i));
550 NS_TEST_ASSERT_MSG_EQ_TOL((double)ulDataRxed.at(i) / statsDuration,
551 (double)m_estThrPfUl.at(i),
552 (double)m_estThrPfUl.at(i) * tolerance,
553 " Unfair Throughput!");
554 }
555 Simulator::Destroy();
556}
LenaPfFfMacSchedulerTestCase1
This system test program creates different test cases with a single eNB and several UEs,...
Definition lte-test-pf-ff-mac-scheduler.h:30
LenaPfFfMacSchedulerTestCase1::BuildNameString
static std::string BuildNameString(uint16_t nUser, double dist)
Build name string.
Definition lte-test-pf-ff-mac-scheduler.cc:213
LenaPfFfMacSchedulerTestCase1::m_errorModelEnabled
bool m_errorModelEnabled
whether error model is enabled
Definition lte-test-pf-ff-mac-scheduler.h:61
LenaPfFfMacSchedulerTestCase1::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-pf-ff-mac-scheduler.cc:239
LenaPfFfMacSchedulerTestCase1::m_thrRefUl
double m_thrRefUl
the UL throughput reference
Definition lte-test-pf-ff-mac-scheduler.h:60
LenaPfFfMacSchedulerTestCase1::m_thrRefDl
double m_thrRefDl
the DL throughput reference
Definition lte-test-pf-ff-mac-scheduler.h:59
LenaPfFfMacSchedulerTestCase1::LenaPfFfMacSchedulerTestCase1
LenaPfFfMacSchedulerTestCase1(uint16_t nUser, double dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
Constructor.
Definition lte-test-pf-ff-mac-scheduler.cc:220
LenaPfFfMacSchedulerTestCase1::m_dist
double m_dist
the distance between nodes
Definition lte-test-pf-ff-mac-scheduler.h:58
LenaPfFfMacSchedulerTestCase2
Lena PfFf Mac Scheduler Test Case 2.
Definition lte-test-pf-ff-mac-scheduler.h:70
LenaPfFfMacSchedulerTestCase2::LenaPfFfMacSchedulerTestCase2
LenaPfFfMacSchedulerTestCase2(std::vector< double > dist, std::vector< uint32_t > estThrPfDl, std::vector< uint32_t > estThrPfUl, bool errorModelEnabled)
Constructor.
Definition lte-test-pf-ff-mac-scheduler.cc:400
LenaPfFfMacSchedulerTestCase2::m_estThrPfUl
std::vector< uint32_t > m_estThrPfUl
the estimated UL throughput
Definition lte-test-pf-ff-mac-scheduler.h:98
LenaPfFfMacSchedulerTestCase2::m_errorModelEnabled
bool m_errorModelEnabled
indicates whether the error model is enabled
Definition lte-test-pf-ff-mac-scheduler.h:99
LenaPfFfMacSchedulerTestCase2::m_estThrPfDl
std::vector< uint32_t > m_estThrPfDl
the estimated DL throughput
Definition lte-test-pf-ff-mac-scheduler.h:97
LenaPfFfMacSchedulerTestCase2::m_dist
std::vector< double > m_dist
the distance between nodes
Definition lte-test-pf-ff-mac-scheduler.h:96
LenaPfFfMacSchedulerTestCase2::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-pf-ff-mac-scheduler.cc:388
LenaPfFfMacSchedulerTestCase2::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition lte-test-pf-ff-mac-scheduler.cc:418
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_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
lenaTestPfFfMacSchedulerSuite
static LenaTestPfFfMacSchedulerSuite lenaTestPfFfMacSchedulerSuite
Static variable for test initialization.
Definition lte-test-pf-ff-mac-scheduler.cc:208
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.