1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3 * Copyright (c) 2011, 2012 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 */
21
22 #include <ns3/object.h>
23 #include <ns3/spectrum-interference.h>
24 #include <ns3/spectrum-error-model.h>
25 #include <ns3/log.h>
26 #include <ns3/test.h>
27 #include <ns3/simulator.h>
28 #include <ns3/packet.h>
29 #include <ns3/ptr.h>
30 #include <iostream>
31 #include "ns3/radio-bearer-stats-calculator.h"
32 #include <ns3/constant-position-mobility-model.h>
33 #include <ns3/ff-mac-scheduler.h>
34 #include <ns3/eps-bearer.h>
35 #include <ns3/node-container.h>
36 #include <ns3/mobility-helper.h>
37 #include <ns3/net-device-container.h>
38 #include <ns3/lte-ue-net-device.h>
39 #include <ns3/lte-enb-net-device.h>
40 #include <ns3/lte-ue-rrc.h>
41 #include <ns3/lte-helper.h>
42 #include "ns3/string.h"
43 #include "ns3/double.h"
44 #include <ns3/lte-enb-phy.h>
45 #include <ns3/lte-ue-phy.h>
46 #include <ns3/boolean.h>
47 #include <ns3/enum.h>
48 #include <ns3/config-store-module.h>
49
50 #include "lte-test-rr-ff-mac-scheduler.h"
51
52 using namespace ns3;
53
54 NS_LOG_COMPONENT_DEFINE ("LenaTestRrFfMacScheduler");
55
LenaTestRrFfMacSchedulerSuite()56 LenaTestRrFfMacSchedulerSuite::LenaTestRrFfMacSchedulerSuite ()
57 : TestSuite ("lte-rr-ff-mac-scheduler", SYSTEM)
58 {
59 NS_LOG_INFO ("creating LenaRrFfMacSchedulerTestCase");
60
61 bool errorModel = true;
62
63
64 // DOWNLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
65 // 1 user -> 24 PRB at Itbs 26 -> 2196 -> 2196000 bytes/sec
66 // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
67 // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
68 // 9 user -> 2 PRB at Itbs 26 -> 185 -> 185000 bytes/sec
69 // 12 users -> 2 PRB at Itbs 26 -> 185 -> 185000 bytes/sec
70 // 15 users -> 2 PRB at Itbs 26 * 0.8 -> 148 -> 148000 bytes/sec
71 // UPLINK- DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.213)
72 // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 bytes/sec
73 // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 bytes/sec
74 // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 bytes/sec
75 // after the patch enforcing min 3 PRBs per UE:
76 // 9 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/9 UE/TTI -> 246220 bytes/sec
77 // 12 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/12 UE/TTI -> 184670 bytes/sec
78 // 15 users -> 3 PRB at Itbs 26 -> 277 bytes * 8/15 UE/TTI -> 147730 bytes/sec
79 AddTestCase (new LenaRrFfMacSchedulerTestCase (1,0,2196000,2292000,errorModel), TestCase::EXTENSIVE);
80 AddTestCase (new LenaRrFfMacSchedulerTestCase (3,0,749000,749000,errorModel), TestCase::QUICK);
81 AddTestCase (new LenaRrFfMacSchedulerTestCase (6,0,373000,373000,errorModel), TestCase::EXTENSIVE);
82 AddTestCase (new LenaRrFfMacSchedulerTestCase (9,0,185000,246220,errorModel), TestCase::EXTENSIVE);
83 AddTestCase (new LenaRrFfMacSchedulerTestCase (12,0,185000,184670,errorModel), TestCase::EXTENSIVE);
84 AddTestCase (new LenaRrFfMacSchedulerTestCase (15,0,148000,147730,errorModel), TestCase::EXTENSIVE);
85
86 // DOWNLINK - DISTANCE 4800 -> MCS 22 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
87 // 1 user -> 24 PRB at Itbs 20 -> 1383 -> 1383000 bytes/sec
88 // 3 users -> 8 PRB at Itbs 20 -> 469 -> 469000 bytes/sec
89 // 6 users -> 4 PRB at Itbs 20 -> 233 -> 233000 bytes/sec
90 // 9 user -> 2 PRB at Itbs 20 -> 113 -> 113000 bytes/sec
91 // 12 users -> 2 PRB at Itbs 20 -> 113 -> 113000 bytes/sec
92 // 15 users -> 2 PRB at Itbs 20 * 0.8 -> 90.4 -> 90400 bytes/sec
93 // UPLINK - DISTANCE 4800 -> MCS 14 -> Itbs 13 (from table 7.1.7.2.1-1 of 36.213)
94 // 1 user -> 25 PRB at Itbs 13 -> 807 -> 807000 bytes/sec
95 // 3 users -> 8 PRB at Itbs 13 -> 253 -> 253000 bytes/sec
96 // 6 users -> 4 PRB at Itbs 13 -> 125 -> 125000 bytes/sec
97 // after the patch enforcing min 3 PRBs per UE:
98 // 9 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/9 UE/TTI -> 82667 bytes/sec
99 // 12 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/12 UE/TTI -> 62000 bytes/sec
100 // 15 users -> 3 PRB at Itbs 13 -> 93 bytes * 8/15 UE/TTI -> 49600 bytes/sec
101 AddTestCase (new LenaRrFfMacSchedulerTestCase (1,4800,1383000,807000,errorModel), TestCase::EXTENSIVE);
102 AddTestCase (new LenaRrFfMacSchedulerTestCase (3,4800,469000,253000,errorModel), TestCase::EXTENSIVE);
103 AddTestCase (new LenaRrFfMacSchedulerTestCase (6,4800,233000,125000,errorModel), TestCase::EXTENSIVE);
104 AddTestCase (new LenaRrFfMacSchedulerTestCase (9,4800,113000,82667,errorModel), TestCase::EXTENSIVE);
105 AddTestCase (new LenaRrFfMacSchedulerTestCase (12,4800,113000,62000,errorModel), TestCase::EXTENSIVE);
106 AddTestCase (new LenaRrFfMacSchedulerTestCase (15,4800,90400,49600,errorModel), TestCase::EXTENSIVE);
107
108 // DOWNLINK - DISTANCE 6000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
109 // 1 user -> 24 PRB at Itbs 15 -> 1191 -> 1191000 bytes/sec
110 // 3 users -> 8 PRB at Itbs 15 -> 389 -> 389000 bytes/sec
111 // 6 users -> 4 PRB at Itbs 15 -> 193 -> 193000 bytes/sec
112 // 9 user -> 2 PRB at Itbs 15 -> 97 -> 97000 bytes/sec
113 // 12 users -> 2 PRB at Itbs 15 -> 97 -> 97000 bytes/sec
114 // 15 users -> 2 PRB at Itbs 15 * 0.8 -> 77.6 -> 77600 bytes/sec
115 // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
116 // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 bytes/sec
117 // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 bytes/sec
118 // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 bytes/sec
119 // 9 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/9 UE/TTI -> 64889 bytes/sec
120 // 12 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/12 UE/TTI -> 48667 bytes/sec
121 // 15 users -> 3 PRB at Itbs 11 -> 73 bytes * 8/15 UE/TTI -> 38993 bytes/sec
122 AddTestCase (new LenaRrFfMacSchedulerTestCase (1,6000,1191000,621000,errorModel), TestCase::EXTENSIVE);
123 AddTestCase (new LenaRrFfMacSchedulerTestCase (3,6000,389000,201000,errorModel), TestCase::EXTENSIVE);
124 AddTestCase (new LenaRrFfMacSchedulerTestCase (6,6000,193000,97000,errorModel), TestCase::EXTENSIVE);
125 AddTestCase (new LenaRrFfMacSchedulerTestCase (9,6000,97000,64889,errorModel), TestCase::EXTENSIVE);
126 AddTestCase (new LenaRrFfMacSchedulerTestCase (12,6000,97000,48667,errorModel), TestCase::EXTENSIVE);
127 AddTestCase (new LenaRrFfMacSchedulerTestCase (15,6000,77600,38993,errorModel), TestCase::EXTENSIVE);
128
129 // DOWNLINK - DISTANCE 20000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
130 // 1 user -> 24 PRB at Itbs 8 -> 421 -> 421000 bytes/sec
131 // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 bytes/sec
132 // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 bytes/sec
133 // 9 user -> 2 PRB at Itbs 8 -> 32 -> 32000 bytes/sec
134 // 12 users -> 2 PRB at Itbs 8 -> 32 -> 32000 bytes/sec
135 // 15 users -> 2 PRB at Itbs 8 * 0.8 -> 25.6 -> 25600 bytes/sec
136 // UPLINK - DISTANCE 20000 -> MCS 2 -> Itbs 2 (from table 7.1.7.2.1-1 of 36.213)
137 // 1 user -> 25 PRB at Itbs 2 -> 137 -> 137000 bytes/sec
138 // 3 users -> 8 PRB at Itbs 2 -> 41 -> 41000 bytes/sec
139 // 6 users -> 4 PRB at Itbs 2 -> 22 -> 22000 bytes/sec
140 // after the patch enforcing min 3 PRBs per UE:
141 // 9 users -> 3 PRB at Itbs 2 -> 18 bytes * 8/9 UE/TTI -> 16000 bytes/sec
142 // 12 users -> 3 PRB at Itbs 2 -> 18 bytes * 8/12 UE/TTI -> 12000 bytes/sec
143 // 15 users -> 3 PRB at Itbs 2 -> 18 bytes * 8/15 UE/TTI -> 9600 bytes/sec
144 AddTestCase (new LenaRrFfMacSchedulerTestCase (1,20000,421000,137000,errorModel), TestCase::EXTENSIVE);
145 AddTestCase (new LenaRrFfMacSchedulerTestCase (3,20000,137000,41000,errorModel), TestCase::EXTENSIVE);
146 AddTestCase (new LenaRrFfMacSchedulerTestCase (6,20000,67000,22000,errorModel), TestCase::EXTENSIVE);
147 AddTestCase (new LenaRrFfMacSchedulerTestCase (9,20000,32000,16000,errorModel), TestCase::EXTENSIVE);
148 AddTestCase (new LenaRrFfMacSchedulerTestCase (12,20000,32000,12000,errorModel), TestCase::EXTENSIVE);
149 AddTestCase (new LenaRrFfMacSchedulerTestCase (15,20000,25600,9600,errorModel), TestCase::EXTENSIVE);
150
151 // DOWNLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
152 // UPLINK - DISTANCE 100000 -> CQI == 0 -> out of range -> 0 bytes/sec
153 AddTestCase (new LenaRrFfMacSchedulerTestCase (1,100000,0,0,errorModel), TestCase::QUICK);
154 }
155
156 static LenaTestRrFfMacSchedulerSuite lenaTestRrFfMacSchedulerSuite;
157
158 std::string
BuildNameString(uint16_t nUser,double dist)159 LenaRrFfMacSchedulerTestCase::BuildNameString (uint16_t nUser, double dist)
160 {
161 std::ostringstream oss;
162 oss << nUser << " UEs, distance " << dist << " m";
163 return oss.str ();
164 }
165
LenaRrFfMacSchedulerTestCase(uint16_t nUser,double dist,double thrRefDl,double thrRefUl,bool errorModelEnabled)166 LenaRrFfMacSchedulerTestCase::LenaRrFfMacSchedulerTestCase (uint16_t nUser, double dist, double thrRefDl, double thrRefUl, bool errorModelEnabled)
167 : TestCase (BuildNameString (nUser, dist)),
168 m_nUser (nUser),
169 m_dist (dist),
170 m_thrRefDl (thrRefDl),
171 m_thrRefUl (thrRefUl),
172 m_errorModelEnabled (errorModelEnabled)
173 {
174 }
175
~LenaRrFfMacSchedulerTestCase()176 LenaRrFfMacSchedulerTestCase::~LenaRrFfMacSchedulerTestCase ()
177 {
178 }
179
180 void
DoRun(void)181 LenaRrFfMacSchedulerTestCase::DoRun (void)
182 {
183 NS_LOG_FUNCTION (this << m_nUser << m_dist);
184 if (!m_errorModelEnabled)
185 {
186 Config::SetDefault ("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue (false));
187 Config::SetDefault ("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue (false));
188 }
189 Config::SetDefault ("ns3::LteHelper::UseIdealRrc", BooleanValue (false));
190 Config::SetDefault ("ns3::MacStatsCalculator::DlOutputFilename", StringValue (CreateTempDirFilename ("DlMacStats.txt")));
191 Config::SetDefault ("ns3::MacStatsCalculator::UlOutputFilename", StringValue (CreateTempDirFilename ("UlMacStats.txt")));
192 Config::SetDefault ("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename", StringValue (CreateTempDirFilename ("DlRlcStats.txt")));
193 Config::SetDefault ("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename", StringValue (CreateTempDirFilename ("UlRlcStats.txt")));
194
195 // This is needed as the RR scheduler does not allocate resources properly for retransmission
196 Config::SetDefault ("ns3::LteRlcAm::TxOpportunityForRetxAlwaysBigEnough", BooleanValue (true));
197
198 //Disable Uplink Power Control
199 Config::SetDefault ("ns3::LteUePhy::EnableUplinkPowerControl", BooleanValue (false));
200
201 /**
202 * Initialize Simulation Scenario: 1 eNB and m_nUser UEs
203 */
204
205 Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
206
207 lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
208
209 // Create Nodes: eNodeB and UE
210 NodeContainer enbNodes;
211 NodeContainer ueNodes;
212 enbNodes.Create (1);
213 ueNodes.Create (m_nUser);
214
215 // Install Mobility Model
216 MobilityHelper mobility;
217 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
218 mobility.Install (enbNodes);
219 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
220 mobility.Install (ueNodes);
221
222 // Create Devices and install them in the Nodes (eNB and UE)
223 NetDeviceContainer enbDevs;
224 NetDeviceContainer ueDevs;
225 lteHelper->SetSchedulerType ("ns3::RrFfMacScheduler");
226 lteHelper->SetSchedulerAttribute ("UlCqiFilter", EnumValue (FfMacScheduler::SRS_UL_CQI));
227 enbDevs = lteHelper->InstallEnbDevice (enbNodes);
228 ueDevs = lteHelper->InstallUeDevice (ueNodes);
229
230 // Attach a UE to a eNB
231 lteHelper->Attach (ueDevs, enbDevs.Get (0));
232
233 // Activate an EPS bearer
234 enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
235 EpsBearer bearer (q);
236 lteHelper->ActivateDataRadioBearer (ueDevs, bearer);
237
238
239 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
240 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
241 enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
242 enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
243
244 // Set UEs' position and power
245 for (int i = 0; i < m_nUser; i++)
246 {
247 Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
248 mm->SetPosition (Vector (m_dist, 0.0, 0.0));
249 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
250 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
251 uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
252 uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
253 }
254
255
256 double statsStartTime = 0.300; // need to allow for RRC connection establishment + SRS
257 double statsDuration = 0.4;
258 double tolerance = 0.1;
259 Simulator::Stop (Seconds (statsStartTime + statsDuration - 0.0001));
260
261 lteHelper->EnableRlcTraces ();
262 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
263 rlcStats->SetAttribute ("StartTime", TimeValue (Seconds (statsStartTime)));
264 rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (statsDuration)));
265
266 Simulator::Run ();
267
268 /**
269 * Check that the assignment is done in a RR fashion
270 */
271 NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
272 std::vector <uint64_t> dlDataRxed;
273 if (m_errorModelEnabled)
274 {
275 m_thrRefDl *= 0.95; // for couting the Vienna AMC behavior: BLER between 0% and 10%
276 }
277 for (int i = 0; i < m_nUser; i++)
278 {
279 // get the imsi
280 uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
281 uint8_t lcId = 3;
282 dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
283 NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " lcid " << (uint16_t) lcId << " bytes rxed " << (double)dlDataRxed.at (i) << " thr " << (double)dlDataRxed.at (i) / statsDuration << " ref " << m_thrRefDl);
284 NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataRxed.at (i) / statsDuration, m_thrRefDl, m_thrRefDl * tolerance, " Unfair Throughput!");
285 }
286
287 NS_LOG_INFO ("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
288 std::vector <uint64_t> ulDataRxed;
289 if (m_errorModelEnabled)
290 {
291 m_thrRefUl *= 0.95; // for couting the Vienna AMC behavior: BLER between 0% and 10%
292 }
293 for (int i = 0; i < m_nUser; i++)
294 {
295 // get the imsi
296 uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
297 // get the lcId
298 uint8_t lcId = 3;
299 ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
300 NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " lcid " << (uint16_t) lcId << " bytes rxed " << (double)ulDataRxed.at (i) << " thr " << (double)ulDataRxed.at (i) / statsDuration << " ref " << m_thrRefUl << " txed " << rlcStats->GetUlTxData (imsi, lcId) / statsDuration);
301 NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / statsDuration, m_thrRefUl, m_thrRefUl * tolerance, " Unfair Throughput!");
302 }
303
304 Simulator::Destroy ();
305 }
306