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:Gaurav Sathe <gaurav.sathe@tcs.com>
19 */
20
21 #include <iostream>
22 #include <sstream>
23 #include <string>
24
25 #include <ns3/object.h>
26 #include <ns3/spectrum-interference.h>
27 #include <ns3/spectrum-error-model.h>
28 #include <ns3/log.h>
29 #include <ns3/test.h>
30 #include <ns3/simulator.h>
31 #include <ns3/packet.h>
32 #include <ns3/ptr.h>
33 #include "ns3/radio-bearer-stats-calculator.h"
34 #include <ns3/constant-position-mobility-model.h>
35 #include <ns3/eps-bearer.h>
36 #include <ns3/node-container.h>
37 #include <ns3/mobility-helper.h>
38 #include <ns3/net-device-container.h>
39 #include <ns3/lte-ue-net-device.h>
40 #include <ns3/lte-enb-net-device.h>
41 #include <ns3/lte-ue-rrc.h>
42 #include <ns3/lte-helper.h>
43 #include "ns3/string.h"
44 #include "ns3/double.h"
45 #include <ns3/lte-enb-phy.h>
46 #include <ns3/lte-ue-phy.h>
47 #include <ns3/boolean.h>
48 #include <ns3/enum.h>
49
50 #include "ns3/point-to-point-epc-helper.h"
51 #include "ns3/network-module.h"
52 #include "ns3/ipv4-global-routing-helper.h"
53 #include "ns3/internet-module.h"
54 #include "ns3/applications-module.h"
55 #include "ns3/point-to-point-helper.h"
56
57 #include "lte-test-deactivate-bearer.h"
58
59 NS_LOG_COMPONENT_DEFINE ("LenaTestDeactivateBearer");
60
61 namespace ns3 {
62
LenaTestBearerDeactivateSuite()63 LenaTestBearerDeactivateSuite::LenaTestBearerDeactivateSuite ()
64 : TestSuite ("lte-test-deactivate-bearer", SYSTEM)
65 {
66 NS_LOG_INFO ("creating LenaTestPssFfMacSchedulerSuite");
67
68 bool errorModel = false;
69
70 // Test Case: homogeneous flow test in PSS (different distance)
71 // Traffic1 info
72 // UDP traffic: payload size = 100 bytes, interval = 1 ms
73 // UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 132000 byte/rate
74 // Maximum throughput = 3 / ( 1/2196000 + 1/1191000 + 1/1383000) = 1486569 byte/s
75 // 132000 * 3 = 396000 < 1209046 -> estimated throughput in downlink = 132000 byte/sec
76 std::vector<uint16_t> dist_1;
77
78 dist_1.push_back (0); // User 0 distance --> MCS 28
79 dist_1.push_back (0); // User 1 distance --> MCS 22
80 dist_1.push_back (0); // User 2 distance --> MCS 20
81
82 std::vector<uint16_t> packetSize_1;
83
84 packetSize_1.push_back (100); //1
85 packetSize_1.push_back (100); //2
86 packetSize_1.push_back (100); //3
87
88 std::vector<uint32_t> estThrPssDl_1;
89
90 estThrPssDl_1.push_back (132000); // User 0 estimated TTI throughput from PSS
91 estThrPssDl_1.push_back (132000); // User 1 estimated TTI throughput from PSS
92 estThrPssDl_1.push_back (132000); // User 2 estimated TTI throughput from PSS
93
94 AddTestCase (new LenaDeactivateBearerTestCase (dist_1,estThrPssDl_1,packetSize_1,1,errorModel,true), TestCase::QUICK);
95 }
96
97 static LenaTestBearerDeactivateSuite lenaTestBearerDeactivateSuite; ///< the test suite
98
99
100 std::string
BuildNameString(uint16_t nUser,std::vector<uint16_t> dist)101 LenaDeactivateBearerTestCase::BuildNameString (uint16_t nUser, std::vector<uint16_t> dist)
102 {
103 std::ostringstream oss;
104 oss << "distances (m) = [ ";
105 for (std::vector<uint16_t>::iterator it = dist.begin (); it != dist.end (); ++it)
106 {
107 oss << *it << " ";
108 }
109 oss << "]";
110 return oss.str ();
111 }
112
LenaDeactivateBearerTestCase(std::vector<uint16_t> dist,std::vector<uint32_t> estThrPssDl,std::vector<uint16_t> packetSize,uint16_t interval,bool errorModelEnabled,bool useIdealRrc)113 LenaDeactivateBearerTestCase::LenaDeactivateBearerTestCase (std::vector<uint16_t> dist, std::vector<uint32_t> estThrPssDl, std::vector<uint16_t> packetSize, uint16_t interval,bool errorModelEnabled, bool useIdealRrc)
114 : TestCase (BuildNameString (dist.size (), dist)),
115 m_nUser (dist.size ()),
116 m_dist (dist),
117 m_packetSize (packetSize),
118 m_interval (interval),
119 m_estThrPssDl (estThrPssDl),
120 m_errorModelEnabled (errorModelEnabled)
121 {
122 }
123
~LenaDeactivateBearerTestCase()124 LenaDeactivateBearerTestCase::~LenaDeactivateBearerTestCase ()
125 {
126 }
127
128 void
DoRun(void)129 LenaDeactivateBearerTestCase::DoRun (void)
130 {
131 if (!m_errorModelEnabled)
132 {
133 Config::SetDefault ("ns3::LteSpectrumPhy::CtrlErrorModelEnabled", BooleanValue (false));
134 Config::SetDefault ("ns3::LteSpectrumPhy::DataErrorModelEnabled", BooleanValue (false));
135 }
136
137 Config::SetDefault ("ns3::LteHelper::UseIdealRrc", BooleanValue (true));
138 Config::SetDefault ("ns3::RadioBearerStatsCalculator::DlRlcOutputFilename", StringValue (CreateTempDirFilename ("DlRlcStats.txt")));
139 Config::SetDefault ("ns3::RadioBearerStatsCalculator::UlRlcOutputFilename", StringValue (CreateTempDirFilename ("UlRlcStats.txt")));
140
141 Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
142 Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper> ();
143 lteHelper->SetEpcHelper (epcHelper);
144
145 Ptr<Node> pgw = epcHelper->GetPgwNode ();
146
147 // Create a single RemoteHost
148 NodeContainer remoteHostContainer;
149 remoteHostContainer.Create (1);
150 Ptr<Node> remoteHost = remoteHostContainer.Get (0);
151 InternetStackHelper internet;
152 internet.Install (remoteHostContainer);
153
154 // Create the Internet
155 PointToPointHelper p2ph;
156 p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
157 p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
158 p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.001)));
159 NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
160 Ipv4AddressHelper ipv4h;
161 ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
162 Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
163 // interface 0 is localhost, 1 is the p2p device
164 Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
165
166 Ipv4StaticRoutingHelper ipv4RoutingHelper;
167 Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
168 remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
169
170 // LogLevel logLevel = (LogLevel)(LOG_PREFIX_FUNC | LOG_PREFIX_TIME | LOG_LEVEL_ALL);
171
172 // LogComponentEnable ("LenaTestDeactivateBearer", LOG_LEVEL_ALL);
173 // LogComponentEnable ("LteHelper", logLevel);
174 // LogComponentEnable ("EpcHelper", logLevel);
175 // LogComponentEnable ("EpcEnbApplication", logLevel);
176 // LogComponentEnable ("EpcMmeApplication", logLevel);
177 // LogComponentEnable ("EpcPgwApplication", logLevel);
178 // LogComponentEnable ("EpcSgwApplication", logLevel);
179 // LogComponentEnable ("LteEnbRrc", logLevel);
180
181 lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
182
183 // Create Nodes: eNodeB and UE
184 NodeContainer enbNodes;
185 NodeContainer ueNodes;
186 enbNodes.Create (1);
187 ueNodes.Create (m_nUser);
188
189 // Install Mobility Model
190 MobilityHelper mobility;
191 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
192 mobility.Install (enbNodes);
193 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
194 mobility.Install (ueNodes);
195
196 // Create Devices and install them in the Nodes (eNB and UE)
197 NetDeviceContainer enbDevs;
198 NetDeviceContainer ueDevs;
199 lteHelper->SetSchedulerType ("ns3::PssFfMacScheduler");
200 enbDevs = lteHelper->InstallEnbDevice (enbNodes);
201 ueDevs = lteHelper->InstallUeDevice (ueNodes);
202
203 Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
204 Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
205 enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
206 enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
207
208 // Set UEs' position and power
209 for (int i = 0; i < m_nUser; i++)
210 {
211 Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
212 mm->SetPosition (Vector (m_dist.at (i), 0.0, 0.0));
213 Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
214 Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
215 uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
216 uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
217 }
218
219 // Install the IP stack on the UEs
220 internet.Install (ueNodes);
221 Ipv4InterfaceContainer ueIpIface;
222 ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueDevs));
223
224 // Assign IP address to UEs
225 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
226 {
227 Ptr<Node> ueNode = ueNodes.Get (u);
228 // Set the default gateway for the UE
229 Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
230 ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
231 }
232
233 // Attach a UE to a eNB
234 lteHelper->Attach (ueDevs, enbDevs.Get (0));
235
236 // Activate an EPS bearer on all UEs
237
238 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
239 {
240 Ptr<NetDevice> ueDevice = ueDevs.Get (u);
241 GbrQosInformation qos;
242 qos.gbrDl = (m_packetSize.at (u) + 32) * (1000 / m_interval) * 8; // bit/s, considering IP, UDP, RLC, PDCP header size
243 qos.gbrUl = (m_packetSize.at (u) + 32) * (1000 / m_interval) * 8;
244 qos.mbrDl = qos.gbrDl;
245 qos.mbrUl = qos.gbrUl;
246
247 enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
248 EpsBearer bearer (q, qos);
249 bearer.arp.priorityLevel = 15 - (u + 1);
250 bearer.arp.preemptionCapability = true;
251 bearer.arp.preemptionVulnerability = true;
252 lteHelper->ActivateDedicatedEpsBearer (ueDevice, bearer, EpcTft::Default ());
253 }
254
255
256 // Install downlink and uplink applications
257 uint16_t dlPort = 1234;
258 uint16_t ulPort = 2000;
259 PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
260 ApplicationContainer clientApps;
261 ApplicationContainer serverApps;
262
263 for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
264 {
265 ++ulPort;
266 serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get (u))); // receive packets from remotehost
267 PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
268 serverApps.Add (ulPacketSinkHelper.Install (remoteHost)); // receive packets from UEs
269
270 UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort); // uplink packets generator
271 dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds (m_interval)));
272 dlClient.SetAttribute ("MaxPackets", UintegerValue (1000000));
273 dlClient.SetAttribute ("PacketSize", UintegerValue (m_packetSize.at (u)));
274
275 UdpClientHelper ulClient (remoteHostAddr, ulPort); // downlink packets generator
276 ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds (m_interval)));
277 ulClient.SetAttribute ("MaxPackets", UintegerValue (1000000));
278 ulClient.SetAttribute ("PacketSize", UintegerValue (m_packetSize.at (u)));
279
280 clientApps.Add (dlClient.Install (remoteHost));
281 clientApps.Add (ulClient.Install (ueNodes.Get (u)));
282 }
283
284
285 serverApps.Start (Seconds (0.030));
286 clientApps.Start (Seconds (0.030));
287
288 double statsStartTime = 0.04; // need to allow for RRC connection establishment + SRS
289 double statsDuration = 1.0;
290 double tolerance = 0.1;
291
292 lteHelper->EnableRlcTraces ();
293 Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
294 rlcStats->SetAttribute ("StartTime", TimeValue (Seconds (statsStartTime)));
295 rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (statsDuration)));
296
297
298 //get ue device pointer for UE-ID 0 IMSI 1 and enb device pointer
299 Ptr<NetDevice> ueDevice = ueDevs.Get (0);
300 Ptr<NetDevice> enbDevice = enbDevs.Get (0);
301
302 /*
303 * Instantiate De-activation using Simulator::Schedule() method which will initiate bearer de-activation after deActivateTime
304 * Instantiate De-activation in sequence (Time const &time, MEM mem_ptr, OBJ obj, T1 a1, T2 a2, T3 a3)
305 */
306 Time deActivateTime (Seconds (1.5));
307 Simulator::Schedule (deActivateTime, &LteHelper::DeActivateDedicatedEpsBearer, lteHelper, ueDevice, enbDevice, 2);
308
309 //stop simulation after 3 seconds
310 Simulator::Stop (Seconds (3.0));
311
312 Simulator::Run ();
313
314 NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s)");
315 std::vector <uint64_t> dlDataRxed;
316 std::vector <uint64_t> dlDataTxed;
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 // lcId is hard-coded, since only one dedicated bearer is added
323 uint8_t lcId = 4;
324 dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
325 dlDataTxed.push_back (rlcStats->GetDlTxData (imsi, lcId));
326 NS_LOG_INFO ("\tUser " << i << " dist " << m_dist.at (i) << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << " thr " << (double)dlDataRxed.at (i) / statsDuration << " ref " << m_estThrPssDl.at (i));
327 NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes txed " << (double)dlDataTxed.at (i) << " thr " << (double)dlDataTxed.at (i) / statsDuration);
328 }
329
330 for (int i = 0; i < m_nUser; i++)
331 {
332 uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
333
334 /*
335 * For UE ID-0 IMSI 1, LCID=4 is deactivated hence If traffic seen on it, test case should fail
336 * Else For other UE's, test case should validate throughput
337 */
338 if (imsi == 1)
339 {
340 NS_TEST_ASSERT_MSG_EQ ((double)dlDataTxed.at (i), 0, "Invalid LCID in Statistics ");
341 }
342 else
343 {
344 NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataTxed.at (i) / statsDuration, m_estThrPssDl.at (i), m_estThrPssDl.at (i) * tolerance, " Unfair Throughput!");
345 }
346 }
347
348 Simulator::Destroy ();
349 }
350 }
351