Add pathloss test

14 years ago · 933945d1ed
3 changed files with 331 additions and 0 deletions
--- a/src/lte/test/lte-test-pathloss-model.cc
+++ b/src/lte/test/lte-test-pathloss-model.cc
@ -0,0 +1,272 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ */
+
+#include "ns3/simulator.h"
+
+#include "ns3/log.h"
+
+#include "ns3/spectrum-test.h"
+
+#include "ns3/lte-phy-tag.h"
+#include "ns3/lte-test-ue-phy.h"
+#include "ns3/lte-sinr-chunk-processor.h"
+
+#include "ns3/lte-test-pathloss-model.h"
+
+NS_LOG_COMPONENT_DEFINE ("LtePathlossModelTest");
+
+using namespace ns3;
+
+
+/**
+ * Test 1.1 SINR calculation in downlink
+ */
+
+/**
+ * TestSuite
+ */
+
+LtePathlossModelTestSuite::LtePathlossModelTestSuite ()
+  : TestSuite ("lte-pathloss-model", SYSTEM)
+{
+  // LogLevel logLevel = (LogLevel)(LOG_PREFIX_FUNC | LOG_PREFIX_TIME | LOG_LEVEL_ALL);
+
+  // LogComponentEnable ("LteTestUePhy", logLevel);
+  // LogComponentEnable ("LteDownlinkSinrTest", logLevel);
+
+  // NS_LOG_INFO ("Creating LteDownlinkSinrTestSuite");
+
+  /**
+   * Build Spectrum Model values for the TX signal
+   */
+  Ptr<SpectrumModel> sm;
+
+  Bands bands;
+  BandInfo bi;
+
+  bi.fl = 2.400e9;
+  bi.fc = 2.410e9;
+  bi.fh = 2.420e9;
+  bands.push_back (bi);
+
+  bi.fl = 2.420e9;
+  bi.fc = 2.431e9;
+  bi.fh = 2.442e9;
+  bands.push_back (bi);
+
+  sm = Create<SpectrumModel> (bands);
+
+  /**
+   * TX signal #1: Power Spectral Density (W/Hz) of the signal of interest = [-46 -48] dBm and BW = [20 22] MHz
+   */
+  Ptr<SpectrumValue> rxPsd1 = Create<SpectrumValue> (sm);
+  (*rxPsd1)[0] = 1.255943215755e-15;
+  (*rxPsd1)[1] = 7.204059965732e-16;
+
+  Ptr<SpectrumValue> theoreticalSinr1 = Create<SpectrumValue> (sm);
+  (*theoreticalSinr1)[0] = 3.72589167251055;
+  (*theoreticalSinr1)[1] = 3.72255684126076;
+
+  AddTestCase (new LtePathlossModelTestCase (rxPsd1, theoreticalSinr1, "sdBm = [-46 -48]"));
+
+  /**
+   * TX signal #2: Power Spectral Density (W/Hz) of the signal of interest = [-63 -61] dBm and BW = [20 22] MHz
+   */
+  Ptr<SpectrumValue> rxPsd2 = Create<SpectrumValue> (sm);
+  (*rxPsd2)[0] = 2.505936168136e-17;
+  (*rxPsd2)[1] = 3.610582885110e-17;
+
+  Ptr<SpectrumValue> theoreticalSinr2 = Create<SpectrumValue> (sm);
+  (*theoreticalSinr2)[0] = 0.0743413124381667;
+  (*theoreticalSinr2)[1] = 0.1865697965291756;
+
+  AddTestCase (new LtePathlossModelTestCase (rxPsd2, theoreticalSinr2, "sdBm = [-63 -61]"));
+
+}
+
+static LtePathlossModelTestSuite ltePathlossModelTestSuite;
+
+
+/**
+ * TestCase
+ */
+
+LtePathlossModelTestCase::LtePathlossModelTestCase (Ptr<SpectrumValue> sv, Ptr<SpectrumValue> sinr, std::string name)
+  : TestCase ("SINR calculation in downlink: " + name),
+    m_sv (sv),
+    m_sm (sv->GetSpectrumModel ()),
+    m_sinr (sinr)
+{
+  NS_LOG_INFO ("Creating LtePathlossModelTestCase");
+}
+
+LtePathlossModelTestCase::~LtePathlossModelTestCase ()
+{
+}
+
+void
+LtePathlossModelTestCase::DoRun (void)
+{
+  LogLevel logLevel = (LogLevel)(LOG_PREFIX_FUNC | LOG_PREFIX_TIME | LOG_LEVEL_ALL);
+
+  LogComponentEnable ("LteEnbRrc", logLevel);
+  LogComponentEnable ("LteUeRrc", logLevel);
+  LogComponentEnable ("LteEnbMac", logLevel);
+  LogComponentEnable ("LteUeMac", logLevel);
+  LogComponentEnable ("LteRlc", logLevel);
+  LogComponentEnable ("RrPacketScheduler", logLevel);
+
+  LogComponentEnable ("LtePhy", logLevel);
+  LogComponentEnable ("LteEnbPhy", logLevel);
+  LogComponentEnable ("LteUePhy", logLevel);
+
+  LogComponentEnable ("LteSpectrumPhy", logLevel);
+  LogComponentEnable ("LteInterference", logLevel);
+  LogComponentEnable ("LteSinrChunkProcessor", logLevel);
+
+  LogComponentEnable ("LtePropagationLossModel", logLevel);
+  LogComponentEnable ("LossModel", logLevel);
+  LogComponentEnable ("ShadowingLossModel", logLevel);
+  LogComponentEnable ("PenetrationLossModel", logLevel);
+  LogComponentEnable ("MultipathLossModel", logLevel);
+  LogComponentEnable ("PathLossModel", logLevel);
+
+  LogComponentEnable ("LteNetDevice", logLevel);
+  LogComponentEnable ("LteUeNetDevice", logLevel);
+  LogComponentEnable ("LteEnbNetDevice", logLevel);
+
+  /**
+   * Instantiate a single receiving LteSpectrumPhy
+   */
+  Ptr<LteSpectrumPhy> dlPhy = CreateObject<LteSpectrumPhy> ();
+  Ptr<LteSpectrumPhy> ulPhy = CreateObject<LteSpectrumPhy> ();
+  Ptr<LteTestUePhy> uePhy = CreateObject<LteTestUePhy> (dlPhy, ulPhy);
+
+  dlPhy->SetCellId (100);
+
+  Ptr<LteCqiSinrChunkProcessor> chunkProcessor = Create<LteCqiSinrChunkProcessor> (uePhy->GetObject<LtePhy> ());
+  dlPhy->AddSinrChunkProcessor (chunkProcessor);
+
+  /**
+   * Generate several calls to LteSpectrumPhy::StartRx corresponding to several signals.
+   * One will be the signal of interest, i.e., the PhyTag of the first Packet in the Packet burst
+   * will have the same CellId of the receiving PHY;
+   * the others will have a different CellId and hence will be the interfering signals
+   */
+
+  // Number of packet bursts (1 data + 4 interferences)
+  int numOfPbs = 5;
+
+  // Number of packets in the packet bursts
+  int numOfPkts = 10;
+
+  // Packet bursts
+  Ptr<PacketBurst> packetBursts[numOfPbs];
+
+  // Packets
+  Ptr<Packet> pkt[numOfPbs][numOfPkts];
+
+  // Phy tags
+  LtePhyTag pktTag[numOfPbs];
+
+  /**
+   * Build packet burst
+   */
+  for ( int pb = 0 ; pb < numOfPbs ; pb++ )
+    {
+      // Create packet burst
+      packetBursts[pb] = CreateObject<PacketBurst> ();
+
+      // Create packets and add them to the burst
+      for ( int i = 0 ; i < numOfPkts ; i++ )
+        {
+          pkt[pb][i] = Create<Packet> (1000);
+
+          if ( i == 0 )
+            {
+              // Create phy tag (different for each packet burst)
+              // and add to the first packet
+              pktTag[pb] = LtePhyTag (100 * (pb + 1));
+              pkt[pb][i]->AddPacketTag ( pktTag[pb] );
+            }
+
+          packetBursts[pb]->AddPacket ( pkt[pb][i] );
+        }
+    }
+
+
+  Ptr<SpectrumValue> noisePsd = Create<SpectrumValue> (m_sm);
+  Ptr<SpectrumValue> i1 = Create<SpectrumValue> (m_sm);
+  Ptr<SpectrumValue> i2 = Create<SpectrumValue> (m_sm);
+  Ptr<SpectrumValue> i3 = Create<SpectrumValue> (m_sm);
+  Ptr<SpectrumValue> i4 = Create<SpectrumValue> (m_sm);
+
+  (*noisePsd)[0] = 5.000000000000e-19;
+  (*noisePsd)[1] = 4.545454545455e-19;
+
+  (*i1)[0] = 5.000000000000e-18;
+  (*i2)[0] = 5.000000000000e-16;
+  (*i3)[0] = 1.581138830084e-16;
+  (*i4)[0] = 7.924465962306e-17;
+  (*i1)[1] = 1.437398936440e-18;
+  (*i2)[1] = 5.722388235428e-16;
+  (*i3)[1] = 7.204059965732e-17;
+  (*i4)[1] = 5.722388235428e-17;
+
+  Time ts  = Seconds (1);
+  Time ds  = Seconds (1);
+  Time ti1 = Seconds (0);
+  Time di1 = Seconds (3);
+  Time ti2 = Seconds (0.7);
+  Time di2 = Seconds (1);
+  Time ti3 = Seconds (1.2);
+  Time di3 = Seconds (1);
+  Time ti4 = Seconds (1.5);
+  Time di4 = Seconds (0.1);
+
+  dlPhy->SetNoisePowerSpectralDensity (noisePsd);
+
+  /**
+   * Schedule the reception of the data signal plus the interference signals
+   */
+
+  // eNB sends data to 2 UEs through 2 subcarriers
+  Simulator::Schedule (ts, &LteSpectrumPhy::StartRx, dlPhy, packetBursts[0], m_sv, dlPhy->GetSpectrumType (), ds);
+
+  Simulator::Schedule (ti1, &LteSpectrumPhy::StartRx, dlPhy, packetBursts[1], i1, dlPhy->GetSpectrumType (), di1);
+  Simulator::Schedule (ti2, &LteSpectrumPhy::StartRx, dlPhy, packetBursts[2], i2, dlPhy->GetSpectrumType (), di2);
+  Simulator::Schedule (ti3, &LteSpectrumPhy::StartRx, dlPhy, packetBursts[3], i3, dlPhy->GetSpectrumType (), di3);
+  Simulator::Schedule (ti4, &LteSpectrumPhy::StartRx, dlPhy, packetBursts[4], i4, dlPhy->GetSpectrumType (), di4);
+
+  Simulator::Stop (Seconds (5.0));
+  Simulator::Run ();
+  Simulator::Destroy ();
+
+  /**
+   * Check that the values passed to LteSinrChunkProcessor::EvaluateSinrChunk () correspond
+   * to known values which have been calculated offline (with octave) for the generated signals
+   */
+  SpectrumValue calculatedSinr = uePhy->GetSinr ();
+
+  NS_LOG_INFO ("Theoretical SINR: " << *m_sinr);
+  NS_LOG_INFO ("Calculated SINR: " << calculatedSinr);
+ 
+  NS_TEST_ASSERT_MSG_SPECTRUM_VALUE_EQ_TOL(calculatedSinr, *m_sinr, 0.0000001, "Wrong SINR !");
+}
--- a/src/lte/test/lte-test-pathloss-model.h
+++ b/src/lte/test/lte-test-pathloss-model.h
@ -0,0 +1,57 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ */
+
+#ifndef LTE_TEST_PATHLOSS_MODEL_H
+#define LTE_TEST_PATHLOSS_MODEL_H
+
+#include "ns3/spectrum-value.h"
+
+#include "ns3/test.h"
+
+
+using namespace ns3;
+
+
+/**
+ * Test 1.1 pathloss calculation
+ */
+class LtePathlossModelTestSuite : public TestSuite
+{
+public:
+  LtePathlossModelTestSuite ();
+};
+
+
+class LtePathlossModelTestCase : public TestCase
+{
+public:
+  LtePathlossModelTestCase (Ptr<SpectrumValue> sv, Ptr<SpectrumValue> sinr, std::string name);
+  virtual ~LtePathlossModelTestCase ();
+
+private:
+  virtual void DoRun (void);
+
+  Ptr<SpectrumValue> m_sv;
+  Ptr<const SpectrumModel> m_sm;
+  Ptr<SpectrumValue> m_sinr;
+};
+
+
+#endif /* LTE_TEST_PATHLOSS_MODEL_H */
--- a/src/lte/wscript
+++ b/src/lte/wscript
@ -61,6 +61,7 @@ def build(bld):
        'test/lte-test-pf-ff-mac-scheduler.cc',
        'test/lte-test-earfcn.cc',
        'test/lte-test-spectrum-value-helper.cc',
+        'test/lte-test-pathloss-model.cc',
        'test/epc-test-gtpu-v1.cc',
        ]
    
@ -120,6 +121,7 @@ def build(bld):
        'test/lte-test-rr-ff-mac-scheduler.h',
        'test/lte-test-pf-ff-mac-scheduler.h',
        'test/lte-test-pf-ff-mac-scheduler.h',
+        'test/lte-test-pathloss-model.h',
        'test/epc-test-gtpu-v1.h',
        ]