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interference test finalized and passing

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This commit is contained in:
Nicola Baldo
2011-06-04 02:43:35 +02:00
parent b5c964d631
commit a3c3fab40a
2 changed files with 59 additions and 48 deletions
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34
src/lte/test/lte-test-interference.cc
View File

@@ -68,7 +68,18 @@ LteInterferenceTestSuite::LteInterferenceTestSuite ()
{
NS_LOG_INFO ("Creating LteInterferenceTestSuite");
AddTestCase (new LteInterferenceTestCase ("d1=3000, d2=6000", 3000.000000, 6000.000000, 3.844681, 1.714583, 0.761558, 0.389662, 4, 2));
AddTestCase (new LteInterferenceTestCase ("d1=3000, d2=6000", 3000.000000, 6000.000000, 3.844681, 1.714583, 0.761558, 0.389662, 6, 4));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=10", 50.000000, 10.000000, 0.040000, 0.040000, 0.010399, 0.010399, 0, 0));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=20", 50.000000, 20.000000, 0.160000, 0.159998, 0.041154, 0.041153, 0, 0));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=50", 50.000000, 50.000000, 0.999997, 0.999907, 0.239828, 0.239808, 2, 2));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=100", 50.000000, 100.000000, 3.999955, 3.998520, 0.785259, 0.785042, 6, 6));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=200", 50.000000, 200.000000, 15.999282, 15.976339, 1.961072, 1.959533, 14, 14));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=500", 50.000000, 500.000000, 99.971953, 99.082845, 4.254003, 4.241793, 22, 22));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=1000", 50.000000, 1000.000000, 399.551632, 385.718468, 6.194952, 6.144825, 28, 28));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=10000", 50.000000, 10000.000000, 35964.181431, 8505.970614, 12.667381, 10.588084, 28, 28));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=100000", 50.000000, 100000.000000, 327284.773828, 10774.181090, 15.853097, 10.928917, 28, 28));
AddTestCase (new LteInterferenceTestCase ("d1=50, d2=1000000", 50.000000, 1000000.000000, 356132.574152, 10802.988445, 15.974963, 10.932767, 28, 28));
}
static LteInterferenceTestSuite lteLinkAdaptationWithInterferenceTestSuite;
@@ -117,12 +128,19 @@ LteInterferenceTestCase::DoRun (void)
ueNodes2.Create (1);
NodeContainer allNodes = NodeContainer ( enbNodes, ueNodes1, ueNodes2);
// positions
// the topology is the following:
// d2
// UE1-----------eNB2
// | |
// d1| |d1
// | d2 |
// eNB1----------UE2
//
Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (0.0, 0.0, 0.0)); // eNB 1
positionAlloc->Add (Vector (m_d2, m_d1, 0.0)); // eNB 2
positionAlloc->Add (Vector (0.0, m_d1, 0.0)); // UE 1
positionAlloc->Add (Vector (m_d2, 0.0, 0.0)); // UE 2
positionAlloc->Add (Vector (0.0, 0.0, 0.0)); // eNB1
positionAlloc->Add (Vector (m_d2, m_d1, 0.0)); // eNB2
positionAlloc->Add (Vector (0.0, m_d1, 0.0)); // UE1
positionAlloc->Add (Vector (m_d2, 0.0, 0.0)); // UE2
MobilityHelper mobility;
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility.SetPositionAllocator (positionAlloc);
@@ -170,10 +188,10 @@ LteInterferenceTestCase::DoRun (void)
Simulator::Run ();
double dlSinrDb = 10.0 * log10 (testDlSinr->GetSinr ()[0]);
NS_TEST_ASSERT_MSG_EQ_TOL (dlSinrDb, m_dlSinrDb, 0.0000001, "Wrong SINR in DL!");
NS_TEST_ASSERT_MSG_EQ_TOL (dlSinrDb, m_dlSinrDb, 0.01, "Wrong SINR in DL!");
double ulSinrDb = 10.0 * log10 (testUlSinr->GetSinr ()[0]);
NS_TEST_ASSERT_MSG_EQ_TOL (ulSinrDb, m_ulSinrDb, 0.0000001, "Wrong SINR in UL!");
NS_TEST_ASSERT_MSG_EQ_TOL (ulSinrDb, m_ulSinrDb, 0.01, "Wrong SINR in UL!");
Simulator::Destroy ();
}

73
src/lte/test/reference/lte_link_budget_interference.m
View File

@@ -35,52 +35,45 @@ gamma = -log (5*ber)./1.5;
%% | d2 |
%% eNB1----------UE2
%%
d1 = 3000;
d2 = 6000;
%% propagation gains (linear)
%% g21dl
%% UE1<----------eNB2
%% ^ |
%%g11dl1| |g11ul
%% | v
%% eNB1<---------UE2
%% g21ul
d1 = 50;
%% for d2 = [10 100 1000 10000 100000 1000000]
for d2 = [20 50 200 500]
g11dl = gain_freespace (d1, fdl);
g11ul = gain_freespace (d1, ful);
g21dl = gain_freespace (d2, fdl);
g21ul = gain_freespace (d2, ful);
%% propagation gains (linear)
%% g21dl
%% UE1<----------eNB2
%% ^ |
%%g11dl1| |g11ul
%% | v
%% eNB1<---------UE2
%% g21ul
%% SINR (linear)
dlsinr = dlp*g11dl / (dlp*g21dl + dln);
ulsinr = ulp*g11ul / (ulp*g21ul + uln);
g11dl = gain_freespace (d1, fdl);
g11ul = gain_freespace (d1, ful);
g21dl = gain_freespace (d2, fdl);
g21ul = gain_freespace (d2, ful);
%% SINR (dB)
dlsinrdB = 10.*log10(dlsinr)
ulsinrdB = 10.*log10(ulsinr)
%% SINR (linear)
dlsinr = dlp*g11dl / (dlp*g21dl + dln);
ulsinr = ulp*g11ul / (ulp*g21ul + uln);
%% Spectal Efficiency
dlse = log2(1 + dlsinr./gamma);
ulse = log2(1 + ulsinr./gamma);
%% SINR (dB)
dlsinrdB = 10.*log10(dlsinr);
ulsinrdB = 10.*log10(ulsinr);
%% to get the MCS, you need to do a manual lookup into 3GPP R1-081483
%% starting from the spectral efficiency value.
%% See the Testing section in the LTE module documentation for more info
%% on how this is done. You might as well look into lte_amc.m
%% Spectal Efficiency
dlse = log2(1 + dlsinr./gamma);
ulse = log2(1 + ulsinr./gamma);
%% to get the MCS, you need to do a manual lookup into 3GPP R1-081483
%% starting from the spectral efficiency value.
%% See the Testing section in the LTE module documentation for more info
%% on how this is done. You might as well look into lte_amc.m
printf("AddTestCase (new LteInterferenceTestCase (\"d1=%d, d2=%d\", % f, %f, % f, %f, % f, %f, , ));\n", \
d1, d2, d1, d2, dlsinr, ulsinr, dlse, ulse)
printf("AddTestCase (new LteLinkAdaptationWithInterferenceTestCase (\"d1=%d, d2=%d\", % f, %f, % f, %f, % f, %f, , ));\n", \
d1, d2, d1, d2, dlsinr, ulsinr, dlse, ulse)
# semilogx (d, snr, ";friis;");
# xlabel ("distance (m)");
# ylabel ("SNR (dB)");
# title ("LTE link budget");
# grid on;
# print ("lte_link_budget.png", "-dpng");
endfor