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propagation: Fix log normal params and blocker type determination

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This commit is contained in:
Tommaso Zugno
2021-01-29 15:48:19 +01:00
committed by Tom Henderson
parent a867437a58
commit 4b60c4d6f0
1 changed files with 5 additions and 5 deletions
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10
src/propagation/model/three-gpp-v2v-propagation-loss-model.cc
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@@ -99,7 +99,7 @@ ThreeGppV2vUrbanPropagationLossModel::GetAdditionalNlosvLoss (double distance3D,
double blockerHeight = 0;
double mu_a = 0;
double sigma_a = 0;
double randomValue = m_uniformVar->GetValue () * 3.0;
double randomValue = m_uniformVar->GetValue ();
if (randomValue < m_percType3Vehicles)
{
// vehicles of type 3 have height 3 meters
@@ -122,8 +122,8 @@ ThreeGppV2vUrbanPropagationLossModel::GetAdditionalNlosvLoss (double distance3D,
// Case 2: Maximum antenna height value of TX and RX < Blocker height
mu_a = 9.0 + std::max (0.0, 15 * log10 (distance3D) - 41.0);
sigma_a = 4.5;
m_logNorVar->SetAttribute ("Mu", DoubleValue (log10 (pow (mu_a, 2) / sqrt (pow (sigma_a, 2) + pow (mu_a, 2)))));
m_logNorVar->SetAttribute ("Sigma", DoubleValue (sqrt (log10 (pow (sigma_a, 2) / pow (mu_a, 2) + 1))));
m_logNorVar->SetAttribute ("Mu", DoubleValue (log (pow (mu_a, 2) / sqrt (pow (sigma_a, 2) + pow (mu_a, 2)))));
m_logNorVar->SetAttribute ("Sigma", DoubleValue (sqrt (log (pow (sigma_a, 2) / pow (mu_a, 2) + 1))));
additionalLoss = std::max (0.0, m_logNorVar->GetValue ());
}
else
@@ -132,8 +132,8 @@ ThreeGppV2vUrbanPropagationLossModel::GetAdditionalNlosvLoss (double distance3D,
mu_a = 5.0 + std::max (0.0, 15 * log10 (distance3D) - 41.0);
sigma_a = 4.0;
m_logNorVar->SetAttribute ("Mu", DoubleValue (log10 (pow (mu_a,2) / sqrt (pow (sigma_a, 2) + pow (mu_a, 2)))));
m_logNorVar->SetAttribute ("Sigma", DoubleValue (sqrt (log10 (pow (sigma_a,2) / pow (mu_a, 2) + 1))));
m_logNorVar->SetAttribute ("Mu", DoubleValue (log (pow (mu_a,2) / sqrt (pow (sigma_a, 2) + pow (mu_a, 2)))));
m_logNorVar->SetAttribute ("Sigma", DoubleValue (sqrt (log (pow (sigma_a,2) / pow (mu_a, 2) + 1))));
additionalLoss = std::max (0.0, m_logNorVar->GetValue ());
}