mirror of
https://gitlab.ibr.cs.tu-bs.de/tschuber/ns-3-leo.git
synced 2025-06-08 10:03:58 +02:00
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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#include <math.h>
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#include "ns3/log.h"
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#include "ns3/mobility-model.h"
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#include "ns3/double.h"
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#include "leo-propagation-loss-model.h"
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namespace ns3 {
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NS_LOG_COMPONENT_DEFINE ("LeoPropagationLossModel");
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NS_OBJECT_ENSURE_REGISTERED (LeoPropagationLossModel);
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TypeId
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LeoPropagationLossModel::GetTypeId (void)
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{
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static TypeId tid = TypeId ("ns3::LeoPropagationLossModel")
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.SetParent<PropagationLossModel> ()
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.SetGroupName ("Leo")
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.AddConstructor<LeoPropagationLossModel> ()
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.AddAttribute ("MaxDistance",
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"Cut-off distance for signal propagation",
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DoubleValue (1000000.0),
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MakeDoubleAccessor (&LeoPropagationLossModel::m_cutoffDistance),
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MakeDoubleChecker<double> ())
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.AddAttribute ("MaxAngle",
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"Cut-off angle for signal propagation",
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DoubleValue (20.0),
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MakeDoubleAccessor (&LeoPropagationLossModel::m_cutoffAngle),
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MakeDoubleChecker<double> ())
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;
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return tid;
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}
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LeoPropagationLossModel::LeoPropagationLossModel ()
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{
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}
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LeoPropagationLossModel::~LeoPropagationLossModel ()
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{
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}
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double
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LeoPropagationLossModel::GetAngle (Ptr<MobilityModel> a, Ptr<MobilityModel> b)
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{
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Vector3D pa = a->GetPosition () - b->GetPosition ();
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Vector3D pb = b->GetPosition ();
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pb = Vector3D (-pb.x, -pb.y, -pb.z);
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double prod = abs ((pa.x * pb.x) + (pa.y * pb.y) + (pa.z * pb.z));
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double norm = pb.GetLength () * pa.GetLength ();
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return acos (prod / norm);
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}
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double
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LeoPropagationLossModel::DoCalcRxPower (double txPowerDbm,
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Ptr<MobilityModel> a,
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Ptr<MobilityModel> b) const
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{
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// TODO create attributes for max distance and angle
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if (a->GetDistanceFrom (b) > m_cutoffDistance && GetAngle (a, b) > m_cutoffAngle)
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{
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return 0;
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}
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double rxc = 0;//-m_variable->GetValue ();
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//NS_LOG_DEBUG ("attenuation coefficient="<<rxc<<"Db");
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return txPowerDbm + rxc;
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}
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int64_t
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LeoPropagationLossModel::DoAssignStreams (int64_t stream)
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{
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return 0;
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}
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};
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