propagation-loss-model.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2005,2006,2007 INRIA
 *
 * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 * Contributions: Timo Bingmann <timo.bingmann@student.kit.edu>
 * Contributions: Gary Pei <guangyu.pei@boeing.com> for fixed RSS
 * Contributions: Tom Hewer <tomhewer@mac.com> for two ray ground model
 *                Pavel Boyko <boyko@iitp.ru> for matrix
 */
 
#ifndef PROPAGATION_LOSS_MODEL_H
#define PROPAGATION_LOSS_MODEL_H
 
#include "ns3/object.h"
#include "ns3/random-variable-stream.h"
#include <map>
 
namespace ns3 {
 
class MobilityModel;
 
class PropagationLossModel : public Object
{
public:
  static TypeId GetTypeId (void);
 
  PropagationLossModel ();
  virtual ~PropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  PropagationLossModel (const PropagationLossModel &) = delete;
  PropagationLossModel & operator = (const PropagationLossModel &) = delete;
 
  void SetNext (Ptr<PropagationLossModel> next);
 
  Ptr<PropagationLossModel> GetNext ();
 
  double CalcRxPower (double txPowerDbm,
                      Ptr<MobilityModel> a,
                      Ptr<MobilityModel> b) const;
 
  int64_t AssignStreams (int64_t stream);
 
protected:
  virtual int64_t DoAssignStreams (int64_t stream) = 0;
 
private:
  virtual double DoCalcRxPower (double txPowerDbm,
                                Ptr<MobilityModel> a,
                                Ptr<MobilityModel> b) const = 0;
 
  Ptr<PropagationLossModel> m_next; 
};
 
class RandomPropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
 
  RandomPropagationLossModel ();
  virtual ~RandomPropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  RandomPropagationLossModel (const RandomPropagationLossModel &) = delete;
  RandomPropagationLossModel & operator = (const RandomPropagationLossModel &) = delete;
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
  int64_t DoAssignStreams (int64_t stream) override;
 
  Ptr<RandomVariableStream> m_variable; 
};
 
class FriisPropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
  FriisPropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  FriisPropagationLossModel (const FriisPropagationLossModel &) = delete;
  FriisPropagationLossModel & operator = (const FriisPropagationLossModel &) = delete;
 
  void SetFrequency (double frequency);
  void SetSystemLoss (double systemLoss);
 
  void SetMinLoss (double minLoss);
 
  double GetMinLoss (void) const;
 
  double GetFrequency (void) const;
  double GetSystemLoss (void) const;
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
  int64_t DoAssignStreams (int64_t stream) override;
 
  double DbmToW (double dbm) const;
 
  double DbmFromW (double w) const;
 
  double m_lambda;        
  double m_frequency;     
  double m_systemLoss;    
  double m_minLoss;       
};
 
class TwoRayGroundPropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
  TwoRayGroundPropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  TwoRayGroundPropagationLossModel (const TwoRayGroundPropagationLossModel &) = delete;
  TwoRayGroundPropagationLossModel & operator = (const TwoRayGroundPropagationLossModel &) = delete;
 
  void SetFrequency (double frequency);
 
  void SetSystemLoss (double systemLoss);
  void SetMinDistance (double minDistance);
  double GetMinDistance (void) const;
 
  double GetFrequency (void) const;
 
  double GetSystemLoss (void) const;
  void SetHeightAboveZ (double heightAboveZ);
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
  int64_t DoAssignStreams (int64_t stream) override;
 
  double DbmToW (double dbm) const;
 
  double DbmFromW (double w) const;
 
  double m_lambda;        
  double m_frequency;     
  double m_systemLoss;    
  double m_minDistance;   
  double m_heightAboveZ;  
};
 
class LogDistancePropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
  LogDistancePropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  LogDistancePropagationLossModel (const LogDistancePropagationLossModel &) = delete;
  LogDistancePropagationLossModel & operator = (const LogDistancePropagationLossModel &) = delete;
 
  void SetPathLossExponent (double n);
  double GetPathLossExponent (void) const;
 
  void SetReference (double referenceDistance, double referenceLoss);
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  static Ptr<PropagationLossModel> CreateDefaultReference (void);
 
  double m_exponent; 
  double m_referenceDistance; 
  double m_referenceLoss; 
};
 
class ThreeLogDistancePropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
  ThreeLogDistancePropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  ThreeLogDistancePropagationLossModel (const ThreeLogDistancePropagationLossModel &) = delete;
  ThreeLogDistancePropagationLossModel & operator = (const ThreeLogDistancePropagationLossModel &) = delete;
 
  // Parameters are all accessible via attributes.
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  double m_distance0; 
  double m_distance1; 
  double m_distance2; 
 
  double m_exponent0; 
  double m_exponent1; 
  double m_exponent2; 
 
  double m_referenceLoss; 
};
 
class NakagamiPropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
 
  NakagamiPropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  NakagamiPropagationLossModel (const NakagamiPropagationLossModel &) = delete;
  NakagamiPropagationLossModel & operator = (const NakagamiPropagationLossModel &) = delete;
 
  // Parameters are all accessible via attributes.
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  double m_distance1; 
  double m_distance2; 
 
  double m_m0;        
  double m_m1;        
  double m_m2;        
 
  Ptr<ErlangRandomVariable>  m_erlangRandomVariable; 
  Ptr<GammaRandomVariable> m_gammaRandomVariable;    
};
 
class FixedRssLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
 
  FixedRssLossModel ();
  virtual ~FixedRssLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  FixedRssLossModel (const FixedRssLossModel &) = delete;
  FixedRssLossModel & operator = (const FixedRssLossModel &) = delete;
 
  void SetRss (double rss);
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  double m_rss; 
};
 
class MatrixPropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
 
  MatrixPropagationLossModel ();
  virtual ~MatrixPropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  MatrixPropagationLossModel (const MatrixPropagationLossModel &) = delete;
  MatrixPropagationLossModel & operator = (const MatrixPropagationLossModel &) = delete;
 
  void SetLoss (Ptr<MobilityModel> a, Ptr<MobilityModel> b, double loss, bool symmetric = true);
 
  void SetDefaultLoss (double defaultLoss);
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  double m_default; 
 
  typedef std::pair< Ptr<MobilityModel>, Ptr<MobilityModel> > MobilityPair; 
 
  std::map<MobilityPair, double> m_loss; 
};
 
class RangePropagationLossModel : public PropagationLossModel
{
public:
  static TypeId GetTypeId (void);
  RangePropagationLossModel ();
 
  // Delete copy constructor and assignment operator to avoid misuse
  RangePropagationLossModel (const RangePropagationLossModel &) = delete;
  RangePropagationLossModel & operator = (const RangePropagationLossModel &) = delete;
 
private:
  double DoCalcRxPower (double txPowerDbm,
                        Ptr<MobilityModel> a,
                        Ptr<MobilityModel> b) const override;
 
  int64_t DoAssignStreams (int64_t stream) override;
 
  double m_range; 
};
 
} // namespace ns3
 
#endif /* PROPAGATION_LOSS_MODEL_H */