A Discrete-Event Network Simulator
API
ns3::ThreeGppV2vUrbanChannelConditionModel Class Reference

Computes the channel condition for the V2V Urban scenario. More...

#include "three-gpp-v2v-channel-condition-model.h"

+ Inheritance diagram for ns3::ThreeGppV2vUrbanChannelConditionModel:
+ Collaboration diagram for ns3::ThreeGppV2vUrbanChannelConditionModel:

Public Member Functions

 ThreeGppV2vUrbanChannelConditionModel ()
 Constructor for the ThreeGppV2vUrbanChannelConditionModel class. More...
 
 ~ThreeGppV2vUrbanChannelConditionModel () override
 Destructor for the ThreeGppV2vUrbanChannelConditionModel class. More...
 
- Public Member Functions inherited from ns3::ThreeGppChannelConditionModel
 ThreeGppChannelConditionModel ()
 Constructor for the ThreeGppRmaChannelConditionModel class. More...
 
 ~ThreeGppChannelConditionModel () override
 Destructor for the ThreeGppRmaChannelConditionModel class. More...
 
int64_t AssignStreams (int64_t stream) override
 If this model uses objects of type RandomVariableStream, set the stream numbers to the integers starting with the offset 'stream'. More...
 
Ptr< ChannelConditionGetChannelCondition (Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const override
 Retrieve the condition of the channel between a and b. More...
 
- Public Member Functions inherited from ns3::ChannelConditionModel
 ChannelConditionModel ()
 Constructor for the ChannelConditionModel class. More...
 
 ChannelConditionModel (const ChannelConditionModel &)=delete
 
 ~ChannelConditionModel () override
 Destructor for the ChannelConditionModel class. More...
 
ChannelConditionModeloperator= (const ChannelConditionModel &)=delete
 
- Public Member Functions inherited from ns3::Object
 Object ()
 Constructor. More...
 
 ~Object () override
 Destructor. More...
 
void AggregateObject (Ptr< Object > other)
 Aggregate two Objects together. More...
 
void Dispose ()
 Dispose of this Object. More...
 
AggregateIterator GetAggregateIterator () const
 Get an iterator to the Objects aggregated to this one. More...
 
TypeId GetInstanceTypeId () const override
 Get the most derived TypeId for this Object. More...
 
template<typename T >
Ptr< T > GetObject () const
 Get a pointer to the requested aggregated Object. More...
 
template<>
Ptr< ObjectGetObject () const
 Specialization of () for objects of type ns3::Object. More...
 
template<typename T >
Ptr< T > GetObject (TypeId tid) const
 Get a pointer to the requested aggregated Object by TypeId. More...
 
template<>
Ptr< ObjectGetObject (TypeId tid) const
 Specialization of (TypeId tid) for objects of type ns3::Object. More...
 
void Initialize ()
 Invoke DoInitialize on all Objects aggregated to this one. More...
 
bool IsInitialized () const
 Check if the object has been initialized. More...
 
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount ()
 Default constructor. More...
 
 SimpleRefCount (const SimpleRefCount &o[[maybe_unused]])
 Copy constructor. More...
 
uint32_t GetReferenceCount () const
 Get the reference count of the object. More...
 
SimpleRefCountoperator= (const SimpleRefCount &o[[maybe_unused]])
 Assignment operator. More...
 
void Ref () const
 Increment the reference count. More...
 
void Unref () const
 Decrement the reference count. More...
 
- Public Member Functions inherited from ns3::ObjectBase
virtual ~ObjectBase ()
 Virtual destructor. More...
 
void GetAttribute (std::string name, AttributeValue &value) const
 Get the value of an attribute, raising fatal errors if unsuccessful. More...
 
bool GetAttributeFailSafe (std::string name, AttributeValue &value) const
 Get the value of an attribute without raising errors. More...
 
void SetAttribute (std::string name, const AttributeValue &value)
 Set a single attribute, raising fatal errors if unsuccessful. More...
 
bool SetAttributeFailSafe (std::string name, const AttributeValue &value)
 Set a single attribute without raising errors. More...
 
bool TraceConnect (std::string name, std::string context, const CallbackBase &cb)
 Connect a TraceSource to a Callback with a context. More...
 
bool TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
 Connect a TraceSource to a Callback without a context. More...
 
bool TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected with a context. More...
 
bool TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
 Disconnect from a TraceSource a Callback previously connected without a context. More...
 

Static Public Member Functions

static TypeId GetTypeId ()
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::ThreeGppChannelConditionModel
static TypeId GetTypeId ()
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::ChannelConditionModel
static TypeId GetTypeId ()
 Get the type ID. More...
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId ()
 Register this type. More...
 
- Static Public Member Functions inherited from ns3::ObjectBase
static TypeId GetTypeId ()
 Get the type ID. More...
 

Private Member Functions

double ComputePlos (Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const override
 Compute the LOS probability as specified in Table Table 6.2-1 of 3GPP TR 37.885 for the V2V Urban scenario. More...
 
double ComputePnlos (Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const override
 Compute the NLOS probability. More...
 

Private Attributes

Ptr< BuildingsChannelConditionModelm_buildingsCcm
 used to determine the obstructions due to buildings More...
 

Additional Inherited Members

- Protected Types inherited from ns3::ThreeGppChannelConditionModel
enum  VehicleDensity { LOW , MEDIUM , HIGH , INVALID }
 Determine the density of vehicles in a V2V scenario. More...
 
- Protected Member Functions inherited from ns3::ThreeGppChannelConditionModel
void DoDispose () override
 Destructor implementation. More...
 
- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 Copy an Object. More...
 
virtual void DoInitialize ()
 Initialize() implementation. More...
 
virtual void NotifyNewAggregate ()
 Notify all Objects aggregated to this one of a new Object being aggregated. More...
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 Complete construction of ObjectBase; invoked by derived classes. More...
 
virtual void NotifyConstructionCompleted ()
 Notifier called once the ObjectBase is fully constructed. More...
 
- Static Protected Member Functions inherited from ns3::ThreeGppChannelConditionModel
static double Calculate2dDistance (const Vector &a, const Vector &b)
 Computes the 2D distance between two 3D vectors. More...
 
- Protected Attributes inherited from ns3::ThreeGppChannelConditionModel
Ptr< UniformRandomVariablem_uniformVar
 uniform random variable More...
 

Detailed Description

Computes the channel condition for the V2V Urban scenario.

Computes the channel condition following the specifications for the V2V Urban scenario reported in Table 6.2-1 of 3GPP TR 37.885.

3GPP TR 37.885 defines 3 different channel states for vehicular environments: LOS, NLOS and NLOSv, the latter representing the case in which the LOS path is blocked by other vehicles in the scenario. The document defines a probabilistic model to determine if the channel state is LOS or NLOSv, while the NLOS state is determined in a deterministic way based on the buildings deployed in the scenario. For this reason, this class makes use of an instance of BuildingsChannelConditionModel to determine if the LOS is obstructed by buildings or not.

Definition at line 51 of file three-gpp-v2v-channel-condition-model.h.

Constructor & Destructor Documentation

◆ ThreeGppV2vUrbanChannelConditionModel()

ns3::ThreeGppV2vUrbanChannelConditionModel::ThreeGppV2vUrbanChannelConditionModel ( )

Constructor for the ThreeGppV2vUrbanChannelConditionModel class.

Definition at line 44 of file three-gpp-v2v-channel-condition-model.cc.

References m_buildingsCcm.

◆ ~ThreeGppV2vUrbanChannelConditionModel()

ns3::ThreeGppV2vUrbanChannelConditionModel::~ThreeGppV2vUrbanChannelConditionModel ( )
override

Destructor for the ThreeGppV2vUrbanChannelConditionModel class.

Definition at line 50 of file three-gpp-v2v-channel-condition-model.cc.

Member Function Documentation

◆ ComputePlos()

double ns3::ThreeGppV2vUrbanChannelConditionModel::ComputePlos ( Ptr< const MobilityModel a,
Ptr< const MobilityModel b 
) const
overrideprivatevirtual

Compute the LOS probability as specified in Table Table 6.2-1 of 3GPP TR 37.885 for the V2V Urban scenario.

Parameters
atx mobility model
brx mobility model
Returns
the LOS probability

Implements ns3::ThreeGppChannelConditionModel.

Definition at line 55 of file three-gpp-v2v-channel-condition-model.cc.

References ns3::ThreeGppChannelConditionModel::Calculate2dDistance(), m_buildingsCcm, min, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

+ Here is the call graph for this function:

◆ ComputePnlos()

double ns3::ThreeGppV2vUrbanChannelConditionModel::ComputePnlos ( Ptr< const MobilityModel a,
Ptr< const MobilityModel b 
) const
overrideprivatevirtual

Compute the NLOS probability.

It determines the presence of obstructions between the tx and the rx based on the buildings deployed in the scenario. It returns 1 if the LOS path is obstructed, 0 otherwise.

Parameters
atx mobility model
brx mobility model
Returns
the NLOS probability

Reimplemented from ns3::ThreeGppChannelConditionModel.

Definition at line 78 of file three-gpp-v2v-channel-condition-model.cc.

References m_buildingsCcm, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

◆ GetTypeId()

TypeId ns3::ThreeGppV2vUrbanChannelConditionModel::GetTypeId ( void  )
static

Get the type ID.

Get the type ID.

Returns
the object TypeId

Definition at line 35 of file three-gpp-v2v-channel-condition-model.cc.

References ns3::TypeId::SetParent().

+ Here is the call graph for this function:

Member Data Documentation

◆ m_buildingsCcm

Ptr<BuildingsChannelConditionModel> ns3::ThreeGppV2vUrbanChannelConditionModel::m_buildingsCcm
private

used to determine the obstructions due to buildings

Definition at line 94 of file three-gpp-v2v-channel-condition-model.h.

Referenced by ThreeGppV2vUrbanChannelConditionModel(), ComputePlos(), and ComputePnlos().


The documentation for this class was generated from the following files: