a log distance propagation model. More...
#include "propagation-loss-model.h"
Public Member Functions | |
LogDistancePropagationLossModel () | |
LogDistancePropagationLossModel (const LogDistancePropagationLossModel &)=delete | |
double | GetPathLossExponent () const |
LogDistancePropagationLossModel & | operator= (const LogDistancePropagationLossModel &)=delete |
void | SetPathLossExponent (double n) |
void | SetReference (double referenceDistance, double referenceLoss) |
Set the reference path loss at a given distance. | |
Public Member Functions inherited from ns3::PropagationLossModel | |
PropagationLossModel () | |
PropagationLossModel (const PropagationLossModel &)=delete | |
~PropagationLossModel () override | |
int64_t | AssignStreams (int64_t stream) |
If this loss model uses objects of type RandomVariableStream, set the stream numbers to the integers starting with the offset 'stream'. | |
double | CalcRxPower (double txPowerDbm, Ptr< MobilityModel > a, Ptr< MobilityModel > b) const |
Returns the Rx Power taking into account all the PropagationLossModel(s) chained to the current one. | |
Ptr< PropagationLossModel > | GetNext () |
Gets the next PropagationLossModel in the chain of loss models that act on the signal. | |
PropagationLossModel & | operator= (const PropagationLossModel &)=delete |
void | SetNext (Ptr< PropagationLossModel > next) |
Enables a chain of loss models to act on the signal. | |
Public Member Functions inherited from ns3::Object | |
Object () | |
Constructor. | |
~Object () override | |
Destructor. | |
void | AggregateObject (Ptr< Object > other) |
Aggregate two Objects together. | |
void | Dispose () |
Dispose of this Object. | |
AggregateIterator | GetAggregateIterator () const |
Get an iterator to the Objects aggregated to this one. | |
TypeId | GetInstanceTypeId () const override |
Get the most derived TypeId for this Object. | |
template<typename T > | |
Ptr< T > | GetObject () const |
Get a pointer to the requested aggregated Object. | |
template<> | |
Ptr< Object > | GetObject () const |
Specialization of () for objects of type ns3::Object. | |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
Get a pointer to the requested aggregated Object by TypeId. | |
template<> | |
Ptr< Object > | GetObject (TypeId tid) const |
Specialization of (TypeId tid) for objects of type ns3::Object. | |
void | Initialize () |
Invoke DoInitialize on all Objects aggregated to this one. | |
bool | IsInitialized () const |
Check if the object has been initialized. | |
void | UnidirectionalAggregateObject (Ptr< Object > other) |
Aggregate an Object to another Object. | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Default constructor. | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. | |
uint32_t | GetReferenceCount () const |
Get the reference count of the object. | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment operator. | |
void | Ref () const |
Increment the reference count. | |
void | Unref () const |
Decrement the reference count. | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. | |
void | GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const |
Get the value of an attribute, raising fatal errors if unsuccessful. | |
bool | GetAttributeFailSafe (std::string name, AttributeValue &value) const |
Get the value of an attribute without raising errors. | |
void | SetAttribute (std::string name, const AttributeValue &value) |
Set a single attribute, raising fatal errors if unsuccessful. | |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
Set a single attribute without raising errors. | |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
Connect a TraceSource to a Callback with a context. | |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
Connect a TraceSource to a Callback without a context. | |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected with a context. | |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected without a context. | |
Static Public Member Functions | |
static TypeId | GetTypeId () |
Get the type ID. | |
Static Public Member Functions inherited from ns3::PropagationLossModel | |
static TypeId | GetTypeId () |
Get the type ID. | |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId () |
Register this type. | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId () |
Get the type ID. | |
Private Member Functions | |
int64_t | DoAssignStreams (int64_t stream) override |
Assign a fixed random variable stream number to the random variables used by this model. | |
double | DoCalcRxPower (double txPowerDbm, Ptr< MobilityModel > a, Ptr< MobilityModel > b) const override |
PropagationLossModel. | |
Static Private Member Functions | |
static Ptr< PropagationLossModel > | CreateDefaultReference () |
Creates a default reference loss model. | |
Private Attributes | |
double | m_exponent |
model exponent | |
double | m_referenceDistance |
reference distance | |
double | m_referenceLoss |
reference loss | |
Additional Inherited Members | |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
Copy an Object. | |
virtual void | DoDispose () |
Destructor implementation. | |
virtual void | DoInitialize () |
Initialize() implementation. | |
virtual void | NotifyNewAggregate () |
Notify all Objects aggregated to this one of a new Object being aggregated. | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
Complete construction of ObjectBase; invoked by derived classes. | |
virtual void | NotifyConstructionCompleted () |
Notifier called once the ObjectBase is fully constructed. | |
Related Symbols inherited from ns3::ObjectBase | |
static TypeId | GetObjectIid () |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. | |
a log distance propagation model.
This model calculates the reception power with a so-called log-distance propagation model:
where:
When the path loss is requested at a distance smaller than the reference distance, the tx power is returned.
Definition at line 452 of file propagation-loss-model.h.
ns3::LogDistancePropagationLossModel::LogDistancePropagationLossModel | ( | ) |
Definition at line 495 of file propagation-loss-model.cc.
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delete |
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staticprivate |
Creates a default reference loss model.
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overrideprivatevirtual |
Assign a fixed random variable stream number to the random variables used by this model.
Subclasses must implement this; those not using random variables can return zero.
stream | first stream index to use |
Implements ns3::PropagationLossModel.
Definition at line 553 of file propagation-loss-model.cc.
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overrideprivatevirtual |
txPowerDbm | current transmission power (in dBm) |
a | the mobility model of the source |
b | the mobility model of the destination |
The formula is: rx = 10 * log (Pr0(tx)) - n * 10 * log (d/d0)
Pr0: rx power at reference distance d0 (W) d0: reference distance: 1.0 (m) d: distance (m) tx: tx power (dB) rx: dB
Which, in our case is:
rx = rx0(tx) - 10 * n * log (d/d0)
Implements ns3::PropagationLossModel.
Definition at line 519 of file propagation-loss-model.cc.
References m_exponent, m_referenceDistance, m_referenceLoss, and NS_LOG_DEBUG.
double ns3::LogDistancePropagationLossModel::GetPathLossExponent | ( | ) | const |
Definition at line 513 of file propagation-loss-model.cc.
References m_exponent.
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static |
Get the type ID.
Definition at line 469 of file propagation-loss-model.cc.
References m_exponent, m_referenceDistance, m_referenceLoss, ns3::MakeDoubleAccessor(), ns3::MakeDoubleChecker(), and ns3::TypeId::SetParent().
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delete |
void ns3::LogDistancePropagationLossModel::SetPathLossExponent | ( | double | n | ) |
n | the path loss exponent. Set the path loss exponent. |
Definition at line 500 of file propagation-loss-model.cc.
References m_exponent.
void ns3::LogDistancePropagationLossModel::SetReference | ( | double | referenceDistance, |
double | referenceLoss ) |
Set the reference path loss at a given distance.
referenceDistance | reference distance |
referenceLoss | reference path loss |
Definition at line 506 of file propagation-loss-model.cc.
References m_referenceDistance, and m_referenceLoss.
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private |
model exponent
Definition at line 496 of file propagation-loss-model.h.
Referenced by DoCalcRxPower(), GetPathLossExponent(), GetTypeId(), and SetPathLossExponent().
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private |
reference distance
Definition at line 497 of file propagation-loss-model.h.
Referenced by DoCalcRxPower(), GetTypeId(), and SetReference().
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private |
reference loss
Definition at line 498 of file propagation-loss-model.h.
Referenced by DoCalcRxPower(), GetTypeId(), and SetReference().