WirelessLinkExtension Class

An extension for a link which models wireless communication by propagating a set of signals from a transmitting antenna to a receiving antenna.

Inheritance Hierarchy

SystemObject
  AGI.Foundation.InfrastructureDefinitionalObject
    AGI.Foundation.InfrastructureObjectExtension
      AGI.Foundation.CommunicationsWirelessLinkExtension

Namespace: AGI.Foundation.Communications
Assembly: AGI.Foundation.Communications (in AGI.Foundation.Communications.dll) Version: 24.1.418.0 (24.1.418.0)

Syntax

C++

Copy

public class WirelessLinkExtension : ObjectExtension, 
	IAvailableSignalPropagationModelsService, ITransmittedSignalService, IPropagatedSignalService

Public Class WirelessLinkExtension
	Inherits ObjectExtension
	Implements IAvailableSignalPropagationModelsService, ITransmittedSignalService, IPropagatedSignalService

public ref class WirelessLinkExtension : public ObjectExtension, 
	IAvailableSignalPropagationModelsService, ITransmittedSignalService, IPropagatedSignalService

type WirelessLinkExtension =  
    class
        inherit ObjectExtension
        interface IAvailableSignalPropagationModelsService
        interface ITransmittedSignalService
        interface IPropagatedSignalService
    end

The WirelessLinkExtension type exposes the following members.

Constructors

	Name	Description
	WirelessLinkExtension	Initializes a new instance.
	WirelessLinkExtension(IEnumerableSignalPropagationModel)	Initialize a new instance based on the given set of propagation models.
	WirelessLinkExtension(WirelessLinkExtension, CopyContext)	Initializes a new instance as a copy of an existing instance.

Top

Properties

	Name	Description
	IsFrozen	Gets a value indicating whether this object is frozen. A frozen object cannot be modified and an ObjectFrozenException will be thrown if an attempt is made to do so. (Inherited from DefinitionalObject.)
	Owner	Gets the owner of this extension. (Inherited from ObjectExtension.)
	PropagatedSignal	Gets the signal source which produces the signals received after being propagated along a communication link. If the link provides an IAccessResultService or the link or either end provides an IAccessConstraintsService, and there is no access at the time requested, then the collection of propagated signals produced by this source will be empty.
	PropagationModels	Gets a list of the propagation models applied when propagating the signal from transmitter to receiver (free space loss and doppler are added by default).
	TransmittedSignal	Gets the signal source which produces the signals transmitted along a communication link.

Top

Methods

	Name	Description
	CheckForSameDefinition(DefinitionalObject)	Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object). (Inherited from ObjectExtension.)
	CheckForSameDefinition(ObjectExtension)	Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object). (Overrides ObjectExtensionCheckForSameDefinition(ObjectExtension).)
	CheckForSameDefinition(WirelessLinkExtension)	Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
	Clone	Clones this object using the specified context. (Overrides DefinitionalObjectClone(CopyContext).)
	ComputeCurrentDefinitionHashCode	Computes a hash code based on the current properties of this object. Derived classes MUST override this method and compute a hash code that combines: a unique hash code seed, the base implementation result, and the hash codes of all new fields introduced by the derived class which are used in the CheckForSameDefinition(DefinitionalObject) method. (Overrides ObjectExtensionComputeCurrentDefinitionHashCode.)
	EnumerateDependencies	Enumerates the dependencies of this object by calling EnumerateT(T) for each object that this object directly depends upon. Derived classes which contain additional dependencies MUST override this method, call the base implementation, and enumerate dependencies introduced by the derived class. (Overrides ObjectExtensionEnumerateDependencies(DependencyEnumerator).)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	Freeze	Freezes this object. Further attempts to modify it will result in an ObjectFrozenException. (Inherited from DefinitionalObject.)
	FreezeAggregatedObjects	Called by Freeze to also freeze any objects that are considered to be a part of this object. Derived classes which contain additional aggregated objects MUST override this method, call the base implementation, and freeze aggregated objects introduced by the derived class. The objects that need to be frozen in this method are frequently created in this object's constructor and are not settable via properties. (Inherited from DefinitionalObject.)
	GetDefinitionHashCode	Gets a hash code representing the definition of this object. (Inherited from DefinitionalObject.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetPropagatedSignalAfterModel	Gets the signal source which produces the signals received after the selected propagation model.
	GetPropagatedSignalBeforeModel	Gets the signal source which produces the signals received before the given propagation model.
	GetService	Gets the service object of the specified type. (Inherited from ObjectExtension.)
	GetSignalEvaluatorFromTransmitter(EvaluatorGroup, SignalPropagationGraph, LinkPath)	Get an evaluator which produces the signal observed directly after transmission in the link direction.
	GetSignalEvaluatorFromTransmitter(EvaluatorGroup, SignalPropagationGraph, IServiceProvider)	Get an evaluator which produces the signal observed directly after transmission in the link direction based on the given time observer. If the time observer is itself the transmitter, the evaluation time is the same as the transmission time. Otherwise, the evaluation time is delayed from the transmission time.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsSameDefinition	Determines if this object has the same definition as another object. (Inherited from DefinitionalObject.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ThrowIfFrozen	Throws ObjectFrozenException if this object IsFrozen. This method should be called from any method or property that modifies this object. (Inherited from DefinitionalObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Top

Remarks

By default, PropagationModels will include an instance of FreeSpacePathLossModel and DopplerShiftModel. Since free space path loss occurs first in the list, it is computed before any other models. When adding additional models, make note of the order of the list when determining whether the model should be applied before or after the doppler shift. Alternately, the two default models can be removed individually from PropagationModels, or PropagationModels can be cleared.

This extension requires that the Owner provide ILinkService and that the Transmitter provide ISignalTransmissionService. The noise on the signal is assumed to be zero and the noise bandwidth infinite at the start of a wireless communication link.

Reference

AGI.Foundation.Communications Namespace