This module models the functionalities of the MEC orchestrator within a Multi-access Edge Computing (MEC) system. Specifically, it manages the dynamic instantiation and termination of MEC applications on the MEC hosts belonging to the MEC system. Upon receiving a MEC app instantiation request from the UALCMP module, this module is responsible for selecting the MEC host on which the MEC application is to be instantiated, according to a configurable policy.

Used in

Name	Type	Description
ExtMecAppExample	network	(no description)
ExtUeAppExample	network	(no description)
ExtUeAppMecAppExample	network	(no description)

Parameters

Name	Type	Default value	Description
binderModule	string	"binder"
selectionPolicy	string	"MecServiceBased"	available policies: "MecHostBased", "MecServiceBased", "AvailableResourcesBased"
mecHostIndex	int	0	to be used with the MecHostBased policybased
mecHostList	object	[]
mecApplicationPackageList	object	[]
onboardingTime	double	50ms	times to simulate lifecycle operations
instantiationTime	double	50ms
terminationTime	double	50ms

Properties

Name	Value	Description
display	i=device/mainframe;bgb=1006,692

Gates

Name	Direction	Size	Description
toUALCMP	output
fromUALCMP	input

Source code

//
// This module models the functionalities of the MEC orchestrator within a Multi-access Edge
// Computing (MEC) system. Specifically, it manages the dynamic instantiation and
// termination of MEC applications on the MEC hosts belonging to the MEC system. Upon
// receiving a MEC app instantiation request from the ~UALCMP module, this module is
// responsible for selecting the MEC host on which the MEC application is to be instantiated, according
// to a configurable policy.
//
simple MecOrchestrator
{
    parameters:
        @display("i=device/mainframe;bgb=1006,692");
        string binderModule = default("binder");

        string selectionPolicy @enum(MecHostBased,MecServiceBased,AvailableResourcesBased) = default("MecServiceBased"); // available policies: "MecHostBased", "MecServiceBased", "AvailableResourcesBased"
        int mecHostIndex = default(0); // to be used with the MecHostBased policybased
        object mecHostList = default([]);
        object mecApplicationPackageList = default([]);

        // times to simulate lifecycle operations
        double onboardingTime @unit(s) = default(50ms);
        double instantiationTime @unit(s) = default(50ms);
        double terminationTime @unit(s) = default(50ms);

    gates:
        output toUALCMP;
        input fromUALCMP;
}

File: src/nodes/mec/MECOrchestrator/MecOrchestrator.ned

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