Implements EDCA (Enhanced Distributed Channel Access) for IEEE 802.11. The implementation allows for a configurable number of access categories, not just four as defined by the standard.

Usage diagram

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Used in compound modules

Name	Type	Description
Hcf	compound module	Implements the HCF (Hybrid Coordination Function) for IEEE 802.11.

Extends

Name	Type	Description
Module	compound module	Base module for all INET compound modules.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
numEdcafs	int	4
rxModule	string
rateSelectionModule	string

Properties

Name	Value	Description
class	Edca
display	i=block/star

Unassigned submodule parameters

Name	Type	Default value	Description
edcaf.inProgressFrames.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
edcaf.inProgressFrames.pendingQueueModule	string	"^.pendingQueue"
edcaf.inProgressFrames.originatorMacDataServiceModule	string	"^.^.^.originatorMacDataService"
edcaf.inProgressFrames.ackHandlerModule	string	"^.ackHandler"
edcaf.ackHandler.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
edcaf.txopProcedure.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
edcaf.txopProcedure.txopLimit	double	-1s
edcaf.recoveryProcedure.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
edcaf.recoveryProcedure.shortRetryLimit	int	7
edcaf.recoveryProcedure.longRetryLimit	int	4
mgmtAndNonQoSRecoveryProcedure.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
mgmtAndNonQoSRecoveryProcedure.shortRetryLimit	int	7
mgmtAndNonQoSRecoveryProcedure.longRetryLimit	int	4

Source code

//
// Implements EDCA (Enhanced Distributed Channel Access) for IEEE 802.11.
// The implementation allows for a configurable number of access categories,
// not just four as defined by the standard.
//
module Edca extends Module
{
    parameters:
        int numEdcafs = default(4);
        string rxModule;
        string rateSelectionModule;

        *.rateSelectionModule = "^." + this.rateSelectionModule;
        *.rxModule = "^." + this.rxModule;
        *.collisionControllerModule = "^.collisionController";

        edcaf[0].accessCategory = default("AC_BK");
        edcaf[1].accessCategory = default("AC_BE");
        edcaf[2].accessCategory = default("AC_VI");
        edcaf[3].accessCategory = default("AC_VO");

        @class(Edca);
        @display("i=block/star");
    submodules:
        edcaf[numEdcafs]: Edcaf {
            parameters:
                @display("p=100,100,row,150");
        }
        collisionController: <default("EdcaCollisionController")> like ICollisionController {
            parameters:
                @display("p=100,200");
        }
        mgmtAndNonQoSRecoveryProcedure: NonQosRecoveryProcedure {
            parameters:
                cwCalculatorModule = "^.edcaf[1]"; // Best effort
                rtsPolicyModule = "^.^.rtsPolicy";
                @display("p=400,200");
        }
}

File: src/inet/linklayer/ieee80211/mac/channelaccess/Edca.ned

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