Package: inet.linklayer.ieee80211.mac.channelaccess

Edca

compound module

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.

Used in compound modules

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

Parameters

Name	Type	Default value
numEdcafs	int	4
rxModule	string
rateSelectionModule	string

Properties

Name	Value	Description
class	Edca
display	i=block/star

Unassigned submodule parameters

Name	Type	Default value
edcaf.inProgressFrames.pendingQueueModule	string	"^.pendingQueue"
edcaf.inProgressFrames.originatorMacDataServiceModule	string	"^.^.^.originatorMacDataService"
edcaf.inProgressFrames.ackHandlerModule	string	"^.ackHandler"
edcaf.txopProcedure.txopLimit	double	-1s
edcaf.recoveryProcedure.shortRetryLimit	int	7
edcaf.recoveryProcedure.longRetryLimit	int	4
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
{
    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