Implements the DCAF (Distributed Channel Access Function) for IEEE 802.11.

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
Dcf	compound module	Implements the DCF (Distributed 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
difsn	int	-1
cwMin	int	-1
cwMax	int	-1
rxModule	string

Properties

Name	Value	Description
class	Dcaf
display	i=block/star

Signals

Name	Type	Unit	Description
channelOwnershipChanged	bool

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode	Description
channelOwnershipChanged	channel ownership		count, vector?		sample-hold

Unassigned submodule parameters

Name	Type	Default value	Description
inProgressFrames.displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
inProgressFrames.pendingQueueModule	string	"^.pendingQueue"
inProgressFrames.originatorMacDataServiceModule	string	"^.^.originatorMacDataService"
inProgressFrames.ackHandlerModule	string	"^.^.ackHandler"

Source code

//
// Implements the DCAF (Distributed Channel Access Function) for IEEE 802.11.
//
module Dcaf extends Module
{
    parameters:
        int difsn = default(-1);
        int cwMin = default(-1);
        int cwMax = default(-1);
        string rxModule;
        @class(Dcaf);
        @display("i=block/star");
        @signal[channelOwnershipChanged](type=bool);
        @statistic[channelOwnershipChanged](title="channel ownership"; record=count,vector?; interpolationmode=sample-hold);
    submodules:
        pendingQueue: <default("PendingQueue")> like IPacketQueue {
            parameters:
                @display("p=100,100");
        }
        inProgressFrames: InProgressFrames {
            parameters:
                pendingQueueModule = default("^.pendingQueue");
                originatorMacDataServiceModule = default("^.^.originatorMacDataService");
                ackHandlerModule = default("^.^.ackHandler");
                @display("p=100,200");
        }
        contention: <default("Contention")> like IContention {
            parameters:
                @display("p=100,300");
        }
}

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

---

This documentation is released under the Creative Commons license