Package: inet.linklayer.ieee80211.mac.contract

IContention

module interface

Interface for modules that implement contention-based channel access. For each frame, Contention listens on the channel for a DIFS (AIFS) period then for a random backoff period before transitting the frame, and defers when busy channel is sensed. After receiving a corrupted frame, EIFS is used instead of the original DIFS (AIFS).

Inheritance diagram

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

Implemented by

Name	Type	Description
Contention	simple module	The default implementation of IContention.

Used in compound modules

Name	Type	Description
Dcaf	compound module	Implements the DCAF (Distributed Channel Access Function) for IEEE 802.11.
Edcaf	compound module	Implements EDCAF (Enhanced Distributed Channel Access Function) for IEEE 802.11. EDCAF represents one access category within EDCA.

Properties

Name	Value	Description
display	i=block/timer

Source code

//
// Interface for modules that implement contention-based channel access.
// For each frame, Contention listens on the channel for a DIFS (AIFS) period
// then for a random backoff period before transitting the frame, and defers when
// busy channel is sensed. After receiving a corrupted frame, EIFS is used instead
// of the original DIFS (AIFS).
//
moduleinterface IContention
{
    parameters:
        @display("i=block/timer");
}

File: src/inet/linklayer/ieee80211/mac/contract/IContention.ned