Package: inet.linklayer.ieee80211.mac.ratecontrol


simple module

Implements the Auto Rate Fallback (ARF) adaptive rate control mechanism.

Inheritance diagram

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


Name Type Description
AarfRateControl simple module

Implements the Adaptive ARF (AARF) rate control mechanism, which was initially described in IEEE 802.11 Rate Adaptation: A Practical Approach, by M. Lacage, M.H. Manshaei, and T. Turletti, 2004.


Name Type Default value Description
initialRate double -1bps -1 means fastest mandatory rate
interval double 50ms

The rate (unconditionally) increases after each time interval.

increaseThreshold int 10

Number of successful transmissions needed to increase the rate

decreaseThreshold int 2

Number of consecutive unsuccessful transmissions (in the sense that ACK does not arrive within timeout) needed to increase the rate

increaseThresholdFactor double 1

When the transmission of probing packet fails, we multiply by "increaseThresholdFactor" the increaseThreshold.

maxIncreaseThreshold int 50

Upper bound for increaseThreshold.


Name Value Description
display i=block/cogwheel


Name Type Unit


Name Title Source Record Unit Interpolation Mode
datarateChanged datarate vector sample-hold

Source code

// Implements the Auto Rate Fallback (ARF) adaptive rate
// control mechanism.
simple ArfRateControl extends AarfRateControl
        increaseThresholdFactor = default(1);

File: src/inet/linklayer/ieee80211/mac/ratecontrol/ArfRateControl.ned