Package: inet.linklayer.ieee80211.mac.ratecontrol
AarfRateControl
simple moduleImplements 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.
Inheritance diagram
The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.
Known subclasses
Name | Type | Description |
---|---|---|
ArfRateControl | simple module |
Implements the Auto Rate Fallback (ARF) adaptive rate control mechanism. |
Parameters
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 | 2 |
When the transmission of probing packet fails, we multiply by "increaseThresholdFactor" the increaseThreshold. |
maxIncreaseThreshold | int | 50 |
Upper bound for increaseThreshold. |
Properties
Name | Value | Description |
---|---|---|
display | i=block/cogwheel |
Signals
Name | Type | Unit |
---|---|---|
datarateChanged |
Statistics
Name | Title | Source | Record | Unit | Interpolation Mode |
---|---|---|---|---|---|
datarateChanged | datarate | vector | sample-hold |
Direct method calls (observed)
call to | function | info |
---|---|---|
Ieee80211Interface | inet::NetworkInterface::receiveSignal | POST_MODEL_CHANGE |
Called methods (observed)
function | info | call from |
---|---|---|
inet::ieee80211::AarfRateControl::getRate | getRate | Dcf |
inet::ieee80211::AarfRateControl::receiveSignal | modesetChanged | Ieee80211Mac |
Source code
// // 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. // simple AarfRateControl like IRateControl { parameters: double initialRate @unit(bps) = default(-1bps); // -1 means fastest mandatory rate double interval @unit(s) = default(50ms); // The rate (unconditionally) increases after each time interval. int increaseThreshold = default(10); // Number of successful transmissions needed to increase the rate int decreaseThreshold = default(2); // Number of consecutive unsuccessful transmissions (in the sense that ACK does not arrive within timeout) // needed to increase the rate double increaseThresholdFactor = default(2); // When the transmission of probing packet fails, we multiply by "increaseThresholdFactor" the increaseThreshold. int maxIncreaseThreshold = default(50); // Upper bound for increaseThreshold. @display("i=block/cogwheel"); @signal[datarateChanged]; @statistic[datarateChanged](title="datarate"; record=vector; interpolationmode=sample-hold); }File: src/inet/linklayer/ieee80211/mac/ratecontrol/AarfRateControl.ned