This radio medium model provides a very simple but fast and predictable physical layer behavior. The idea behind this analog model is to describe transmissions with a few distance-based parameters: communication range, interference range, and detection range. Whether the reception is successful or not depends on the distance between the transmitter and the receiver.

<b>See also:</b> UnitDiskMediumAnalogModel, UnitDiskTransmitterAnalogModel, UnitDiskReceiverAnalogModel.

<b>See also:</b> DimensionalRadioMedium, ScalarRadioMedium

Inheritance diagram

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

Used in

Name	Type	Description
AODVNetwork	network	(no description)
AODVNetwork	network	AODV network with an external Ethernet-connected host that can receive traffic from the wireless AODV network. The router acts as the gateway between the wireless AODV network and the wired Ethernet network.
HiddenNodeShowcase	network	(no description)
NeighborCacheTest	network	(no description)
Net	network	(no description)
ShortestPath	network	(no description)
SimpleRREQ	network	(no description)
SimpleRREQ2	network	(no description)

Extends

Name	Type	Description
RadioMedium	compound module	The medium model describes the shared physical medium where communication takes place. It keeps track of radios, noise sources, ongoing transmissions, background noise, and other ongoing noises. The medium computes when, where and how transmissions and noises arrive at receivers. It also efficiently provides the set of interfering transmissions and noises for the receivers.

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
physicalEnvironmentModule	string	"physicalEnvironment"	Module path of the physical environment model
signalAnalogRepresentation	string	"unitDisk"
rangeFilter	string	""	filter parameters that control when signals are sent to receiver radios
radioModeFilter	bool	false	When enabled, the radio medium doesn't send signals to a radio if it's neither in receiver nor in transceiver mode
listeningFilter	bool	false	When enabled, the radio medium doesn't send signals to a radio if it listens on the channel in an incompatible mode (e.g. different carrier frequency and bandwidth, different modulation)
macAddressFilter	bool	false	When enabled, the radio medium doesn't send signals to a radio if the destination MAC address differs
recordTransmissionLog	bool	false	logging parameters
recordReceptionLog	bool	false	When enabled, the medium writes one line per reception into the communication log file
sameTransmissionStartTimeCheck	string	"error"	Specifies what should happen if two transmissions start at the same moment

Properties

Name	Value	Description
class	RadioMedium
display	i=misc/sun

Signals

Name	Type	Unit	Description
radioRemoved
signalDepartureStarted
radioAdded
signalArrivalStarted
signalAdded
signalDepartureEnded
signalRemoved
signalArrivalEnded

Unassigned submodule parameters

Name	Type	Default value	Description
neighborCache.refillPeriod	double

Source code

//
// This radio medium model provides a very simple but fast and predictable
// physical layer behavior. The idea behind this analog model is to describe
// transmissions with a few distance-based parameters: communication range,
// interference range, and detection range. Whether the reception is successful
// or not depends on the distance between the transmitter and the receiver.
//
// @see UnitDiskMediumAnalogModel, UnitDiskTransmitterAnalogModel, UnitDiskReceiverAnalogModel.
// @see DimensionalRadioMedium, ScalarRadioMedium
//
module UnitDiskRadioMedium extends RadioMedium
{
    parameters:
        signalAnalogRepresentation = default("unitDisk");
}

File: src/inet/physicallayer/wireless/common/medium/UnitDiskRadioMedium.ned

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