Radio

Package: inet.physicallayer.wireless.common.radio.packetlevel

Radio

compound module

The radio model describes the physical device that is capable of transmitting and receiving signals on the medium. It contains an antenna model, a transmitter model, a receiver model, and an energy consumer model.

The radio model supports changing radio mode, transmission power, or bitrate via ConfigureRadioCommand, or with direct C++ function calls.

switchingTimes parameter should be regarded as a 5x5 matrix: 

              OFF SLEEP RECEIVER TRANSMITTER TRANSCEIVER
OFF           0 0 0 0 0
SLEEP         0 0 0 0 0
RECEIVER      0 0 0 0 0
TRANSMITTER   0 0 0 0 0
TRANSCEIVER   0 0 0 0 0
The corresponding RadioMode pairs contain the time needed to switch from one state to another. For example: the 6th number identifies the time needed to switch from SLEEP to OFF.

The first entry of the switchingTimes string indicates the time-related metric prefix and it MUST be s, ms or ns.

antenna : like IAntenna IsotropicAntenna: This antenna model describes the theoretical point source which radiates the same intensity of... IAntenna: The antenna model describes the physical device (a part of the radio) which converts electric... Source: antenna: <default("IsotropicAntenna")> like IAntenna { parameters: @display("p=100,100"); } transmitter : like ITransmitter ITransmitter: The transmitter model describes the physical process which converts packets into electric signals. Source: transmitter: <> like ITransmitter { parameters: @display("p=100,200"); } receiver : like IReceiver IReceiver: The receiver model describes the physical process which converts electric signals into packets. Source: receiver: <> like IReceiver { parameters: @display("p=100,300"); } energyConsumer : like IEnergyConsumer IEnergyConsumer: The energy consumer models describe the energy consumption process of devices over time. Source: energyConsumer: <default("")> like IEnergyConsumer if typename != "" { parameters: @display("p=100,400"); }

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.

Known subclasses

Name Type Description
Ieee802154UwbIrRadio compound module (no description)
NarrowbandRadioBase compound module

This module servces as a base module for narrowband radio models.
UnitDiskRadio compound module

This radio model provides a very simple but fast and predictable physical layer behavior. It must be used in conjunction with the UnitDiskRadioMedium model.

Extends

Name Type Description
PhysicalLayerBase simple module

Module base for different physical layers.

Parameters

Name Type Default value Description
radioMediumModule string "radioMedium"

module path of the medium module where this radio communicates
energySourceModule string ""

module path of the energy source module which provides energy to the radio
initialRadioMode string "off"
switchingTimes string "ms 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"

time parameters to switch between radio modes
sendRawBytes bool false

when true packets are serialized into a sequence of bytes before sending out
separateTransmissionParts bool false

when enabled the transmission of preamble, header and data part are simulated separately
separateReceptionParts bool false

when enabled the reception of preamble, header and data part are simulated separately
displayCommunicationRange bool false

if true communication range is displayed as a blue circle around the node
displayInterferenceRange bool false

if true interference range is displayed as a gray circle around the node

Properties

Name Value Description
display i=block/wrxtx
class Radio

Gates

Name Direction Size Description
upperLayerIn input
upperLayerOut output
radioIn input

Signals

Name Type Unit
receptionStateChanged long
radioModeChanged long
transmissionStarted
receptionEnded
transmittedSignalPartChanged long
receptionStarted
packetReceivedFromUpper cPacket
receivedSignalPartChanged long
packetSentToUpper cPacket
transmissionStateChanged long
listeningChanged
transmissionEnded

Statistics

Name Title Source Record Unit Interpolation Mode
receptionState Radio reception state receptionStateChanged count, vector sample-hold
bitErrorRate Bit error rate bitErrorRate(packetSentToUpper) histogram
radioMode Radio mode radioModeChanged count, vector sample-hold
packetErrorRate Packet error rate packetErrorRate(packetSentToUpper) histogram
symbolErrorRate Symbol error rate symbolErrorRate(packetSentToUpper) histogram
transmissionState Radio transmission state transmissionStateChanged count, vector sample-hold
minSnir Min SNIR minimumSnir(packetSentToUpper) histogram

Source code

//
// The radio model describes the physical device that is capable of transmitting
// and receiving signals on the medium. It contains an antenna model, a
// transmitter model, a receiver model, and an energy consumer model.
//
// The radio model supports changing radio mode, transmission power, or bitrate
// via ~ConfigureRadioCommand, or with direct C++ function calls.
//
// switchingTimes parameter should be regarded as a 5x5 matrix:
// <pre>
//               OFF SLEEP RECEIVER TRANSMITTER TRANSCEIVER
// OFF           0 0 0 0 0
// SLEEP         0 0 0 0 0
// RECEIVER      0 0 0 0 0
// TRANSMITTER   0 0 0 0 0
// TRANSCEIVER   0 0 0 0 0
// </pre>
// The corresponding RadioMode pairs contain the time needed to
// switch from one state to another.
// For example: the 6th number identifies the time needed to switch
// from SLEEP to OFF.
//
// The first entry of the switchingTimes string indicates the
// time-related metric prefix and it MUST be s, ms or ns.
//
module Radio extends PhysicalLayerBase like IRadio
{
    parameters:
        string radioMediumModule = default("radioMedium"); // module path of the medium module where this radio communicates
        string energySourceModule = default("");           // module path of the energy source module which provides energy to the radio

        string initialRadioMode @enum("off","sleep","receiver","transmitter","transceiver") = default("off");
        string switchingTimes = default("ms 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"); // time parameters to switch between radio modes

        bool sendRawBytes = default(false); // when true packets are serialized into a sequence of bytes before sending out

        bool separateTransmissionParts = default(false); // when enabled the transmission of preamble, header and data part are simulated separately
        bool separateReceptionParts = default(false);    // when enabled the reception of preamble, header and data part are simulated separately

        bool displayCommunicationRange = default(false); // if true communication range is displayed as a blue circle around the node
        bool displayInterferenceRange = default(false);  // if true interference range is displayed as a gray circle around the node

        *.energySourceModule = default(absPath(this.energySourceModule));

        @class(Radio);

        @signal[packetSentToUpper](type=cPacket);
        @signal[packetReceivedFromUpper](type=cPacket);
        @signal[radioModeChanged](type=long);
        @signal[listeningChanged];
        @signal[receptionStateChanged](type=long);
        @signal[transmissionStateChanged](type=long);
        @signal[receivedSignalPartChanged](type=long);
        @signal[transmittedSignalPartChanged](type=long);
        @signal[transmissionStarted];
        @signal[transmissionEnded];
        @signal[receptionStarted];
        @signal[receptionEnded];

        @statistic[radioMode](title="Radio mode"; source=radioModeChanged; record=count,vector; interpolationmode=sample-hold);
        @statistic[receptionState](title="Radio reception state"; source=receptionStateChanged; record=count,vector; interpolationmode=sample-hold);
        @statistic[transmissionState](title="Radio transmission state"; source=transmissionStateChanged; record=count,vector; interpolationmode=sample-hold);

        @statistic[minSnir](title="Min SNIR"; source=minimumSnir(packetSentToUpper); record=histogram);
        @statistic[packetErrorRate](title="Packet error rate"; source=packetErrorRate(packetSentToUpper); record=histogram);
        @statistic[bitErrorRate](title="Bit error rate"; source=bitErrorRate(packetSentToUpper); record=histogram);
        @statistic[symbolErrorRate](title="Symbol error rate"; source=symbolErrorRate(packetSentToUpper); record=histogram);

    submodules:
        antenna: <default("IsotropicAntenna")> like IAntenna {
            parameters:
                @display("p=100,100");
        }
        transmitter: <> like ITransmitter {
            parameters:
                @display("p=100,200");
        }
        receiver: <> like IReceiver {
            parameters:
                @display("p=100,300");
        }
        energyConsumer: <default("")> like IEnergyConsumer if typename != "" {
            parameters:
                @display("p=100,400");
        }
}
File: src/inet/physicallayer/wireless/common/radio/packetlevel/Radio.ned

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