(no description)

Inheritance diagram

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

Extends

Name	Type	Description
FlatRadioBase	compound module	This module servces as a base module for flat radio models.

Parameters

Name	Type	Default value	Description
antennaType	string	"IsotropicAntenna"	NED type of the antenna model
transmitterType	string	"Ieee802154NarrowbandScalarTransmitter"	NED type of the transmitter model
receiverType	string	"Ieee802154NarrowbandScalarReceiver"	NED type of the receiver model
energyConsumerType	string	""	NED type of the energy consumer model
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
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
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
carrierFrequency	double	2450 MHz	center frequency of the band where the radio transmits and receives signals on the medium
bandwidth	double	2.8 MHz	bandwidth of the band where the radio transmits and receives signals on the medium

Properties

Name	Value	Description
class	FlatRadioBase
display	i=block/wrxtx

Gates

Name	Direction	Size	Description
upperLayerIn	input
upperLayerOut	output
radioIn	input

Signals

Name	Type	Unit
receptionStateChanged	long
bitErrorRate
radioModeChanged	long
transmittedSignalPartChanged	long
packetReceivedFromUpper	cPacket
receivedSignalPartChanged	long
packetErrorRate
symbolErrorRate
packetSentToUpper	cPacket
transmissionStateChanged	long
listeningChanged
minSNIR

Statistics

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

Source code

module Ieee802154NarrowbandScalarRadio extends FlatRadioBase
{
    parameters:
        antennaType = default("IsotropicAntenna");
        transmitterType = default("Ieee802154NarrowbandScalarTransmitter");
        receiverType = default("Ieee802154NarrowbandScalarReceiver");

        carrierFrequency = 2450 MHz;

        // B_20dB ATmega256RFR2 (page 564)
        bandwidth = default(2.8 MHz);

        // 802.15.4-2006 (page 28)
        *.bitrate = default(250 kbps);

        // PHY Header (without preamble), 802.15.4-2006 (page 43)
        // 1 octet SFD
        // 7 bit Frame length
        // 1 bit Reserved
        *.headerBitLength = (1*8 + 7 + 1) * 1 b;

        // Preamble
        // 4 octets Preamble
        // 1 symbol of 16us -> 4 bit
        transmitter.preambleDuration = (4*8/4) * 16 us;

        // RSSI sensitivity (ATmega256RFR2, page 566)
        receiver.energyDetection = default(-90dBm);

        // Receiver sensitivity (ATmega256RFR2, page 565)
        // TODO That is not quite true, because sensitivity
        //      is defined as the input signal power that yields
        //      a PER < 1% for a PSDU of 20 octets, but INET handles it
        //      as minimum reception power.
        receiver.sensitivity = default(-100dBm);

        // There is no fixed boundary, because of the
        // DSSS and the capture effect. Taking the sensitivity minus some
        // arbitrary value as an approximate guess.
        receiver.minInterferencePower = default(-120dBm);

        // Minimum SNIR
        // -8 dB results into 98% PER for a PSDU of 20 octets
        receiver.snirThreshold = default(-8 dB);

        // TX Output power (typ. 3.5 dBm, ATmega256RFR2, page 564)
        transmitter.power = default(2.24mW);

        @class(FlatRadioBase);
}

File: src/inet/physicallayer/ieee802154/packetlevel/Ieee802154NarrowbandScalarRadio.ned

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