VoipSender

simple module

Represents a model for the sender of Voice-over-IP (VoIP) traffic. It generates packets by alternating "talk spurts" and "silence" periods, with their respective durations modeled by a Weibull distribution. During talk spurts, fixed-size packets are generated periodically and sent over UDP to a specified destination address and port.

Inheritance diagram

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

Parameters

Name	Type	Default value	Description
localPort	int	-1
destPort	int	3000
destAddress	string
packetSize	int	40B
shapeTalk	double	0.824s	Params for Weibull distribution
scaleTalk	double	1.423s
shapeSil	double	1.089s
scaleSil	double	0.900s
isTalk	bool	true	Whether transmission starts with talk or silence
samplingTime	double	0.02s
startTime	double	0s
silences	bool	true
dscp	int	-1	If not -1, set the DSCP field of sent IP packets (encoded into TOS as dscp << 2)
tos	int	-1	If not -1, set the Type of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

Properties

Name	Value	Description
display	i=block/source

Gates

Name	Direction	Size	Description
socketOut	output
socketIn	input

Signals

Name	Type	Unit	Description
voipGeneratedThroughput

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode	Description
voipGeneratedThroughput	Throughput generated by the application	voipGeneratedThroughput	simu5g_rateavg, vector	Bps

Source code

//
// Represents a model for the sender of Voice-over-IP (VoIP) traffic.
// It generates packets by alternating "talk spurts" and "silence" periods, with their respective
// durations modeled by a Weibull distribution. During talk spurts, fixed-size packets are
// generated periodically and sent over UDP to a specified destination address and port.
//
simple VoipSender like IApp
{
    parameters:
        int localPort = default(-1);
        int destPort = default(3000);
        string destAddress;
        int packetSize @unit(B) = default(40B);
        double shapeTalk @unit(s) = default(0.824s); // Params for Weibull distribution
        double scaleTalk @unit(s) = default(1.423s);
        double shapeSil @unit(s) = default(1.089s);
        double scaleSil @unit(s) = default(0.900s);
        bool isTalk = default(true); // Whether transmission starts with talk or silence
        double samplingTime @unit("s") = default(0.02s);
        double startTime @unit("s") = default(0s);
        bool silences = default(true);
        int dscp = default(-1); // If not -1, set the DSCP field of sent IP packets (encoded into TOS as dscp << 2)
        int tos = default(-1); // If not -1, set the Type of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

        @signal[voipGeneratedThroughput];
        @statistic[voipGeneratedThroughput](title="Throughput generated by the application"; unit="Bps"; source="voipGeneratedThroughput"; record=simu5g_rateavg,vector);

        @display("i=block/source");
    gates:
        output socketOut;
        input socketIn;
}

File: src/simu5g/apps/voip/VoipSender.ned