VoIPSender

simple module

This 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
shape_talk	double	0.824s	params for Weibull distribution
scale_talk	double	1.423s
shape_sil	double	1.089s
scale_sil	double	0.900s
is_talk	bool	true	whether transmission starts with talk or silence
sampling_time	double	0.02s
startTime	double	0s
silences	bool	true
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	mean, vector	Bps

Source code

//
// This 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.
//
simple VoIPSender like IApp
{
    parameters:
        int localPort = default(-1);
        int destPort = default(3000);
        string destAddress;
        int packetSize @unit(B) = default(40B);
        double shape_talk @unit(s) = default(0.824s); // params for Weibull distribution
        double scale_talk @unit(s) = default(1.423s);
        double shape_sil @unit(s) = default(1.089s);
        double scale_sil @unit(s) = default(0.900s);
        bool is_talk = default(true); // whether transmission starts with talk or silence
        double sampling_time @unit("s") = default(0.02s);
        double startTime @unit("s") = default(0s);
        bool silences = default(true);
        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=mean,vector);

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

File: src/apps/voip/VoIPSender.ned