VoipSender¶

//
// 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;
}