tgax-voip-example.cc File Reference

A simple VoIP traffic generator example over Wi-Fi. More...

#include "ns3/applications-module.h"
#include "ns3/core-module.h"
#include "ns3/internet-module.h"
#include "ns3/mobility-module.h"
#include "ns3/network-module.h"
#include "ns3/wifi-module.h"

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Functions
void	PacketReceived (std::string context, Ptr< const Packet > packet, const Address &address)
	Callback invoked when the PacketSink receives a packet.
void	VoipPacketSent (Ptr< const Packet > packet, Time jitter)
	Callback invoked when a VoIP packet is transmitted.
void	VoipStateChanged (TgaxVoipTraffic::VoiceActivityState state, Time duration)
	Callback invoked when the VoIP application state changes (active/silence).

Detailed Description

A simple VoIP traffic generator example over Wi-Fi.

This example demonstrates how to set up a basic ns-3 simulation with VoIP traffic over a Wi-Fi network. It includes three configurations:

1. IPv4/UDP: VoIP traffic over IPv4 using UDP sockets
2. IPv6/UDP: VoIP traffic over IPv6 using UDP sockets
3. PacketSocket: VoIP traffic using raw packet sockets

The simulation consists of:

• A simple Wi-Fi network with one AP (Access Point) and one STA (Station)
• VoIP traffic flowing from the STA to the AP
• Application-level tracing to observe VoIP packets being sent
• State change tracing to see voice activity transitions

To run with IPv4/UDP (default): ./ns3 run tgax-voip-example To run with IPv6/UDP: ./ns3 run "tgax-voip-example --socketType=ipv6" To run with PacketSocket: ./ns3 run "tgax-voip-example --socketType=packet"

To disable verbose logging: ./ns3 run "tgax-voip-example --verbose=false"

Definition in file tgax-voip-example.cc.

Function Documentation

PacketReceived()

void PacketReceived	(	std::string	context,
		Ptr< const Packet >	packet,
		const Address &	address )

Callback invoked when the PacketSink receives a packet.

Parameters

context	The context string
packet	The received packet
address	The sender's address

Definition at line 344 of file tgax-voip-example.cc.

References NS_LOG_INFO.

VoipPacketSent()

void VoipPacketSent	(	Ptr< const Packet >	packet,
		Time	jitter )

Callback invoked when a VoIP packet is transmitted.

Parameters

packet	The transmitted packet
jitter	The jitter applied to the packet

Definition at line 328 of file tgax-voip-example.cc.

References ns3::Time::As(), NS_LOG_INFO, and ns3::Time::US.

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VoipStateChanged()

void VoipStateChanged	(	TgaxVoipTraffic::VoiceActivityState	state,
		Time	duration )

Callback invoked when the VoIP application state changes (active/silence).

Parameters

state	The new voice activity state
duration	The expected duration in this state

Definition at line 335 of file tgax-voip-example.cc.

References ns3::TgaxVoipTraffic::ACTIVE_TALKING, ns3::Time::As(), ns3::Time::MS, and NS_LOG_INFO.

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