The chapter presents the jitter and packet-loss modeling onVoIP traffic by means of network measurements. We basically modeled the main QoS parameters of VoIP traffic which could be related with regular VoIP communications over regular-wired networks as well as for mVoIP (which functions as an application that runs over any wireless network technology that provides data access to the Internet). Hence, our modeling work is basically relevant to both regular VoIP and mVoIP technologies.

Chapter Contents:

• 7.1 Introduction
• 7.2 Modern communication networks: from simple packet network to multiservice network
• 7.3 Voice over IP (VoIP) and quality of service (QoS)
• 7.3.1 Basic structure of a VoIP system
• 7.3.2 VoIP frameworks: H.323 and SIP
• 7.3.2.1 H.323
• 7.3.2.2 Session initiation protocol
• 7.3.3 Basic concepts of QoS
• 7.3.4 QoS assessment
• 7.3.5 Oneway delay
• 7.3.6 Jitter
• 7.3.7 Packetloss rate
• 7.4 Self-similarity processes in modern communication networks
• 7.4.1 Self-similar processes
• 7.4.2 Haar wavelet-based decomposition and Hurst index estimation
• 7.5 QoS parameters modeling on VoIP traffic
• 7.5.1 Jitter modeling by self-similar and multifractal processes
• 7.5.2 Packet-loss modeling by Markov models
• 7.5.3 Packet-loss simulation and proposed model
• 7.6 Conclusions
• References

Inspec keywords: telecommunication traffic; Internet telephony; quality of service; jitter

Other keywords: wireless network technology; regular-wired networks; Internet; data access; packet-loss modeling; QoS parameters; network measurements; modern communication; regular VoIP communications; VoIP traffic accurate modeling

Subjects: Computer communications; Telephony; Other computer networks