Quality of Service Parameters Modeling of Voice over IP Traffic
Homero Toral Cruz · 2015
Voice over Internet Protocol (VoIP) is one of the most attractive and important service nowadays in telecommunication networks. However, when the voice traffic is transported over IP Networks, the packet based transmission may introduce impairments and it has influence on the Quality of Service (QoS) perceived by the end users. The voice quality of VoIP systems depends on many QoS parameters, such as: bandwidth, one way delay (OWD), jitter, packet loss rate, CODEC type, voice data length, and dejitter buffer size. Particularly, jitter and Packet Loss Rate (PLR) have an important impact on voice quality. These parameters are intricately related to each other and can be used to configure other parameters to optimum values in order to afford good levels of voice quality.