Model of QoS on NGN: An Analysis of Performance

This paper presents a Model of Quality of Service (QoS) for Next Generation Networks (NGN), that consist of a tower of five defined layers such as the Model Layer of QoS, Control of Admission, QoS in the Routing, QoS in the Signaling, and MAC QoS. In addition, the model raises a method based on the concept of segregation of functions defining two functional networks along with the tasks of QoS. Then, the policies of Access Control, the protocols and the algorithms of signaling, and routing, as well as the aspects related to media access were established. In order to verify the performance of the model, a Design of Experiments on a NGN Pilot on simulation tool OPNET Modeler was conducted. The statistical analysis consisted of an analysis of variance on the output variables Delay, Jitter and Throughput, whose outcome determined the significant factors that impacted the model metrics.