An overview of intra-domain QoS mechanisms evaluation [articol]

Abstract

There has been a significant amount of work in the past decade to extend the IP architectures and to provide QoS support for multimedia applications. IP networks are evolving from a best-effort service support model, where all transmissions are considered equal and no delivery guarantees are made, to one that can provide predictable support, according to specific QoS requirements. Furthermore, recent applications are associated with user interactions, and the ability to browse different scenarios at the same time. All these aspects made the researchers look for other solutions in order to assure a QoS support. This paper includes the results obtained in order to provide a global analysis of the QoS parameters on four network layers, offers the mobility effect over the QoS parameters, especially in case of end-to-end delays introduced by handover procedure in different wireless access systems categories.