Applying advanced network resource provisioning in future internet systems

Attempts by the research community to meet the expectations arising from the future internet systems, and specifically to provide Quality of Service (QoS) for multimedia multi-user sessions, have resulted in mechanisms such as Multi-User Aggregated Resource Allocation (MARA) which coordinate the control of class-based bandwidth and multicast resources in a scalable manner and without instant signaling events. The results of MARA have been promising, mainly because it drastically reduces signaling and processing overhead, and has emerged as a feasible mechanism that can be implemented in the Future Internet, despite its limitations in multi-ingress scenarios. In view of these benefits, this paper proposes the Multi-User Aggregated Resource Allocation - Multi Ingress (MARA-MI). Its main extension can be found in a decision point that is able to correlate multicast aggregated paths and assist the adaptation of the over-reservation patterns at all the ingress nodes to avoid the possibility of a QoS violation occurrence, and to overcome the main limitations of MARA so that it can serve as a promising tool in the Future Internet. The performance benefits of MARA-MI are analyzed through simulations, and compared to those of Legacy MARA, in terms of bandwidth use and latency behavior improvements, as well as an ability to maintain a good level of quality over time in multi-user sessions.