Engineering for real-time service in NGI

Next Generation Internet (NGI) will offer a multitude of services, some of which have real-time requirements like audio, video and multimedia, and should do so with an acceptable QoS. New knowledge is needed to do the required design, planning, dimensioning, and management. Service Level Agreements (SLAs) will be the contract between network operators/service providers/ users and should describe all relevant aspects of QoS to be expected.

Several architectures like IntServ, DiffServ and MPLS are proposed to achieve these goals, but the proposals need much further studies. Service differentiation is a key issue, but how to give end-to-end guarantees with respect to loss and delay needs much further research. In addition to service differentiation, admission control and possibly resource reservation are measures to be taken. The admission control schemes must be studied together with measures taken for congestion control. The goal is admission control algorithms that are only active during congestion in the system. Laboratory experiments and modelbased studies are needed to evaluate the various approaches.

Relations to external projects and activities:
EuroNGI, WP.JRA.2.1 and WP.JRA.2.2

Project coordinator: Peder J. Emstad
Professors: Peder J. Emstad
Postdoc: Yuming Jiang
PhD student: Anne Nevin