Research Unit in Networking
	Abstract

Adaptation dynamique des débits des couches pour la transmission vidéo multipoint N. Bonmariage1 and G. Leduc1 1 Research unit in Networking, EECS department, University of Liège, Belgium 2 Research unit in Networking, EECS department, University of Liège, Belgium (2002) Abstract The heterogeneous environment of multicast video streams naturally raises a network performance issue which can be addressed using a layered transmission scheme. A receiver is able to adapt the flow rate to its capacity by choosing an adequate subscription level among the different layers. A traditional static approach doesn't allow a full usage of the network capacity and should be combined with an adaptive transmission rate in each layer. We study the dynamic rate adaptation problem and develop a framework integrating a multirate adaptation algorithm and a transmission protocol for layered multicast video. Our main focus is the development of an adaptation algorithm offering rates matching the capacities of the receivers. We also want to set up a congestion control scheme and offer fairness towards TCP flows, while keeping a scalable framework. We evaluate and analyze the proposed architecture using simulations to point out its main characteristics. Keywords congestion control, dynamic adaptation, fairness, layered video, multicast

[ Home | People | Research Topics | Projects | Publications | IFIP WG 6.1 | Events and Conferences | CSS | How to Reach Us ]

Editor: - G. Leduc - Webmaster: - RUN Admin -

Still running IPv4 at: 18.97.9.173...

RUN | Montefiore | ULg © 2000-2025.