Showing papers by "Bernard Cousin published in 2003"

SEM: a new small group multicast routing protocol

Abstract: Several multicast mechanisms, known as small group multicast, were proposed that scale better with the number of multicast sessions than traditional multicast does. We propose a new approach, simple explicit multicast (SEM), which uses an efficient method to construct multicast trees and deliver multicast packets. SEM is original because it adopts the source-specific channel address allocation, reduces forwarding states in non-branching node routers and implements data distribution using unicast trees.

Multicast routing simulator over MPLS networks

Abstract: Multicast and multi-protocol label switching (MPLS) are two complementary technologies. Merging these two technologies where multicast trees are constructed over MPLS networks will enhance performance and present an efficient solution for multicast scalability and control overhead problems. We present a simulator for multicast routing over an MPLS network where we choose PIM-SM (source specific tree) as the multicast routing protocol. A simulator for multicast routing over MPLS network is an original idea since this kind of simulator never existed before and it will help researchers to simulate and evaluate their MPLS multicast related techniques.

MPLS Multicast Traffic Engineering

Abstract: In this paper, we present multicast traffic engineering and we compare it to unicast traffic engineering. We study the advantages given by the integration of multicasting and MPLS. We present current proposals for multicast traffic engineering and using MPLS network. We describe our approach, the MPLS multicast tree (MMT) protocol. In order to reduce forwarding states and enhance scalability, MMT utilizes MPLS LSPs between branching routers of the multicast tree. We present a simulator for MMT and finally we discuss some simulation results.

The ASSET Architecture: Integrating Media Applications and Broadcasting Products in a Unified Model and Framework

Abstract: To design and develop an Architectural Solution for Services Enhancing digital Television is the goal of the ASSET project. This European funded project gathers eight partners (Compaq-HP Group, THOMSON, Dalet a.n.n, INESC Porto, INRIA, Institut fuer Rundfunktechnik, Front Porch Digital International, SHS Multimedia) to create a universal and unified system architecture that shall greatly improve interoperability in broadcasting environments. The implementation of this solution will indeed make integration of different proprietary systems and media applications much easier. This paper outlines the ASSET architecture, describes some key-concepts of the ASSET framework and presents the prototype currently under development.

The ASSET Architecture - Integrating Media Applications and Products through a Unified API

Abstract: Applications and products currently available for the broadcasting market are vertically integrated or proprietary. They are based on components requiring specific and costly development to interoperate and do rely typically on a single manufacturer or system integrator. Hence they are not fully compliant with broadcasters' requirements. ASSET is a European funded project whose main goal is to overcome the limitations of custom specific implementations of a digital system for TV content creation. These limitations are generally due to the misfit of interfaces between software layers, proprietary APIs of equipment from different vendors and the lack of a generalised middleware for multimedia content management with openly defined interfaces. Besides presenting the ASSET proposed architecture and concepts, this paper describes the prototype under development to test and demonstrate the project proposals.