A Scalable Multicast Protocol with QoS Guaranties

Abstract

Abstract:The technological advances in communication networks and computers are largely contributed to the developments of multimedia applications such as the videoconference. These applications require an efficient management of the Quality of Service (QoS) and consist of a great number of participants. In order to support such applications, we propose a hierarchical communication architecture and multicast protocols allowing scalability. This architecture allows to guarantee QoS requirements. In fact, it allows to reduce efficiently the connection number and the communication delays. We use simulation to analyze and compare the performances of the proposed multicast protocols to the direct architecture. Simulation results confirm our purposes that are the reduction of the network charge and the average delay.

Multicast Tree Construction with QoS Guaranties

“…The main idea is to combine a hierarchic tree construction with efficient multicast grouping concepts. Firstly, like [9], we decompose the multicast group into local groups based on delay constraint and user's station capacity. This allows us to have several groups with a reduced intra group delays.…”