STUDIES FOR SINGLE-SOURCE ORIENTED MODE OF APPLICATION LEVEL MULTICAST

The aim of this paper is To perform single-source applications in hierarchical topology. By proposing an application level multicast approach, Hierarchical Topology Aware Grouping (HTAG), which exploits information about path overlap among members and topological hierarchy to construct overlay tree at different network layers. The results indicate the effectiveness of our approach in reducing duplicate packets and preserving available bandwidth, with reasonable delays increase. Simulations of both our protocol and the TAG over generated hierarchical topologies testify that using application level multicast can partly pad the lack of IP multicast deployment.