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Fourth IEEE International Symposium on Network Computing and Applications
Hopcount in Application Layer Multicast Schemes
Cambridge, Massachusetts
July 27-July 29
ISBN: 0-7695-2326-9
Milena Janic, Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science P.O. Box GA Delft, The Netherlands
Novi Ineke, Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science P.O. Box GA Delft, The Netherlands
Cempaka Wangi, Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science P.O. Box GA Delft, The Netherlands
Xiaoming Zhou, Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science P.O. Box GA Delft, The Netherlands
Piet Van Mieghem, Delft University of Technology Faculty of Electrical Engineering, Mathematics and Computer Science P.O. Box GA Delft, The Netherlands

Application Layer (AL) multicast emerged as a response to a slow deployment of IP multicast. However, the gain of AL multicast over unicast is questionable. Here, we investigate the efficiency of the two prominent protocols, MCAN and Scribe, in terms of the number of hops. We compare the efficiency of these algorithms to the efficiency of unicast and IP multicast via extensive simulations, as well as via measurements on the PlanetLab network. We introduce modifications to the MCAN algorithm that lead to a reduction in the hopcount. Finally, we demonstrate that the topology unawareness under certain conditions can make these schemes less efficient than unicast.

Citation:
Milena Janic, Novi Ineke, Cempaka Wangi, Xiaoming Zhou, Piet Van Mieghem, "Hopcount in Application Layer Multicast Schemes," nca, pp.197-204, Fourth IEEE International Symposium on Network Computing and Applications, 2005
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