Heterogeneous Multicast in Heterogeneous QoS Networks
Key: SZKS01-1
Author: Jens Schmitt, Frank Zdarsky, Martin Karsten, Ralf Steinmetz
Date: October 2001
Kind: In proceedings
Publisher: IEEE
Book title: Proceedings of the 9th IEEE International Conference on Networks (ICON'01), Bangkok, Thailand
Abstract: Supporting heterogeneous receivers in a multicast group is of particular importance in large internetworks as, e.g., the Internet due to the large diversity of end-system and network access capabilities. Furthermore, it is the nature of large-scale internetworks which makes homogeneous Quality of Service (QoS) support unrealistic at least for the middle-term future. Therefore, we investigate in this paper the implications of differing multicast models in heterogeneous QoS networks. In particular, we approach the problem an edge devices faces when mapping a heterogeneous QoS multicast from an overlaid QoS system onto a system providing only a homogeneous QoS multicast. The generic solution technique we propose for this problem is called foresting. The idea of foresting is to support a heterogeneous multicast by a forest of homogeneous multicast trees. We develop different foresting algorithms and compare them by extensive simulations.
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