Abstract
In this paper, we present a de-centralized protocol to construct a Degree-Bounded Minimum Diameter Tree (DBMDT) as an overlay network. The main objective of this work is to incorporate instable and less powerful hosts such as mobile nodes in overlay multicast trees. The scheme proposed here organizes those nodes in such a way that their low performance (low bandwidth for instance) does not largely affect the entire tree. We derived some basic ideas from our previously proposed protocol MODE and enhanced them to well support the new environment. We have shown from the experimental results that this feature is very effective to keep the diameter as small as possible under the existence of mobile nodes, compared with MODE.
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