Presentation on theme: "University of Würzburg Department of Distributed Systems Prof. Dr. P. Tran-Gia Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile."— Presentation transcript:
University of Würzburg Department of Distributed Systems Prof. Dr. P. Tran-Gia Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile Networks K. Tutschku firstname.lastname@example.org Workshop on Peer-to-Peer Multicasting (P2PM 2007) Las Vegas, 11. Januar 2007.
University of Würzburg K. Tutschku Conflicts Radio capacity is limited vs. nodes/peers assume almost no restriction overload Radio links are asymmetrical high heterogeneity of nodes/peers Device mobility and short on-lines high churn rate Hierarchical architecture vs. dynamic overlays topology might not match Infrastructure is asset resource management by operators needed
University of Würzburg K. Tutschku Solutions? What architecture is needed? Centralized? Decentralized? Hybrid? What about self-organization? Tuning parameter for degree of decentralization? Multiple objectives? How to address mobility? Direct routing (e.g. ad hoc routing protocols) or indirect routing (e.g. MobileIP)?
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