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Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile Networks

K. Tutschku tutschku@informatik.uni-wuerzburg.de Workshop on Peer-to-Peer Multicasting (P2PM 2007) Las Vegas, 11. Januar 2007. Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile Networks. Conflicts.

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Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile Networks

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  1. K. Tutschku tutschku@informatik.uni-wuerzburg.de Workshop on Peer-to-Peer Multicasting (P2PM 2007) Las Vegas, 11. Januar 2007. Challenges of (P2P-based) Scalable Multicast in Infrastructure-based Mobile Networks

  2. 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

  3. 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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