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Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides.

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Presentation on theme: "Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides."— Presentation transcript:

1 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides THOUGHTS ON WIRELESS NETWORKING Anthony Ephremides COST-NSF Workshop June 23-25, 2003

2 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides NOVEL CHALLENGES Physical layer Mobility Shared medium Reliance on portable energy LEAD TO: –Variable topology –Interference/MAC –Energy efficiency/longevity

3 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides APPROACHES Cross-layer design (no “GRAPH”) Energy efficiency at all layers Medium exploitation (multicast advantage) Application specificity

4 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides CLASSIFICATION Cellular LANs Satellite Ad hoc Sensor (sp.case)

5 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides STATUS To operate a Multi-Hop Wireless Network, we need to break the Routing/MAC/Routing/MAC….knot 802.11 (CSMA/CA) & Bluetooth are “FINE” heuristics Do not know or understand limitations and fundamentals GUPTA-KUMAR TSE-GROSSLAUSER

6 Ne X tworking ’ 03 June 23-25,2003, Chania, Crete, Greece The First COST-IST(EU)-NSF(USA) Workshop on EXCHANGES & TRENDS IN N ETWORKING Anthony Ephremides WHAT TO DO Need basic theory Need innovative ideas Need freedom from standards! Themes: - Cross-Layer Design - Energy Awareness - Medium Exploitation - Physical Layer

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