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The Importance of Being Earnest *

The Importance of Being Earnest *. Nitin Vaidya Illinois Center for Wireless Systems University of Illinois at Urbana-Champaign. NSF Workshop, Reston, Virginia, August 27, 2007 * With apologies to Oscar Wilde. Session Agenda. Current status : where we are now

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The Importance of Being Earnest *

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  1. The Importance of Being Earnest* Nitin Vaidya Illinois Center for Wireless Systems University of Illinois at Urbana-Champaign NSF Workshop, Reston, Virginia, August 27, 2007 * With apologies to Oscar Wilde

  2. Session Agenda • Current status: where we are now • Future expectations on wireless networking and research challenges • Desiredtechnology advances/breakthroughfrom the physical layer • Newadvances needed fromtheoreticalperspective

  3. Likely Outcomes • More funding • More theory • More practice • More cross-layer research • More targeted research programs More of everything

  4. Likely Outcomes • More funding • More theory • More practice • More cross-layer research • More targeted research programs More of everything

  5. C C f(PC) C PD D D C1 B1 PC B B B B2 C0 PB C2 B0 A A P A The Vanishing Link • Diversity muddles the notion of a link Spatial Cooperation Channel [2005]

  6. Layers All The Way Down Where does Phy/Link layer end ? What should or shouldn’t it do ?

  7. The Way Forward • Clearly, more attention to phy / theory desirable • “Cross-Layer” protocols… smarter everything (antennas, radios, protocols, people)

  8. capacity User Applications Multi-channel protocol channels Capacity bounds Insights on protocol design Fixed D IP Stack OS improvements Software architecture Net-X testbed F B ARP E Switchable A Channel Abstraction Module C Interface Device Driver Interface Device Driver Linux CSL Net-XMulti-Channel MeshTheory to Practice

  9. The Way Forward • Clearly, more attention to phy / theory desirable • “Cross-Layer” protocols… smarter everything (antennas, radios, protocols, people) If we have known this for years, why do protocols lag so far behind ?

  10. What Do We Really Lack ? • Funding ? • Manpower ? • Theory ? Probably none of the above

  11. What Do We Really Lack ?

  12. What Do We Really Lack ? Meaningful contact between • Practice • Networking Theory Comm

  13. One-Point Agenda Four

  14. 1. Educate BetterOurselves & Next Generation • Reduce the unknownunknowns • Increase phy content in CS/CE networking courses • Awareness of phy necessary to ask better questions • Phy community should help • Educate phy students about higher layer issues

  15. 2. Fewer Research Programs • Resist temptation to create new networking programs • Partitioning of resources creates false demand • Remove existing partitionsPossible to encourage research without these • Examples: NOSS, FIND? • Encourage projects with PIs spanning different communities (phy-networks) • Actively monitor/encourage real cooperation

  16. 3. Fewer “Better” Conferences • Increase venues that encourage diversecommunity interactions(phy-networking , theory-applied) • More Workshops, fewer “selective” conferences • Co-located conferences • Tutorials • Eliminate most (wireless) networking conferences • Emulate Info Theory model ?

  17. 4. Greater Industry/User Feedback • What are the industry-perceived long-term challenges ? • What do they need from us ? • Invite them to these workshops! • Not everything needs to be dictated by industry, but practical insights can benefit academic research • Problem formulations constrained by reality

  18. Summary • Wireless networking is non-trivial • Better-trained people key to better solutions • Enable cross-layer researchand eliminate artificial boundaries,politics notwithstanding Be earnest about the goals ! We don’t want to be discussing this again in 2 years …

  19. Thanks! nhv@uiuc.edu

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