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J.J. Garcia-Luna-Aceves (PI) Hamid Sadjadpour Katia Obraczka Muriel Medard Andrea Goldsmith

J.J. Garcia-Luna-Aceves (PI) Hamid Sadjadpour Katia Obraczka Muriel Medard Andrea Goldsmith Pravin Varaiya Rajive Bagrodia Mario Gerla Jennifer Hou Nitin Vaidya Tony Ephremides. UCSC: MIT: Stanford University: UC Berkeley: UCLA: UIUC: University of Maryland:.

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J.J. Garcia-Luna-Aceves (PI) Hamid Sadjadpour Katia Obraczka Muriel Medard Andrea Goldsmith

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  1. J.J. Garcia-Luna-Aceves (PI) Hamid Sadjadpour Katia Obraczka Muriel Medard Andrea Goldsmith Pravin Varaiya Rajive Bagrodia Mario Gerla Jennifer Hou Nitin Vaidya Tony Ephremides UCSC: MIT: Stanford University: UC Berkeley: UCLA: UIUC: University of Maryland: http://www.soe.ucsc.edu/research/ccrg/DAWN

  2. Agenda • 7:30 Registration and breakfast • 8:00 Welcome and introductions • 8:10 ARO Remarks (Bob Ulman, ARO) • 8:40 DAWN overview (J.J. Garcia-Luna-Aceves, UCSC) • 9:00 Cross-Layer issues and fundamental results on performance (Anthony Ephremides, Maryland) • 9:30 Cooperation and cross-layer design in wireless networks (Andrea Goldsmith, Stanford) • 10:00Coffee break • 10:15 Analysis of link and path dynamics in MANETs (Hamid Sadjadpour, UCSC) • 10:45 Modeling and control of information flow patterns (Pravin Varaiya, UC Berkeley) • 11:15 Using multiple channels and spatial backoff to improve wireless network performance (Nitin Vaidya, UIUC) • 11:45 Power, carrier sense threshold, and rate control (Jennifer Hou, UIUC) • 12:15 Scaling issues for multi-paradigm network modeling (Rajive Bagrodia, UCLA) • 12:45Lunch break (start again at 1:45 pm)

  3. Agenda (2) • 1:45 Robust wireless multicast using network coding (Mario Gerla, UCLA) • 2:15 Network coding for multicating and unicasting in MANETs (Muriel Medard, MIT) • 2:45Coffee break • 3:00 Energy efficiency in MANETs (Katia Obraczka, UCSC) • 3:30 Towards a new routing framework for MANETs (J.J. Garcia-Luna-Aceves, UCSC) • 4:00 Conclusions (J.J. Garcia-Luna-Aceves, UCSC) • 4:15Government caucus • Feedback to DAWN team

  4. Motivation • Wireless networks in the battlefield are highly dynamic, and they are very different than the Internet and wireless LANs. • However, • Network control is based on algorithms designed for graphs with point-to-point links in which interference is confined to each link. • No good understanding of the effects of the physical layer on protocol stack. • No good handle on self-configuring and robust protocols. • Mobility and interference are poorly understood. • Wireless spectrum is utilized poorly, based on fixed allocation of resources. • Protocol layers have been designed in isolation.

  5. A “Science of Networking” fundamental limits logic analytical models Lower-bound Upper-bound simulations APPLICATION collaborative applications… TRANSPORT end-to-end transport protocols… NETWORK routing-structure maintenance opportunistic packet forwarding interconnection LINK synchronization transmission scheduling neighborhood discovery PHYSICAL Antennas, radios protocols and architectures Technical Approach What is the performance of specific protocols with a specific PHY? What is the best that we can possibly do? Is the protocol correct?

  6. IMPACT RESULTS Training and placement of students analytical models Fundamental limits Models, protocols, and code used by other groups Analytical modeling realistic simulations Models and protocols from other groups Large-scale, high-fidelity simulations Better MANETs for DoD and commercial applications • Modular protocol stack • Cross-layer optimized, energy • efficient, fault-tolerant, • self-configuring reports, papers, software in web page, input to standards Technical Approach RESEARCH

  7. Project Structure DAWN JJ Garcia-Luna-Aceves (PI) Task 1: A. Ephremides (Task Leader) JJ Garcia-Luna-Aceves A. Goldsmith M. Medard H. Sadjadpour P. Varaiya Task 2: A. Goldsmith (Task Leader) R. Bagrodia M. Gerla M. Medard K. Obraczka H. Sadjadpour N. Vaidya P. Varaiya Task 3: JJ Garcia-Luna-Aceves (Task Leader) M. Gerla J. Hou K. Obraczka N. Vaidya J. Hou Task 4: K. Obraczka (Task Leader) JJ Garcia-Luna-Aceves M. Gerla A. Goldsmith J. Hou M. Medard P. Varaiya Task 5: J. Hou (Task Leader) R. Bagrodia K. Obraczka Task 6: P. Varaiya (Task Leader) A. Ephremides

  8. Summary of Scientific Progress • 19 journal papers published or accepted for publication. • ACM WINET, ACM/IEEE Trans. Networking, IEEE Trans. Comm., IEEE Trans. Wireless Comm., ACM Trans. Sensor Networks, Computer Communications, Ad Hoc Networks • 35 peer-reviewed papers in conference proceedings • ACM Mobicom, ACM Mobihoc, ACM SIGCOMM, IEEE Infocom, IEEE WiOpt, IEEE MASS, IEEE Qshine, IEEE ICC, IEEE IPSN • One Best Paper Award (IEEE MASS 2005) • 8 Invited papers • 12 manuscripts • 13 Ph.D. theses completed, at least 2 graduates with faculty positions • Active and growing intercampus collaboration (e.g., UCLA-MIT, UCLA-UCSC, Stanford-MIT)

  9. Summary of Scientific Progress (2) • More accurate treatments of the effects of the physical layer in the protocol stack • First analytical models that accurately reflect the impact of node mobility in links and paths • New approaches on how MAI should be treated • New modeling tools for the characterization of energy consumption in MANETs • New performance trade-offs involving node complexity, node mobility, packet length, channel utilization, and delay. • First results on network coding applied to unicasting and multicasting in MANETs • The first algorithm for on-demand routing that operates solely with source-originated sequence numbers • New approaches to information dissemination • New optimization techniques for large-scale simulations

  10. Agenda • 7:30 Registration and breakfast • 8:00 Welcome and introductions • 8:10 ARO Remarks (Bob Ulman, ARO) • 8:40 DAWN overview (J.J. Garcia-Luna-Aceves, UCSC) • 9:00 Cross-Layer issues and fundamental results on performance (Anthony Ephremides, Maryland) • 9:30 Cross-layer interaction, robustness, and cooperative communication (Andrea Goldsmith, Stanford) • 10:00Coffee break • 10:15 Analysis of link and path dynamics in MANETs (Hamid Sadjadpour, UCSC) • 10:45 Modeling and control of information flow patterns (Pravin Varaiya, UC Berkeley) • 11:15 Using multiple channels and spatial backoff to improve wireless network performance (Nitin Vaidya, UIUC) • 11:45 Power, carrier sense threshold, and rate control (Jennifer Hou, UIUC) • 12:15 Scaling issues for multi-paradigm network modeling (Rajive Bagrodia, UCLA) • 12:45Lunch break (start again at 1:45 pm)

  11. Agenda (2) • 1:45 Robust wireless multicast using network coding (Mario Gerla, UCLA) • 2:15 Network coding for multicating and unicasting in MANETs (Muriel Medard, MIT) • 2:45Coffee break • 3:00 Energy efficiency, robustness and mobility models in MANETs (Katia Obraczka, UCSC) • 3:30 Towards a new routing framework for MANETs (J.J. Garcia-Luna-Aceves, UCSC) • 4:00 Conclusions (J.J. Garcia-Luna-Aceves, UCSC) • 4:15Government caucus • Feedback to DAWN team

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