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Thoughts on Sensing Systems and Workshop Overview

Thoughts on Sensing Systems and Workshop Overview. Stephen B. Wicker. The Sensor Revolution. 1990’s - DARPA/ISAT study on sensor networking technology Emphasis on bio agents 1000 lb. sensors the size of refrigerators Significant human interface… 2000+ Intel develops/takes over iMotes

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Thoughts on Sensing Systems and Workshop Overview

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  1. Thoughts on Sensing Systemsand Workshop Overview Stephen B. Wicker

  2. The Sensor Revolution • 1990’s - DARPA/ISAT study on sensor networking technology • Emphasis on bio agents • 1000 lb. sensors the size of refrigerators • Significant human interface… • 2000+ • Intel develops/takes over iMotes • NSF SENSOR program • NSF Nets NOSS program • etc…

  3. Stage 1 - Sensor Networking Technology • Driving Applications • Protecting urban infrastructure (ultra long lifetime) • Disaster response (rapid deployment) • Home environment (?) • Vision: Large numbers of tiny sensors embedded/distributed at random. • Autonomous • Self-configuring • Low-Power • Highly redundant

  4. Low-Power:Sensor Platform Technologies - SNAP • Sensor Network Asynchronous Processor • Event Driven Execution • Default state of the processor: waiting; ideal for sensor platform • No switching activity in this state • No dynamic power dissipation • Wake up triggered by event arrival • Clockless logic • Spurious signal transitions (wasted power) eliminated • Hardware only active if it is used for the computation • Prof. Rajit Manohar, ECE

  5. Self-Configuration: Mechanism Design • Motivations: efficiency and scalability • Efficiency: ability of market-based distributed control mechanisms to move complex networks toward optimal operating points. • Scalability:distributed decision-making inherent in market settings. • Interaction and decisions are local, obviating the need for a global perspective (which is both memory- and computationally-intensive). • Critical Tools: Equilibrium concepts, utility-based decision making, and bargaining. • Wicker (ECE), Tardos and Halpern (CS), Blume and Easley (Economics)

  6. Common wireless channel N Set of transmitters Set of receivers Competing for Resources

  7. Fundamental Results to date • Networks with selfish nodes have stable operating points. • Nash equilibria of the one-shot random access game have been completely characterized. • All optimal solutions are supported by a game theoretic solution. • Convergence rate of asymptotic packet arrival distribution has been characterized. • Convergence rate of asymptotic channel throughput has been characterized.

  8. Stage 2 - Research in Sensing Systems Application Driven Mission-Level Decision Making semantics Research Context Critical Variables syntax Sensed Environment Technology Driven

  9. Our Resources: Network Technology, Theory, and Science at Cornell • Cornell Expertise in Technology, Theory, and Science • Sensor Technologies • Novel Power Sources • Ultra Low-Power Sensor Platforms • Sensor-Specific MAC Technologies • Advanced Reachback Technologies • Infrastructure Integration and Protection • Mechanism Design and Self-Configuration • Information-Theoretic Networking and Coverage Models • Advanced Operating Systems • Software Tools/Reporting Mechanisms • Security and Information Assurance • Societal Impact of Ubiquitous Sensing in the Public Arena • Privacy Issues • Novel work often lies in horizontal and vertical integration - research at the seams.

  10. The Workshop • 12:30 – 12:50 Stephen Wicker – Models for Research in Sensed Systems • 12:50 – 1:10 Phoebe Sengers - Co-Interpreting Sensor Networks • 1:10 – 1:30 Lang Tong - Application Specific Sensor Networks • 1:30 – 1:50 Geri Gay - Tools for Enhancing Social Navigation in Public Spaces • 1:50 – 2:10 Kirsten Boehner - Opening the Frame of the Art Museum: Technology Between Art and Tool • 2:10 – 2:30 Tom O’Rourke - Resilience in Critical Infrastructure Networks • 2:30 – 2:50 Break (buffer time) • 2:50 – 3:10 Sergio Servetto - The Wave Field Synthesis Problem • 3:10 – 3:30 Jim Turner - Overview of sensor types for different agents    • 3:30 – 3:50 Tad Kaburaki - Lipid Bilayer Sensors (Fabrication) • 3:50 – 4:10 Mary-Rose Burnham - Lipid Bilayer Sensors (Measurements) • 4:10 – 4:30 Mike Spencer - SiC Based Betavoltaic radioisotope micro-batteries • 4:30 – 5:00 Planning session - Thoughts on proposal strategies

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