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PANEL Ubiquitous Systems Ubiquity for Everyone: What is Missing?

PANEL Ubiquitous Systems Ubiquity for Everyone: What is Missing?. Ann Gordon-Ross Department of Electrical and Computer Engineering University of Florida, Gainesville, Florida, USA Also affiliated with the NSF Center for High-Performance Reconfigurable Computing (CHREC).

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PANEL Ubiquitous Systems Ubiquity for Everyone: What is Missing?

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  1. PANEL Ubiquitous Systems Ubiquity for Everyone: What is Missing? Ann Gordon-Ross Department of Electrical and Computer Engineering University of Florida, Gainesville, Florida, USA Also affiliated with the NSF Center for High-Performance Reconfigurable Computing (CHREC)

  2. Proliferation of Wireless Sensor Networks Ambient conditions monitoring e.g. forest fire detection Security and Defense Systems Industrial Automation Health Care Space Logistics

  3. Typical Wireless Sensor Network Application managers typically non-experts e.g. agriculturist, biologist, etc. Network Application manager/designer Sensor nodes Gateway node Sensor field Sink node

  4. Challenges in Wireless Sensor Network Design Commercial off-the-shelf sensor nodes What is frequency? How does it affect lifetime? • Characteristics • Generic Design • Not Application Specific • Few Tunable Parameters Tunable Parameters Application Metrics Values Processor Voltage = 2.7 V Lifetime = 3 years Processor Frequency = 4 MHz Reliability =< 25% pkt loss Sensing Frequency = 1 sample per second Security = WEP Radio Transmission Power = -17dBM Responsiveness = < 5 seconds after detection

  5. Ubiquity in Wireless Sensor Network Design CHALLENGING!! • Lifetime = High Importance • Reliability = Medium Importance • Security = Low Importance • Responsiveness = High Importance Dynamically Optimize Tunable Parameter Values to Meet Application Metrics With Respect to the Operating Environment Conceptually Ideal • Processor Voltage = 2.7 V • Processor Frequency = 4 MHz • Sensing Frequency = 1 sample per second • Radio Transmission Power = -17 dBm

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