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Colloquium - Zahedi

Application Performance-Driven Design and Management of Sensor Networks
University of California, Los Angeles

The challenges of scale and resource constraints in Wireless Sensor Network (WSN) designs have led to novel developments in network protocols and services with a primary focus on Quality of Service (QoS) metrics. While the value and necessity of these developments are unquestionable, with an increasing demand for high-fidelity and real-time decisions from WSNs, it remains necessary to investigate new designs with focuses on satisfying application performance requirements such as reconstruction fidelity, detection performance, and response latency.

In this talk, first, I introduce a framework that structures performance-driven designs and facilitates analysis and estimation of their delivered performance. The focus of this framework anchors around event detection and object tracking applications.

Next, I go over an example of a performance-driven design, where the analysis for tradeoffs between object tracking accuracy vs. response latency for a duty-cycled WSN is provided. Such an analysis can be used by a designer to select the right system parameters which guarantee the required tracking performance from the designed WSN.

Finally, I discuss effects of common sensor platform faults on the quality of derived decisions from WSNs and briefly present a fault detection scheme which enables WSNs to efficiently detect and identify the faulty behaviors and further manage the detection process at run-time in order to reduce the effect of those faults in the decision-making.

Sadaf Zahedi received her BS. degree in Electrical Engineering Department from Sharif University of Technology, Tehran, Iran in 2004, and the MS Degree in Electrical Engineering (Signals and Systems) from University of California, Los Angeles (UCLA) in 2006. She is currently pursuing her PhD with the Networked and Embedded Systems Laboratory (NESL) and with the Center for Embedded Networked Sensing (CENS) at UCLA. Her research interests include sensor networks, real-time data processing and performance-driven designs of the sensor network.

Hosted by Timothy Brown.
Sponsored by the Interdisciplinary Telecommunications Program.

Department of Computer Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
May 5, 2012 (14:13)