Colloquium Talk: Oct 27
Thursday, October 27, 2011
Prof. Ali Abedi, UMaine Dept. of Electrical and Computer Engineering.
“Smart Battery-Free Wireless Sensing”
3:30 pm – 4:30 pm, 100 Neville Hall.
Battery-free wireless sensors developed at the University of Maine under a cooperative agreement with NASA enable a myriad of applications ranging from structural health monitoring to biomedical and space explorations to name a few. Embedding these sensors in structures without the need for changing batteries, their rugged design to withstand harsh environments, and coded communication with multiple access features makes this new technology a desirable candidate for a variety of aerospace and civil infrastructure monitoring applications. This talk presents mathematical theories behind sensor design, communication schemes, and multi tier networking strategies developed to deliver a reliable wireless sensor system.
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This is a large scale (42 ft diameter torus) inflatable lunar habitat structure that is built by NASA and instrumented by UMaine Wireless Sensors to make a unique test-bed for technology demonstration. Various aspects of this system including distributed sensing and coding, throughput optimization, channel estimation error analysis, signal detection in presence of interference, two tiered networking, turbo coding and decoding in distributed sensor networks, cooperative relaying methods, and impact localization are presented in this talk. |