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National Science Foundation Engineering Research Center
Bhaskar Krishnamachari Associate Professor and Ming Hsieh Faculty Fellow Depts. of Electrical Engineering, Computer Science
University of Southern California Los Angeles, CA 900890781
bkrishna@usc.edu http://anrg.usc.edu
National Science Foundation Engineering Research Center
The Autonomous Networks Research Group
National Science Foundation Engineering Research Center
3
ANRG Overview
• Research Focus: Design of Next Generation Wireless Networks – Wireless Sensor Networks – Vehicular Networks – Mobile Sensing – Green Cellular Networks – Underwater Networks
• Highlights – More than 200 articles including at Mobicom, Sensys, MobiHoc,
INFOCOM, IPSN, STOC and various IEEE/ACM transactions. – More than 7000 citations (source: Google Scholar) – Awards: Best paper prizes at MobiCom 2010, IPSN 2010, MSWiM
2006, IPSN 2004; ASEE Terman Award 2010 NSF CAREER Award 2004
– Funded by NSF, ARL, GM, IMSC
National Science Foundation Engineering Research Center
Battery Powered
Wi-Fi 802.11x data transmitter
Remote Configuration
Reliable & Robust
An iCampus.USC Project: Occupancy and Location Sensing
National Science Foundation Engineering Research Center
Network Architecture
Autonomous Networks Research Group
Sensor node
Gateway for 802.15.4 & 802.11
How it works
National Science Foundation Engineering Research Center
PC-TB12N-W (People Counter) by SenSource
Autonomous Networks Research Group
Features • Break-Infrared beam system • Wi-Fi 802.11b transmitter • Battery-powered ( Avg. 2yr of battery life
time) • 6-digit LCD display • Easily configure sensor settings through
USB Weakness • No timestamp • Non-directional sensor • Doesn’t work well with USC Wireless • Unreliable due to UDP • Limited installation position • Expensive ($650 w/o software license)
National Science Foundation Engineering Research Center
People & Vehicle Counter by ANRG
Autonomous Networks Research Group
Features
• Directional sensor (Thermal Array sensor) • Low-power Wi-Fi 802.11x & 802.15.4 transmitter • Battery-powered • Reliable & Robust (TCP/IP) • Remote configuration • Applicable to both of people & vehicle counter • Price will be less than $400 • Data w/ timestamp
National Science Foundation Engineering Research Center
Autonomous Networks Research Group
A single mote can control several sensors
People & Vehicle Counter by ANRG
National Science Foundation Engineering Research Center
Prototype and Results
National Science Foundation Engineering Research Center
Towards a Campus-Wide Localization Service
Autonomous Networks Research Group
Using Wi-Fi information
Indoor & Outdoor
More accurate than GPS
Support diverse OSs
National Science Foundation Engineering Research Center
WSN-based Indoor Localization
Ongoing collaboration with Prof. Burcin Becerik-Gerber to apply this to building energy management.
National Science Foundation Engineering Research Center
Thanks!
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