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!