GAYATHRI CHANDRASEKARAN
http://www.winlab.rutgers.edu/~chandrga
Department of Computer Science
Rutgers University
chandrga@cs.rutgers.edu
6 Edith Place
Somerset, NJ 08873
(616) 635 8303
OBJECTIVE
To explore challenging research opportunities in the field of Wireless Networking and/or Wireless System design.
RESEARCH INTERESTS
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Pervasive Computing
Experimental evaluation of network protocols
Location based services and Localization
EDUCATION
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Rutgers University
PhD Student, Computer Science (GPA: 3.85/4.0)
(Expected: December 2010)
New Brunswick, NJ
Sep 2006 – Current
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Rutgers University
M.S, Computer Science (GPA: 3.85/4.0)
New Brunswick, NJ
Sep 2006 – Jan 2009
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The Ohio State University
Graduate Student, Computer Science (GPA: 3.7/4.0)
Columbus, OH
Sep 2004 – Jun 2006
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Birla Institute of Technology and Science(B.I.T.S), Pilani
MSc(Tech) Information Systems (GPA: 9.5/10)
Rajasthan, India
Aug 2000 – Jun 2004
AWARDS AND HONORS
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Teaching Assistantship at Rutgers University (Sep 2009 – Present)
Graduate Research Assistantship at WINLAB, Rutgers University (Sep 2006 – May 2009)
Teaching Assistantship at The Ohio State University (Sep 2005 to Jun 2006)
University Fellowship at The Ohio State University (Sep 2004 to Aug 2005)
JNCASR Summer Research Fellowship (Selected among the top 120 students by Indian Institute of Science)
(May 2003 – Aug 2003)
Merit Scholarship at Birla Institute of technology and science for maintaining a GPA of 10/10 (Year 2000 and
2001)
Certificate of Merit for topping chemistry in AISSCE (All India Senior Secondary Certificate Examination)
(Year 2000)
RESEARCH EXPERIENCE
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AT&T Research Labs
Summer Intern
Vehicular Speed Estimation using GSM signal strength
o Analysis of RSS traces from GSM enabled phones in vehicles.
Florham Park, NJ
May 2009-Aug 2009
Estimation of vehicular speed using signal matching techniques that exploit the stability of the RSS
over time.
Wireless Information Network Laboratory (WINLAB), Rutgers University
New Brunswick, NJ
Research Assistant
Sep 2006 – Present
Empirical Evaluation of Lower Bounds of Localization
o Extensive data collection in a high density ORBIT Testbed with 400 802.11b receivers.
o Performance evaluation of the existing RSS based localization techniques and understanding the
factors limiting the localization accuracy.
o Comparison with the proposed theoretical lower bounds.
RIDE: Reliable Identity-spoof Detection and Elimination
o Detection of Spoofing attacks (Sybil and Masquerading) based on the Tamper proof Metrics – The MAC
Sequence number and the Location of the transmitter
o Implementation of the Light Weight Spoof Detector in C.
o Localization of the suspicious clients to arrive at an intelligent decision using the GRAIL Localization
system deployed at WINLAB.
Understanding Similarities in RSSI for Co-Located Wireless Transmitters
o Identifying the co-located wireless transmitters by analyzing at the RSSI traces collected at 6 different
receivers
o Calculating the correlation co-efficient of the observed RSSI from mobile transmitters attached to the
same device and understanding the effect of mobility on co-locating objects in indoor environments.
Vehicular Tracking with intermittent 802.11 WLAN connectivity
o Implementation of a visualization tool over Google Earth for tracking the path of a mobile node fixed
in a vehicle
o Monitoring and plotting the speed distribution of the mobile node to predict the traffic in the roads.
Nokia Research Centre(NRC)
Palo Alto, CA
Research Intern
Jun 2007- Sep 2007
Virtual Posting: A Privacy Preserving Scalable Infrastructure for Mobile Advertising
o Implementation of a Location Based Service called Virtual Posting for Mobile Advertising
o Implementation of a Privacy preserving layer.
o Caching Location based Data at wireless routers running Openwrt to improve scalability and enforce
privacy.
o Porting the application to the Mobile Device (Nokia N95) for the evaluation of the system.
The Ohio State University
Columbus, OH
Ohio State University Fellowship
Sep 2004 - Aug 2005
Optimizing Broadcast Load in Mesh Networks using Dual Association
o Evaluation of the broadcast load in the Mesh Network built using the kansei testbed consisting of
180 Stargate nodes http://ceti.cse.ohio-state.edu/kansei/
o Implementation of time synchronization and Dual Association on Stargates
Indian Institute of Science
Bangalore, India
JNCASR Summer Research Fellowship
May 2003 - July 2003
Analysis of Public key cryptosystems – PGP
o Verification of the Public Key Cryptosystem - Pretty Good Privacy (PGP) software with a view to
figuring out the side-channels and non-obvious backdoors
o Usage of Cryptographic tool – CCRYPTO developed at IISc for the validation of PGP Protocol and
making enhancements to the tool
o
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JOURNAL PUBLICATIONS
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Gayathri Chandrasekaran, Mesut Ergin, Marco Gruteser, Rich Martin, Jie Yang, Yingying Chen DECODE :
Exploiting Shadow Fading to Detect Co-Moving Wireless Devices IEEE Transactions on Mobile Computing, Dec
2009, vol. 8 no. 12 (Extended Version of Mass 2008 Paper)
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Ai Chen, Gayathri Chandrasekaran, Dongwook Lee, and Prasun Sinha High Throughput MAC Layer
Multicasting over Time-Varying Channels Elsevier Computer Communications (COMCOM) , Volume 32,
Number 1, pp 94-104, Jan. 2009 (Extended Version of MASS 2006 paper)
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Dongwook Lee, Gayathri Chandrasekaran, Mukundan Sridharan and Prasun Sinha “Association Management
for Data Dissemination over Wireless Mesh Networks” Elsevier Computer Networks, 2007
CONFERENCE PUBLICATIONS
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Gayathri Chandrasekaran, John-Austen Deymious, Vinod Ganapathy, Wade Trappe, Marco Gruteser
“Detecting Identity Spoofs in 802.11e Wireless Networks” IEEE GLOBECOM, December 2009 [AR: 34%]
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Gayathri Chandrasekaran, Mesut Ergin, Jie Yang, Song Liu, Yingying Chen, Marco Gruteser, Rich Martin
“Empirical Evaluation of the Limits on Localization Using Signal Strength: Beyond Cramér-Rao Bounds”, IEEE
SECON 2009, June 2009 [AR: 19%]
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Gayathri Chandrasekaran, Mesut Ergin, Marco Gruteser, Rich Martin, Jie Yang, Yingying Chen “DECODE :
Detecting Co-Moving Wireless Devices” IEEE MASS 2008 (short paper) [AR: 20%]
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Gayathri Chandrasekaran, Mesut Ergin, Marco Gruteser, Rich Martin “Bootstrapping a Location Service
Through Geocoded Postal Addresses” 3rd Intl. Symposium on Location- and Context-Awareness (LoCA, held
with UbiComp), Germany Sep. 2007.
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Ai Chen, Gayathri Chandrasekaran, Dongwook Lee, and Prasun Sinha "HIMAC: High Throughput MAC Layer
Multicasting in Wireless Networks" in Proceedings of the IEEE MASS, Vancouver, Canada Oct. 2006.
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Dongwook Lee, Gayathri Chandrasekaran, and Prasun Sinha "Optimizing Broadcast Load in Mesh Networks
using Dual Association" Invited Paper, In Proc. of WiMESH (IEEE Workshop on Wireless Mesh Networks),
Santa Clara Sep 26, 2005
TEACHING EXPERIENCE
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Teaching Assistant for the course Computer Architecture
Jan 2010 – May 2010
Graded exam & homework problems, conducted recitation/tutorial classes and held regular office hours
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Teaching Assistant for the course Software Methodology,
Sep 2009 – Dec 2009
Graded exam & homework problems and held regular office hours
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Teaching Assistant for the course Computer Assisted Problem Solving for Business,
Sep 2005 - Jun 2000
Graded exam & homework problems, conducted recitation and lab sessions and held regular office hours
SKILLS
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Languages:
Device drivers:
Simulators:
Network Monitoring Tools:
C/C++, LATEX, Java, J2EE, J2ME, PHP, Perl, Shell Scripting,
MadWiFi (Atheros-chipset) and Hostap (Prism-chipset) on Linux
Network simulator (NS-2) and MATLAB
Tcpdump, Ethereal