Ph.D., Computer Science, UCLA, 2002
B.Tech., Computer Science, IIT Madras, 1997

NSF CAREER Award (2008)
Senior Member, ACM (2014)

Office FAB 120-24 (Campus Map, Directions)
Email nbulusu AT
Phone (503) 725-2404
Fax (503) 725-3211

Follow me on ResearchGate

Mailing Address

Department of Computer Science
Maseeh College of Engineering and Computer Science
P.O. Box 751
Portland State University
Portland, OR 97207-0751


Biographical Sketch

2007 University Profile


Fall 2017: CS 494/594 - Internetworking Protocols (Piazza sign up)

Winter 2018: CS 410/510 - Markets, Crowds and the Internet





Editor, ACM Transactions On Sensor Networks

Past Professional Activities


My broad research interests lie in the areas of networking, data analytics, security and information privacy.

With my collaborators, I have worked on developing mobile crowdsourcing platforms for applications spanning from environmental sensing and urban planning (e.g. noise pollution mapping), commerce (e.g. monitoring consumer price dispersion) and personalized healthcare and wellness.

Because open systems based on crowdsourcing and mobile technologies are susceptible to both data tampering and compromise of user privacy, a particular focus of my work is on leveraging techniques such as trusted computing and homomorphic encryption to safeguard data integrity and user privacy. For more details, please see our HotSec '09 position paper, this SecureComm '11 paper and this ACM TECS journal paper.

My work has also focused on advanced data analytics for wireless and sensor networks, applied to domains as diverse as tracking freshwater plumes in the Columbia River Estuary, monitoring invasive cane-toad populations in Australia, anticipating client movements and forecasting client demand in retail environments and airports.

My current and past contributions encompass the areas of network localization, 3D camera network localization, network optimization, data dissemination protocols, distributed data compression, medium access control, data modeling, and code consistency maintenance protocols (e.g. DHV, available as part of TinyOS). For more details, please see papers and talks above.

In the Public Eye

In collaboration with the Oregon Museum of Science and Industry, my group created an interactive educational demonstration on sensor networks for elementary school students, which you can read about here.

What the Media Says

Computing Researchers Take to the Hill: CRA Hosts Successful Congressional Fall Fly-In Event, Computing Research News, November 2013.

EarPhone: Crowd-sourced Noise Pollution Mapping

Monitoring Cane Toads

MCECS Professor earns NSF CAREER award, Feb 19th, 2008.

Sensor Networks Education

Grace Hopper 2006 Conference Report, Usenix ;login magazine, February 2007, reviews a talk I gave on sensor networks.

Ten OGI faculty move to PSU, OGI Announcement, October 2004.