[Colloq] Talk - TOMORROW, NOVEMBER 17, Radha Poovendran

[Rachel Kalweit]

College of Computer and Information Science Colloquium

presents
Radha Poovendran
University of Washington

who will speak on:
SeRLoc: Secure Range-Independent Localization for Wireless Sensor Networks


Wednesday, November 17, 2004
108 West Village H
12:00pm
Northeastern University

ABSTRACT
In many applications of wireless sensor networks (WSN), sensors are 
deployed un-tethered in hostile environments. For location aware WSN 
applications, it is essential to ensure that sensors can determine their 
location, even in the presence of malicious adversaries. In this talk we 
address the problem of enabling sensors of WSN to determine their 
location in an un-trusted environment. Since localization schemes based 
on distance estimation are expensive for the resource-constrained 
sensors, we propose a range-independent localization algorithm called 
SeRLoc.  SeRLoc is distributed algorithm and does not require any 
communication among sensors. In addition, we show that SeRLoc is robust 
against severe WSN attacks, such as the wormhole attack, the Sybil 
attack and compromised sensors. We present a threat analysis and 
comparison of the performance of SeRLoc with state-of-the-art 
range-independent localization schemes. We also present a 
high-resolution extension to SeRLoc provide a number of methods for 
robust estimation of location. We will also discuss some of the hard 
problems that remain open.

Bio:
Radha Poovendran is an assistant professor at the Electrical Engineering 
Department of the University of Washington at Seattle. He received his 
PhD. in Electrical Engineering from the University of Maryland, College 
Park in 1999. His research interests are in the areas of applied 
cryptography for multiuser environment, networking, and Information 
Theory. He is a recipient of a number of awards from NSA, NSF, ARO and 
ONR for his research contributions in the areas of wired and wireless 
security.  He is also a recipient of a number of awards for teaching, 
advising and good citizenship within the university community. He is a 
co-program chair of the ACM Wireless Security (WiSe) 2005.