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Colloquium - Zhang

Building Robust Mobile Ad-Hoc Networks
Department of Computer Sciences, University of Texas at Austin
2/28/2002
3:30pm-4:30pm

In this talk, I will discuss two issues in improving the robustness of mobile ad-hoc networks: how to improve transport protocol performance given the frequent and rapid topology changes, and how to protect the network when such changes open new vulnerabilities.

While TCP is designed to adapt to a wide range of network characteristics and traffic conditions, its performance still suffers under ad-hoc networks when mobility induces sudden and drastic changes in route and path characteristics. We have developed a set of techniques to address this problem, including explicit bandwidth notification, and out-of-order detection and response.

Mobility also introduces security hazards in a mobile ad-hoc network. We have aimed to apply intrusion detection techniques as a second wall of defense (after failure of traditional prevention mechanisms), and have evaluated a key mechanism, anomaly detection, for ad-hoc routing protocols through simulation study.

Hosted by Alexander Wolf.
Refreshments will be served immediately following the talk in ECOT 831.

Department of Computer Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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