Chen-Nee Chuah
Department of Electrical and Computer Engineering
Research: RUBINET
The research efforts of the RUBINET Group focus on designing new infrastructures, protocols, and techniques that improve robustness, availability, security, and efficiency of wide area networks. Our approach is driven by real network and traffic measurements from operational (wired and wireless) networks. As the Internet becomes an essential part of our everyday life, it has grown to a complex distributed networked system that is hard to characterize. We strive to develop foundations for measuring and validating the end-to-end as well as system-wide network behavior, taking into account the dynamic interactions across protocol layers (e.g., IP-routing and application-layer) and between network components (e.g., sets of routers with different policy configurations, packet filters, and firewalls). We also strive to develop traffic measurement solutions that are adaptive, versatile, programmable, modular, and scalable to increasing line rates, which can capture accurate traffic data for wide range of applications (from traffic engineering to anomaly detection) while scaling with high link speeds.
In the context of wireless networks, we are interested in finding new and creative ways to opportunistically utilize all communications channels that are available to consumer-grade mobile devices (e.g., through multiple wireless interfaces) to enrich end-user experience.
Example projects include:
- “RoSE: Robust, Secure & Efficient Wide-Area Routing” – where we perform detailed characterization of intra-domain routing failures and BGP dynamics, design failure-resilient routing and fine-grained traffic engineering techniques, and model interactions between overlay- and IP-layer routing
- “SaND: Sampling the Internet for Effective Network Anomaly Detection” – we quantify how existing sampling techniques distort traffic features/statistics that are critical for anomaly detection (e.g., port scan detection) and investigates new measurement techniques that provide good trade-offs between scalability, efficiency, and accuracy.
- “FIREMAN: Modeling, Validation, and Optimization of Distributed Firewalls” - we propose to develop a unified framework for policy-checking, optimization, and auto-reconfiguration of distributed firewalls to avoid misconfigurations that may lead to security loop holes or violate intended security policy.
- “CPR: Cooperative Peer-to-Peer Repair” – we propose to leverage IEEE 802.11-based peer-to-peer connections to perform out-of-band packet repair for 3G multimedia broadcasting.
- “VGrid: Vehicular Grid Computing” - The goal is to evolve intelligent transportation system (ITS) from a centralized to a distributed approach, in which vehicles can cooperatively exchange messages through vehicular ad hoc networks and solve traffic-flow control problems autonomously.
Webpage: http://www.ece.ucdavis.edu/profiles/chuah.html
Email: chuah@ece.ucdavis.edu