RTCL Networking Group

Group overview

Networking group led by prof. Kang G. Shin has been exploring cutting-edge newtork technolgoies, including wired Internet, wireless sensor networks, wireless mesh and mobile networks, and cognitive radio networks. This group currently consists of 10 excellent graduate students (all in Ph.D track) and 2 postdoctoral research fellows, and holds regular group meeting every week. Through technical presentations and paper reading in group meetings, group members actively interact with each other and expose themselves to various state-of-art areas in networking research.

Current Projects

Cognitive Radio Networks

• MAC-layer Spectrum Sensing Algorithms and Mechanisms
• Context-Aware Wireless Spectrum Agility (CASA)
• Opportunistic Bandwidth Sharing with Multiple Input Multiple Output (MIMO) systems
• Exploiting Multi-Channel Diversity for Throughput Maximization

Wireless Mesh and Mobile Networks

• Autonomous Wireless Systems Using Mobile Robots
• Wireless Link-Quality Measurement Framework
• Improving TCP performance with multi-homed mobile hosts
• Handheld Router in collaboration with HP Labs

Wireless Sensor Networks

• Opportunistic Data Aggregation in Wireless Sensor Networks
• Location Service for a Hybrid Network of Stationary Sensors and Mobile Actors
• Service Model for Integration of reaL-time Embedded systems

Internet QoS and Routing

Internet QoS is indispensable to various types of real-time applications such as multimedia over IP as well as embedded applications like factories and homes. In these projects, we develop and evaluate various protocols that guarantee or provision such QoS as end-to-end packet delays and jitter bounds, packet loss rate, and bandwidth.

• Analysis of BGP Routing Changes
• Differentiated BGP Update Processing
• Performance of Traffic Aggregates under Guaranteed-Rate Scheduling Algorithms

Group Members

Faculty

• Kang G. Shin

Current Graduate Students

• Zhigang Chen
• Min-Gyu Cho
• Yoo-Jin Choi
• Xin Hu
• Hyoil Kim
• Kyu-Han Kim
• Ashwini Kumar
• Alex Min
• Wei Sun
• Jian Wu

Postdoctoral Fellows

• Bechir Hamdaoui
• Young-June Choi

Alumni

• Jai-Jin Lim
• Songkuk Kim
• Mohamad El Gendy
• Chun-Ting Chou
• Daji Qiao
• Sunghyun Choi

Group Meeting Schedule

Network group holds weekly group meeting on every Tuesday during winter 2007 semester.

• Time: 10:30am - Noon on Tuesday
• Room: CSE 4941

Selected Previous Projects

• Mobile and Wireless Networks (IEEE 802.11-based)
• Wireless Wide Area Networks (WWANs)
• Differentiated Services on the Internet
• Statistical Performance Guarantees
• Flow and Congestion Control
• QoS Communication Architecture Design
• QoS Routing