Prof. Dr. Klara Nahrstedt

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Vortragender Prof. Dr. Klara Nahrstedt
Titel SDN-Assisted Multi-Stream Management for Real-Time Applications
Zeit Donnerstag, 02.07.2015, 10:00 – 11:00 Uhr
Ort S3|20, Raum 111
Rundeturmstr. 10, 64283 Darmstadt
Current real-time applications such as telepresence systems require a very strong real-time interactivity. Requirements are even more stringent in multi-stream and multi-site teleimmersive applications due to strong dependencies across geographically distributed streams. In this talk, I will talk about a cross-layer session-network control protocol (Software-Defined Network Northbound Protocol and Interface) for multi-stream and multi-site real-time applications, called OpenSession, which represents the interaction between the application-level controller and software-defined network (SDN) controller. Furthermore, OpenSession aims to improve interactivity, resource utilization and scalability by decoupling application layer data and control plane functionality, and partially offload the data plane functionalities to network layer switches. The control of network switches during the session run-time happens via OpenSession which then leverages the Software-Defined Networking (e.g., OpenFlow) assistance. The experiments with the cross-layer control session-network control are very encouraging, since OpenSession improves the performance, interactivity and resources usage of our real-time applications such as the 3D Teleimmersion at the data plane.
Klara Nahrstedt is a full professor at University of Illinois at Urbana-Champaign, Computer Science Department. She is the recipient of the Early NSF Career Award, the Junior Xerox Award, the IEEE Communication Society Leonard Abraham Award for Research Achievements, the University Scholar Award and the Humboldt Research Award. She was the editor-in-chief of the ACM/Springer Multimedia Systems Journal (2000-2007), associate editor of ACM Transactions on Multimedia Computing, Communications and Applications (2005-now), associate editor of IEEE Transactions on Information Forensics & Security, general co-chair of ACM Multimedia 2006, general chair of ACM NOSSDAV 2007, general chair of IEEE PerCom 2009, and Ralph and Catherine Fisher Professor (2002-2011). She was elected to serve as the chair of the ACM SIG Multimedia (2007-2013).

Klara Nahrstedt received her BA in mathematics from Humboldt University, Berlin, in 1984, and M.Sc. degree in numerical analysis from the same university in 1985. She was a research scientist in the Institute for Informatik in Berlin until 1990. In 1995 she received her PhD from the University of Pennsylvania in the Department of Computer and Information Science. She is the member of ACM and IEEE Fellow.