Tutorial 1 P2P and NGN - Fire and Water or Cookies and Cream?
Tutorial 2 Cognitive Radios and Networks

Tutorial 1

Title: P2P and NGN - Fire and Water or Cookies and Cream
  April 6, 2009 [Monday] 8:30AM ~ 12:00PM, Woodlawn Boardroom
Instructor:   Dipl.-Inform. Jens Fiedler

Senior Researcher
Fraunhofer FOKUS, Competence Center for Next Generation Network Infrastructures (NGNI)


Abstract:     Since the establishment of the internet, it was desired by users to run their own services. In the internet, this means running servers which are known and contacted by other people. Running servers at home, connected by small bandwidth connections is limiting the service significantly. A new paradigm was the concept of multiple cooperating users to provide a more resilient and scalable service platform, without central servers, which also avoided a controlling third party. The peer-to-peer (P2P) concept become rapidly popular by file sharing tools, which enabled users to exchange files without having to upload them to some server. P2P traffic has been measured to be the dominating factor in internet. In this tutorial, we give a short introduction in P2P concepts and algorithms. We then move to P2P applications and platforms and have a look at the current status of P2P standardization. We will also discuss open issues in P2P networks and finally we will introduce current P2P projects and how a future P2P landscape could look like.
Biography:    Jens Fiedler finished his diploma in computer science in October 2004 at the Technical University of Berlin (TUB). Since May 2005 he works as a researcher at the Fraunhofer institute for open communications systems - FOKUS in the competence center for next generation network infrastructures - NGNI. His expertise includes knowledge in several programming languages, e.g. C/C++, Java. His core competences are VoIP Infrastructures, High Availability, Reliability and Scalability in VoIP Infrastructures, Peer-to-peer technologies, P2P integration and general network protocols. He worked in projects like 6net (EU), SNOCER (EU) and VoIP-Defender (FOKUS). His is currently involved in developing P2P strategies for IMS and in the EU-project VITAL++.

Tutorial 2

Title: Cognitive Radios and Networks
  April 6, 2009 [Monday] 13:00PM ~ 17:45AM, Woodlawn Boardroom
Instructors:        Dr. Luiz A. DaSilva

Bradley Department of Electrical and Computer Engineering
Virginia Tech


  Dr. Allen B. MacKenzie

Bradley Department of Electrical and Computer Engineering
Virginia Tech


Abstract:     This tutorial will provide an overview of current research on cognitive radios and cognitive networks. A cognitive radio is a transceiver that is aware of its environment, adaptive, and capable of learning from experience. The development of cognitive radios is largely motivated by the desire to manage the spectrum more efficiently and dynamically. Cognitive networks are capable of perceiving current network conditions and then planning, learning and acting according to end-to-end goals. Cognitive networks are motivated by the complexity, heterogeneity, and reliability requirements of tomorrow’s networks, which are increasingly expected to self-organize to meet user and application objectives. We will describe current experimental cognitive radio platforms and the opportunities and challenges in utilizing these platforms in cognitive network research infrastructures. By defining cognitive radios and networks, examining their relationship to other technologies, discussing critical design issues, and providing a framework for implementation, we aim to establish a foundation for further research and discussion.
Biography:    Luiz A. DaSilva joined Virginia Tech’s Bradley Department of Electrical and Computer Engineering in 1998, where he is now an Associate Professor. Dr. DaSilva's research focuses on resource management in wireless networks. Topics of particular interest include cognitive networks, experimental research on mobile ad-hoc networks, and the application of game theory to both. Current and recent research sponsors include the National Science Foundation, the Office of Naval Research, DARPA, and Microsoft Research, among others. Dr. DaSilva is a member of the Wireless @ Virginia Tech research group, a Senior Member of IEEE, and a member of the ASEE and of ACM. In 2006, he was named a College of Engineering Faculty Fellow at Virginia Tech.
Biography: Allen B. MacKenzie has been an Assistant Professor of Electrical and Computer Engineering at Virginia Tech since 2003. He joined Virginia Tech after receiving his Ph.D. in Electrical Engineering from Cornell University. Dr. MacKenzie's research focuses on wireless communication systems and networks. His current research interests include cognitive radio and cognitive network algorithms, architectures, and protocols and the analysis of such systems and networks. His current research sponsors include the National Science Foundation, the National Institute of Justice, and DARPA. Dr. MacKenzie is a member of the IEEE, ACM, and ASEE. In 2006, he received the Virginia Tech College of Engineering Dean's Award for Outstanding New Assistant Professor