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Next Generation NetworksAlexander Willner

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Dr.-Ing. Alexander Willner

Lupe

IIoT Group Manager & Lecturer

Address:
Room 425
Einsteinufer 25
10587 Berlin
Germany

Phone: +49 30 314 21451
Phone: +49 30 3463 7116

Curriculum Vitae

Dr. Alexander Willner is the head of the Industrial Internet of Things (IIoT) Center at the Fraunhofer Institute for Open Communication Systems (FOKUS) and the head of the IIoT research group at the chair of Next Generation Networks (AV) at the Technical University Berlin (TUB). In joint collaboration with the Berlin Center of Digital Transformation (LZDV) he is working with his groups in applying standard-based Internet of Things (IoT) technologies to industrial domains. With a focus on moving towards the realization of interoperable communication within the Industry 4.0, the most important research areas include industrial real-time networks (TSN), middleware systems (OPC UA), distributed AI (Digital Twins) and distributed Cloud Computing (Edge Computing) including management and orchestration.

Prior research positions include the University Bonn, he holds an M.Sc. and a Ph.D. (Dr.-Ing.) in computer science from the University Göttingen and the Technical University Berlin respectively. His research interests are on distributed information systems, linked data, communication middleware and service-oriented architectures. He is active in relevant standardization activities and alliances and gives a corresponding lecture at the Technical University Berlin; and in the past at the Humboldt University of Berlin as well.

At various occasions Dr. Willner also acts as ambassador for the science capital Berlin.

Tips for Students and Researchers

Publications

A Survey on Network Security
Citation key willner04aaa
Author Hogrefe, Dieter and Soltwisch, Rene and Meyer, Fabian and Lessner, Dirk and Willner, Alexander and Neumann, Niklas
Year 2004
ISSN 1611-1044
Address Göttingen
Number IFI-TB-2004–04
Month apr
Institution Georg-August-Universität Göttingen
Abstract This chapter is about the AAA (Authentication, Authorization and Accounting) framework and its different protocols. The survey begins with the obsolete protocols TACACS and XTACACS, followed by the currently used TACACS+ and RADIUS and ends with the new protocol DIAMETER. To complete the picture COPS is also mentioned. The several protocols will be compared to each other with their advantages and disadvantages and a little introduction about the idea behind AAA will be given.
Bibtex Type of Publication Surveys (ISSN 1611-1044)
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