RESEARCH FOCUS

Since April 2008, I am a research staff member in the Telematics Group of Prof. Dr. Hogrefe at the Institute of Computer Science at the Georg-August-Universität Göttingen. I am currently working in the area of mobile communication with main emphasis on security in wireless sensor networks.

COURSES

Current courses of Telematics Group

SUPERVISION

• Investigation in network layer attacks in WSNs (status: complete)

PUBLICATIONS

• Simple secure pki-based scheme for wireless sensor networks. Omar Alfandi, Arne Bochem, Ansgar Kellner, and Dieter Hogrefe. In The Seventh International Conference on Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP 2011), Adelaide, Australia, December 2011.

• Challenges of Secure Routing in WSNs: a Survey. Ansgar Kellner, Kerstin Behrends, and Dieter Hogrefe. Technical Report No. IFI-TB-2010-06, Institute of Computer Science, Georg-August-Universität Göttingen, Germany, September 2010. ISSN 1611-1044.

• Simulation Environments for Wireless Sensor Networks. Ansgar Kellner, Kerstin Behrends, and Dieter Hogrefe. Technical Report No. IFI-TB-2010-04, Institute of Computer Science, Georg-August-Universität Göttingen, Germany, June 2010. ISSN 1611-1044.