• Software architecture and software technologies for mobile Internet applications
• Ambient intelligence and ubiquitous networks
• Self-organization for communication systems
• Ad-hoc and multi-hop networking
• Quality of service for mobile communication systems

Selected Presentations

• The Mobile Web as a Platform for Pervasive Services Keynote presentation at International Conference on Pervasive Services, July 2008, Italy
• Design Principles for Mobile Computing and Applications, Keynote presentation, KIVS 2007, Bern.
• Design Principles for Mobile Computing & Communication Systems, Christian Prehofer, Stanford University Mobile Computing Seminar, 2006.
• The converged multi-service network: Reviewing the latest standards for Quality of Service, Global IP & Broadband Services, Berlin, Okt. 2004.

Books & Thesis

• Christian Prehofer, „Solving Higher-Order Equations: From Logic to Programming“, Birkhäuser PTCS Series, 1997.
• Christian Prehofer, Flexible Construction of Software Components: A Feature-Oriented Approach, Habilitation Thesis, Technical University of Munich, 1999

Selected Journal and Book Contributions

• C. Prehofer, J. van Gurp, J. Bosch, Compositionality in Software Platforms, in Emerging Methods, Technologies and Process Management in Software Engineering, Wiley, 2008.
• C. Prehofer, C. Bettstetter, Wireless Communiation Networks, in 4G Mobile Technology: Services with Initiative, H. Berndt (Ed.), Wiley, 2008.
• C. Prehofer, Context-aware Mobility Management, in 4G Mobile Technology: Services with Initiative, H. Berndt (Ed.), Wiley, Feb. 2008.
• R. Bless, J. Hillebrand, C. Prehofer, M. Zitterbart, A Quality-of-Service Signaling Architecture for Next Generation, IP-based Mobile Networks, Wireless Personal Communications, Volume 43, No. 3, Springer Verlag, 2007.
• S. Tarkoma, C. Prehofer, A. Zhdanova, H. Rajasekaran. SPICE: Towards Next Generation IMS-based Service Platforms. International Engineering Consortium (IEC) “Business Models and Drivers for Next Generation IMS Services” report, 2008.
• S. Tarkoma, C. Prehofer, S. Sovio, P. Laitinen. Composable Mediation for Security-aware Mobile Services. IEEE Communications Magazine, 2007.
• E. Carlson, C. Prehofer, C. Bettstetter, H. Karl, A. Wolisz, A Distributed End-to-End Reservation Protocol for Wireless IEEE 802.11 based Mesh Networks, IEEE Journal on Selected Areas in Communications (JSAC), Special Issue on Multi-Hop Wireless Mesh Networks, 2006.
• P. Hoffmann, C. Bettstetter, C. Prehofer, Performance Impact of Multihop Handovers in an IP-based Multihop Radio Access Network, ACM SIGMOBILE Mobile Computing and Communications (MC2R) Review, 2006.
• Qing Wei, Károly Farkas, Christian Prehofer, Paulo Mendes, Bernhard Plattner, Context-aware Handover Using Active Network Technology, Elsevier Computer Networks Journal.
• C. Prehofer and C. Bettstetter. Self-Organization in Communication Networks: Principles and Design Paradigms. IEEE Communications Magazine, Feature Topic on Advances in Self-Organizing Networks, July 2005, © IEEE
• C. Prehofer, J. Hillebrand, P. Hofmann, P. Mendes, Q. Wei, and C. Bettstetter. Active IP Networking: Towards Self-Organized Ambient Communication. NTT DoCoMo Technical Journal, vol. 6, no. 1, June 2004.
• J. Hillebrand, C.Prehofer, R. Bless, M. Zitterbart, Quality-of-Service Signaling for Next-Generation IP-based Mobile Networks, IEEE Communications Magazine, June 2004, © IEEE
• N. Niebert, A. Schieder, H. Abramowicz, G. Malmgren, J. Sachs, U. Horn, C. Prehofer, H. Karl, Ambient Networks – An Architecture for Communication Networks Beyond 3G, Wireless Com. Mag, May 2004, © IEEE
• C. Prehofer, Plug-and-Play Composition of Features and Feature Interactions with Statechart Diagrams, Sosym, 2004, Springer-Verlag
• C. Prehofer, E. Kellerer, R. Hirschfeld, H. Berndt, K. Kawamura, An Architecture Supporting Adaptation and Evolution in Fourth Generation Mobile Communication Systems, Journal of Communications and Networks, Volume 4 Number 4, Dec. 2002.
• Christian Prehofer, „Feature-Oriented Programming: A New Way of Object Composition“, Concurrency and Computation, Vol. 13, 2001. Extended version of ECOOP '97 paper
• G. Eichler, H. Hussmann, G. Mamais, I. Venieris, C. Prehofer and S. Salsano, „Implementing Integrated and Differentiated Services for the Internet with ATM Networks: A Practical Approach“, In: IEEE Communications Magazine, Jan. 2000. © IEEE
• Michael Hanus and Christian Prehofer, „Higher-Order Narrowing with Definitional Trees“, In: Journal of Functional Programming, Vol. 9, No. 1, 1999.
• Tobias Nipkow and Christian Prehofer, „Higher-Order Rewriting and Equational Reasoning“, In: W. Bibel, P. Schmitt (Eds.), Automated Deduction - A Basis for Applications. Volume I, Kluwer, 1998.
• Tobias Nipkow and Christian Prehofer, „Type Reconstruction for Type Classes“, In: J. Functional Programming, Vol. 5 (2), 1995.

More references at http://www.prehofer.de/Research/Welcome.html