ComNets - Kommunikationsnetze  
Universität Bremen

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Dipl.-Ing. Stefan Aust

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Postal Address
Kommunikationsnetze -- FB1
Universität Bremen
Kufsteiner Str., NW 1
D-28359 Bremen



Tel.: (0421) 218-8264
Fax: (0421) 218-3601

E-Mail: aust(at)comnets.uni-bremen.de

Research

My research is concerned with the interworking between multihop ad hoc networks and cellualr systems, e.g. Mobile IP/
Hierarchical Mobile IP and AODV in IPv6 based wireless networks. Aspects such as scalability, gateway discovery, and
coverage extension are key topics. Further issue is the acceleration of handovers in heterogeneous wireless networks based
on Link Layer information. I am involved in various European projects on mobile Internet systems (NOMAD and xMOTION)
and the German fundet BMBF-Project IPonAir. Finally, I am an active member of the VDE-ITG 5.2.4 working group
(Mobility in IP-based Networks) and member of the IEEE.

Projects

IPonAir - Next Generation Wireless Networks - BMB+F Research Project (October 2001 - September 2004)

The BMB+F project "IPonAir - Wireless Internet of the next Generation" started in October 2001. The project is
coordinated by Prof. Dr. M. Zitterbart, head of Institute of Telematics, University of Karlsruhe (TH). Industrial
partners are Alcatel, Ericsson Eurolab Deutschland GmbH, T-Systems Nova, Lucent, NEC Europe Ltd., Nokia and Siemens.
Furthermore, the Universities of Karlsruhe, Berlin, Munich, Bonn, Bremen, Essen, Kassel, Frankfurt and the FH Friedberg
take part. IPonAir's major interest is the integration of mobile ad hoc networks (MANETs) with wireless infrastructure
based networks, e.g. GSM/GPRS, WLAN and UMTS. Thereby, a coverage extension exceeding the cell size can be achieved.

NOMAD - IST Funded Project (June 2001 - July 2004)

The main objective of NOMAD is to develop and demonstrate a middleware capable of seamlessly integrating available and
future heterogeneous and homogeneous network technologies (e.g., UMTS, HiperLAN2), as well as Internet-compatible,
multihop ad hoc networks into a single integrated network platform. Further, NOMAD will support transparent service
discovery and provision over integrated networks by the means of an intelligent service location and configuration
middleware mechanism.

xMOTION - IST Funded Project (June 2002 - December 2003)

The objective of xMOTION is to enhance citizen safety & security by demonstration of the interoperability of diverse wireless
technologies (2.5-3G) and their mutual support for a better response in emergency scenarios. Three trial set-ups will be used
for testing: Teleambulance, Emergency Management, and Transport Surveillance. Although the scenarios are thematically different,
they are similar in structure and in their technical requirements. They need e.g. interoperability between networks, high
bandwidth during peak phases, location accuracy, and short response times. In all scenarios, empirical data will be gathered
on the performance and real-world adequacy of the wireless technologies to be established in the near future.

@dwise - German Industrial Project (October 2000 - April 2001)

The @dwise-project aims to analyze the requirements and future realization options for the introduction of innovative
services which are based on a client-server architecture and make use of a service execution environment within
the mobile client. It also evaluates the potential for introducing new concepts for services to become a part of
the UMTS service environment, which enhance the user experience and ease the usage of complex network functionality.

Publications

IETF-Drafts

Journals/Books

Papers/Conferences

Teaching

Nom@d Student Project (Computer Science)

IETF - Current Activities and Mobility Protocols

Project/Master Thesis (Studien/Diplomarbeiten)

Closed

Links

IETF Homepage

IPv6, Mobile IP

AODV, OLSR

Network Simulator (ns-2), OPNET

Linux Portal, Slashdot

Mitarbeiter | Forschung | Hauptseite

Stefan Aust
Last modified: Tue Sep 13 11:30:00 2005