Distributed algorithms are characterized by the fact that several autonomous processes work concurrently on different parts of a common problem. The processes communicate only by messages. Since no process has an up to date view of the global state, this leads to difficult but interesting effects. Read more on distributed algorithms (in German) here.
Infrastructures for distributed Systems ("Jini & Friends")
Jini[TM], the distributed systems technology from Sun Microsystems, enables easy spontaneous
communication between several devices and/or services. Our research interests are the investigation
of possible application scenarios for Jini and other related architectures.
Agents in Distributed Systems
Mobile agents are autonomous programs that move around in a computer
network (typically intranets or parts of the Internet) and perform some
service on behalf of a user. In the WASP project, an infrastructure was
developed that enables mobile agents to migrate from one Web server to
another Web server thereby accessing local data in a controlled way.
Parallel and Distributed Simulation of VLSI Circuits
Based on a prototype of a distributed
circuit simulator, we examine general possibilities
for speeding up simulations by using parallel event-driven simulation
accelerations are not easy to achieve and require careful optimization
of the basic conservative and optimistic simulation algorithms. Important
issues are also the initial partitioning of the model in order to
map submodels to different processors and the granularity of the events.
The interaction of these
aspects as well as further optimization possibilities by a dynamic
load balancing component are considered.
Management of Distributed Systems
Management of distributed systems encompasses the administration
of computer networks, distributed systems, and
distributed applications. Of particular interest are
the functional aspects of management: error management, configuration
performance management, and safety management.
JavaCard Applications in Telecommunication Scenarios
The joint project with the Deutsche Telekom investigated
the role Java-based smartcards may play in the
area of telecommunication applications.
The goals of the project were to
identify several application fields and scenarios in which the
JavaCard can be applied in a useful way, and to implement some of these
scenarios in prototypes.
WWW-based Applications for Telecommunication Systems
In a project together with Bosch Telecom the applicability of WWW based
for modern telecommunication systems using CORBA interfaces were
By loading maintenance
from an integrated WWW server, the telecommunication systems themselves
provide adequate maintenance
tools to the service staff
that can be used via a conventional WWW browser.
MOON - Management of Optical Network
MOON was a project within the ACTS programme of the EC.
The main purpose of the project is the development of a framework for
the management of optical long-distance traffic networks. The task of
the TUD part was the design and the implementation of a language for
formal behavior specification in information models. The
language is of general applicability and can be processed
in order to simplify the generation of
simulators and prototypes.
CTI Control of a PBX with CORBA and JTAPI
In the context of a project with Bosch
Telecom, a Least Cost Routing component was
developed that controls the routing decisions of a telecommunication system using CORBA and the
Java Telephony API interface.