In telecommunication systems microprocessors have to handle the signalization process in ISDN networks and the data packets in GPRS mobile networks. In case of GPRS...
Peakedness of Overflow and Freed Carried Streams for a Single Link
Mean and variance of a call arrival process with exponentially distributed holding times are defined by the mean and variance, respectively, of the number of occupied...
The understanding of biochemical processes requires the study of structure and dynamics of biomolecules of varying size. In these investigations vast amounts of data are...
Frequency Assignment in Point-to-Multipoint Radio Access Systems
The purpose of a point-to-multipoint radio access system (PMP-system) is to supply wireless access to voice/data communication networks. Base stations form the access...
The aim of this project is the development of mathematical tools and software for the design of broadband virtual private networks. Currently, most of the internet...
For printing machines setup times account for a significant portion of the overall production time. They depend heavily on the sequence of jobs. In cooperation with...
Subdivisions of combinatorial objects arise in various contexts, part of which are investigated in the following project:
Polyhedral subdivisions of point configurations...
Signaling is crucial to the operation of modern telecommunication networks. A breakdown in the signaling infrastructure typically causes customer service failures, incurs...
In order to efficiently use an automated shelf system the stacker cranes must perform all storage and retrieval operations ``as good as possible''. possible objectives...
Models and Competitive Analysis of Transportation Problems
Transportation systems (e.g. automated shelf systems, automated guided vehicles) are targeted to accomplish their tasks as efficiently as possible. However, many aspects...
GSM network operators have only a very limited number of radio frequencies at their disposal. A frequency plan allocates frequencies to the base station antennas. Several...
Semidefinite programming generalizes linear programming in that it uses semidefinite matrix variables (for a survey on literature and software see the page Semidefinite...
In public transport, in rail and air traffic vehicle rotations must be constructed on the basis of a given timetable. Usually, the vehicles are of several types or sizes...
Many real world problems can be modeled as mixed integer programs (MIPs) or mixed integer nonlinear programs (MINLPs). This project aims at developing tools for modeling...
Optimization of Berlin's Telebus Dial-a-Ride Service for Handicapped People
Telebus is Berlin's dial-a-ride service for handicapped people. Every day, about 2,000 transportation orders are scheduled into tours for more than 100 minibuses, which...
Mathematical Programming Computation (MPC) publishes original research articles covering computational issues in mathematical programming. Articles report on innovative...
OPUS 4 is an open source repository software for documents, particulary theses and dissertations, that supports libraries and other cultural institutions in their open...
This project pursues a new solution approach for large multistage stochastic programs. The approach generalizes existing algorithms that have proved successful in...
