Stephan Werner

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This paper addresses the problem of mitigating intentional jamming in navigation receivers using smart antennas and space-time processing. Three different anti-jamming receiver structures employing computationally efficient multistage Wiener filter processing and householder transforms are presented. Space-time processing provides sufficient number of(More)
Virtualizing complex hardware, such as heterogeneous multiprocessor systems, enables developers to use standard Application Programming Interfaces (APIs) for application integration. Especially, the supply of an Operating System (OS) is well appreciated since many features such as drivers, the runtime environment and scheduling mechanisms are available and(More)
This paper proposes low-complexity time-domain channel estimators for OFDM systems. Time-domain channel estimation combined with frequency domain equalization is an attractive approach, since it can provide lower complexity and better estimator performance than pure frequency domain processing. In the particular case of constant modulus (M-PSK) modulation,(More)
The communication infrastructure is one of the important components of a multicore system along with the computing cores and memories. A good interconnect design plays a key role in improving the performance of such systems. In this paper, we introduce a hybrid communication infrastructure using both the standard bus and our area-efficient and(More)
Efficiently managing the parallel execution of various application tasks onto a heterogeneous multi-core system consisting of a combination of processors and accelerators is a difficult task due to the complex system architecture. The management of reconfigurable multi-core systems which exploit dynamic and partial reconfiguration in order to, e.g. increase(More)
One challenge in developing complex software for embedded systems is the missing option of rapid prototyping in early stages of the development cycle. In this paper we present the use of the High Level Simulation Framework “Open Virtual Platforms” (OVP) for Software-in-the-Loop simulation of embedded control applications. Therefore, we(More)
Heterogeneous dynamic computing platforms are one of the big trends in today's electronic world. These platforms typically feature different General-Purpose-Processors (GPP) combined with accelerators on a reconfigurable layer. However, this necessitates specialized programming models and an Operating System (OS) for dealing with the dynamicity. To allow(More)
The FlexTiles Platform has been developed within a Seventh Framework Programme project which is co-funded by the European Union with ten participants of five countries. It aims to create a self-adaptive heterogeneous many-core architecture which is able to dynamically manage load balancing, power consumption and faulty modules. Its focus is to make the(More)