Stephan Kubisch

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Due to their layered approach, Networks-on-Chip (NoC) are a promising communication backbone in the field of heterogeneous dynamically reconfigurable systems. In this paper a future FPGA architecture is discussed having a hardwired NoC as an additional high-level routing resource. Instead of implementing on-chip interconnection with valuable reconfigurable(More)
Die Kombination aus Standardprozessoren und rekonfigurierbarer Hardware hat sich in Forschung und kommerziellen Anwendungen mit schnell veränderlichen Parametern und Protokollen als flexible und leistungsfähige Architektur erwiesen. Jedoch werden die Möglichkeiten der dynamischen partiellen Rekonfigurierbarkeit noch nicht ausgenutzt, durch die eine weitere(More)
Partial dynamic reconfigurability of modern FPGAs holds the potential of realizing autonomous and highly flexible systems-on-chip (SoC). Current devices can be configured with several partial bitfiles and replace particular ones on demand. But these precompiled bitfiles seriously lack flexibility: they are hardly relocatable and not adjustable. In other(More)
This paper investigates the energy problem in sensor networks. After random deployment, nodes have to observe a region and transmit their sensor data to a central station. By checking redundancies in coverage and transmission with our XGAF algorithm presented here it is possible to shutdown the majority of nodes into sleep mode. Computation reduction in(More)
Managing reconfigurable hardware resources at runtime is expected to be a new task for future operating systems. But due to the mixture of parallel and sequential parts of dynamically reconfigurable applications, it is not entirely clear so far, how to use and to program such systems. A new interpretation of dynamically reconfigurable applications is(More)
Today, an increasing number of customers subscribes for a high bandwidth internet access. But not only speed is demanded. Reliability, availability, and security move more and more into the customers focus. Carriers and Internet Service Providers, too, have increasing requirements derived from new services they want to offer to their customers or use(More)
Today, an increasing number of customers subscribes for a high bandwidth Internet access. But not only communication speed is demanded. Quality-of-service moves more and more into the customers' focus. Both carriers and Internet Service Providers (ISPs) have increasing requirements derived from new services they want to offer to their customers. We present(More)
Today, an increasing number of customers subscribes for a high bandwidth internet access. But not only communication speed is demanded. Quality of Service (QoS) moves more and more into the customers focus. Both Carriers and Internet Service Providers (ISPs) have increasing requirements derived from new services they want to offer to their customers. A new(More)
During the last decades, the Internet has steadily developed into a mass medium with millions of users. On the one hand, newfangled services replace traditional ones. Naturally, these are thereby expected to offer at least the same features as their classical pendants, e.g., when VoIP replaces traditional fixed line telephone networks. On the other hand,(More)
During the last years, the Internet has grown into a mass-medium for communication and information exchange. Millions of people are using the Internet for business and in social life. Users can be reached easily and cost-effectively. Unfortunately the Internet's open structure is the reason for its frequent misuse for illegal and criminal actions such as(More)