Pascal T. Wolkotte

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Network-on-Chip (NoC) is an energy-efficient on-chip communication architecture for multi-tile System-on-Chip (SoC) architectures. The SoC architecture, including its run-time software, can replace inflexible ASICs for future ambient systems. These ambient systems have to be flexible as well as energy-efficient. To find an energy-efficient solution for the(More)
— In this article we present the results of partitioning the OFDM baseband processing of a DRM receiver into smaller independent processes. Furthermore , we give a short introduction into the relevant parts of the DRM standard. Based on the number of multiplications and additions we can map individual processes on a heterogeneous multi-tile architecture.(More)
This paper describes the mapping of a two-dimensional inverse discrete cosine transform (2-D IDCT) onto a word-level reconfigurable Montium R processor. This shows that the IDCT is mapped onto the Montium tile processor (TP) with reasonable effort and presents performance numbers in terms of energy consumption, speed and silicon costs. The Montium results(More)
In this paper we describe a sequential simulation method to simulate large parallel homo-and heterogeneous systems on a single FPGA. The method is applicable for parallel systems were lengthy cycle and bit accurate simulations are required. It is particularly designed for systems that do not fit completely on the simulation platform (i.e. FPGA). As a case(More)
and circuit-switching. In this paper we derive an energy model for both NoC architectures to predict their energy consumption per transported bit. Both architectures are also compared with a traditional bus architecture. The energy model is primarily needed to find a near optimal run-time mapping (from an energy point of view) of inter-process communication(More)
This paper evaluates an algorithm that maps a number of communicating processes to a heterogeneous tiled System on Chip (SoC) architecture at run-time. The mapping algorithm minimizes the total amount of energy consumption, while still providing an adequate Quality of Service (QoS). A realistic example is mapped using this algorithm.
—In this paper, we explore the designs of a circuit switched router, a wormhole router, a quality-of-service (QoS) supporting virtual channel router and a speculative virtual channel router and accurately evaluate the energy-performance tradeoffs they offer. Power results from the designs placed and routed in a 90-nm CMOS process show that all the(More)
Network-on-Chip (NoC) architectures have a wide variety of parameters that can be adapted to the designer's requirements. Fast exploration of this parameter space is only possible at a high-level and several methods have been proposed. Cycle and bit accurate simulation is necessary when the actual router's RTL description needs to be evaluated and verified.(More)
In this paper we focus on algorithms and reconfigurable multi-core architectures for streaming digital signal processing (DSP) applications. The multi-core concept has a number of advantages: (1) depending on the requirements more or fewer cores can be switched on/off, (2) the multi-core structure fits well to future process technologies, more cores will be(More)