Nikolaos Vlassopoulos

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I. INTRODUCTION Signal processing and telecommunication applications require FFT implementations that can perform large size, low latency computations while exhibiting low power consumption [12]. These demanding computational tasks are executed either by a single, high frequency embedded processor [5] or by using an Application Specific Integrated Circuit(More)
Recommended by Lionel Torres We consider here the feasibility of gathering multiple computational resources by means of decentralized and simple local rules. We study such decentralized gathering by means of a stochastic model inspired from biology: the aggregation of the Dictyostelium discoideum cellular slime mold. The environment transmits information(More)
The stochastic Greenberg-Hastings cellular automaton is a model that mimics the propagation of reaction-diffusion waves in active media. Notably, this model undergoes a phase transition when the probability of excitation of a cell varies. We developed a specific FPGA design to study the critical behavior of this model. Using dedicated architectural(More)
A control-theoretic approach in designing Digital to Analogue Converters and Digital Amplifiers which leads to improved performance in Audio and Multimedia applications is presented in this paper. The design involves an over-sampling and a pulse modulation component which is driven by a pulse generation algorithm based on the characteristics of the output(More)