Πλοήγηση ανά Συγγραφέα "Stamoulis, G. I."
-
A 3-D Fast transform-based preconditioner for large-scale power grid analysis on massively parallel architectures
Daloukas, K.; Evmorfopoulos, N.; Tsompanopoulou, P.; Stamoulis, G. I. (2014)Efficient analysis of on-chip power delivery networks is one of the most challenging problems that EDA is confronted with. This paper addresses the problem of simulating general multi-layer power delivery networks with ... -
A 3-d hybrid Jiles-Atherton/Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators
Dimitropoulos, P. D.; Stamoulis, G. I.; Hristoforou, E. (2006)The Jiles-Atherton (JA) theory of hysteresis is currently used in the majority of commercial CAD tools, mainly due to its implementation simplicity in fast and stable algorithms. The JA model provides precise results in ... -
CARROT - A tool for fast and accurate soft error rate estimation
Bountas, D.; Stamoulis, G. I. (2006)We present a soft error rate (SER) analysis methodology within a simulation and design environment that covers a broad spectrum of design problems and parameters. Our approach includes modeling of the particle hit at the ... -
A design flow for the precise identification of the worst-case voltage drop in power grid analyses
Karampatzakis, D. P.; Tsiampas, M. K.; Evmorfopoulos, N. E.; Stamoulis, G. I. (2008)Modern IC designs contain hundreds of millions of transistors and new implementations of multi core chips take place in commercial products. Identifying worst-case voltage drop conditions in every hierarchical module ... -
Fast Transform-based preconditioners for large-scale power grid analysis on massively parallel architectures
Daloukas, K.; Evmorfopoulos, N.; Drasidis, G.; Tsiampas, M.; Tsompanopoulou, P.; Stamoulis, G. I. (2012)Efficient analysis of massive on-chip power delivery networks is among the most challenging problems facing the EDA industry today. In this paper, we present a new preconditioned iterative method for fast DC and transient ... -
A hybrid Jiles-Atherton / Stoner-Wohlfarth magnetic hysteresis model for inductive sensors and actuators
Dimitropoulos, P. D.; Stamoulis, G. I.; Hristoforou, E. (2004)The Jiles-Atherton (JA) theory of hysteresis is currently used in the majority of CAD tools. The JA model provides precise results in the case of poly crystalline, multi-domain magnetic structures, whose flux-reversal is ... -
A low-power CMOS VLSI circuit for signal conditioning in integrated capacitive sensors
Dimitropulos, P. D.; Nikolaidis, S. P.; Karampatzakis, D. P.; Stamoulis, G. I. (2004)Capacitive sensor manufacturing processes are rarely compatible with CMOS technologies and, thus, monolithic integration of sensing device and signal-conditioning IC is often not possible. Multi-chip packaging and wire ... -
A low-power VLSI architecture for intra and inter prediction in H.264
Koziri, M. G.; Stamoulis, G. I.; Katsvounidis, I. X. (2006)The H.264 video coding standard can achieve considerably higher coding efficiency than previous standards. The keys to this high code efficiency are mainly the two prediction modes (Intra & Inter) provided by the standard. ... -
A low-power/low-noise readout circuit for integrated capacitive sensors
Dimitropoulos, P. D.; Karampatzakis, D. P.; Panagopoulos, G. D.; Stamoulis, G. I. (2006)A switched-capacitor integrated system is presented in this work that attains sub-fF measurement resolution in integrated capacitive sensors, with 1.5-kHz bandwidth and 50-mu W average power consumption in continuous ... -
A new SOI monolithic capacitive sensor for absolute and differential pressure measurements
Dimitropoulos, P. D.; Kachris, C.; Karampatzakis, D. P.; Stamoulis, G. I. (2005)In the present work, a new monolithic capacitive pressure sensor is being introduced. The sensor is manufactured according to a custom, 15-step SOI process. The process primarily offers great flexibility as far as sensor ... -
A parallel fast transform-based preconditioning approach for electrical-thermal co-simulation of power delivery networks
Daloukas, K.; Marnari, A.; Evmorfopoulos, N.; Tsompanopoulou, P.; Stamoulis, G. I. (2013)Efficient analysis of massive on-chip power delivery networks is among the most challenging problems facing the EDA industry today. Due to Joule heating effect and the temperature dependence of resistivity, temperature is ... -
A power grid analysis and verification tool based on a statistical prediction engine
Tsiampas, M. K.; Bountas, D.; Merakos, P.; Evmorfopoulos, N. E.; Bantas, S.; Stamoulis, G. I. (2010)Voltage drops are one of the most stringent problems in modern IC implementation, which is exacerbated by the ever decreasing transistor sizes and interconnect line widths. In order to find the true worst case voltage drop ... -
Power reduction in an H.264 encoder through algorithmic and logic transformations
Koziri, M. G.; Stamoulis, G. I.; Katsavounidis, I. X. (2006)The H.264 video coding standard can achieve considerably higher coding efficiency than previous video coding standards. The keys to this high coding efficiency are the two prediction modes (Intra & Inter) provided by H.264. ... -
An RTL-to-grid design flow for power grid verification based on a statistical estimation engine
Karampatzakis, D. P.; Evmorfopoulos, N. E.; Tsiampas, M. K.; Stamoulis, G. I. (2006)The most important reliability problem of modern power distribution networks is the voltage drop or IR-drop problem. In this paper we present a design flow based on industrial tools for power grid verification, where the ... -
A statistically-based engine for P/G network optimization
Karampatzakis, D. P.; Evmorfopoulos, N. E.; Stamoulis, G. I. (2005)The problem of optimum design of general (tree or graph-based) power distribution networks with respect to the voltage drop effect is addressed in this paper. A rigorous formulation based on linear circuit theory is ... -
Supporting service differentiation in wireless sensor networks
Nef, M. A.; Karagiorgou, S.; Stamoulis, G. I.; Kikiras, P. K. (2011)The evolution of wireless sensor technology allows for the provision of enhanced services to miscellaneous application domains. In parallel, Quality of Service (QoS) support becomes necessary to satisfy the needs of these ... -
A tool for calculating energy consumption in wireless sensor networks
Dimitriou, G.; Kikiras, P. K.; Stamoulis, G. I.; Avaritsiotis, I. N. (2005)Energy and total useful lifetime are primary design concerns of fundamental importance, in a variety of real life applications, where the deployment of a Wireless Sensor Network is desired. In this paper the authors introduce ... -
Voltage-drop-constrained optimization of power distribution network based on reliable maximum current estimates
Evmorfopoulos, N. E.; Karampatzakis, D. P.; Stamoulis, G. I. (2004)The problem of optimum design of tree-shaped power distribution networks with respect to the voltage drop effect is addressed in this paper. An approach for the width adjustment of the power lines supplying the circuit's ... -
Wireless sensor networks: Business models and market issues
Kikiras, P. K.; Drakoulis, D. K.; Dres, D. A.; Stamoulis, G. I. (2007)Networks of sensors are continuously gaining ground in all types of industry applications and are believed to be evolving in a way similar to the evolution of the first interconnected computer systems into what we call ...