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In this paper, we study an energy efficiency maximization problem in uplink for D2D communications underlaid with cellular networks on multiple bands. Utilizing stochastic geometry, we derive closed-form expressions for the average sum…

Signal Processing · Electrical Eng. & Systems 2019-09-11 Negar Zabetian , Abbas Mohammadi , Meysam Masoudi

In this work, a new parallel dual-grid multiscale approach for CFD-DEM couplings is investigated. Dual- grid multiscale CFD-DEM couplings have been recently developed and successfully adopted in different applications still, an efficient…

Computational Engineering, Finance, and Science · Computer Science 2018-12-26 Gabriele Pozzetti , Hrvoje Jasak , Xavier Besseron , Alban Rousset , Bernhard Peters

This study proposes a real-time distributed energy resource (DER) coordination model that can exploit flexibility from the DERs to solve voltage and overloading issues using both active and reactive power. The model considers time-coupling…

Systems and Control · Electrical Eng. & Systems 2021-05-07 Sen Zhan , Johan Morren , Wouter van den Akker , Anne van der Molen , Han Slootweg

Modeling and Simulation (M&S) for system design and prototyping is practiced today both in the industry and academia. M&S are two different areas altogether and have specific objectives. However, most of the times these two separate areas…

Software Engineering · Computer Science 2024-07-12 José L. Risco-Martín , J. M. Cruz , Saurabh Mittal , Bernard P. Zeigler

The ongoing connection and automation of vehicles leads to a closer interaction of the individual vehicle components, which demands for consideration throughout the entire development process. In the design phase, this is achieved through…

Systems and Control · Electrical Eng. & Systems 2024-01-23 Peter Baumann , Lars Mikelsons , Oliver Kotte , Dieter Schramm

One of the most significant 5G technology enablers will be Device-to-Device (D2D) communications. D2D communications constitute a promising way to improve spectral, energy and latency performance, exploiting the physical proximity of…

Information Theory · Computer Science 2017-11-10 Marios I. Poulakis , Antonis G. Gotsis , Angeliki Alexiou

We present a new optimization-based method for atomistic-to-continuum (AtC) coupling. The main idea is to cast the coupling of the atomistic and continuum models as a constrained optimization problem with virtual Dirichlet controls on the…

Numerical Analysis · Mathematics 2013-04-19 Derek Olson , Pavel Bochev , Mitchell Luskin , Alexander V. Shapeev

Energy management strategy (EMS) is a key technology for plug-in hybrid electric vehicles (PHEVs). The energy management of certain series-parallel PHEVs involves the control of continuous variables, such as engine torque, and discrete…

Systems and Control · Electrical Eng. & Systems 2024-03-05 Changfu Gong , Jinming Xu , Yuan Lin

Calibration is a vital step in the development of rigorous digital models of diverse physical and chemical processes, yet one which is highly time- and labour-intensive. In this paper, we introduce a novel tool, Autonomous Calibration and…

This paper presents a mixed-integer, nonlinear, multi-objective optimization strategy for optimal power allocation among parallel strings in Battery Energy Storage Systems (BESS). High-fidelity control is achieved by co-simulating the…

Systems and Control · Electrical Eng. & Systems 2025-07-08 Vivek Teja Tanjavooru , Prashant Pant , Thomas Hamacher , Holger Hesse

The evaluation of the performance of clustered cooperative beamforming in cellular networks generally requires the solution of complex non-convex optimization problems. In this letter, a framework based on a hypergraph formalism is proposed…

Information Theory · Computer Science 2015-10-22 Bahar Azari , Osvaldo Simeone , Umberto Spagnolini , Antonia M. Tulino

The development of cost-effective highperformance parallel computing on multi-processor supercomputers makes it attractive to port excessively time consuming simulation software from personal computers (PC) to super computes. The power…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 Ning Lu , Z. Todd Taylor , David P. Chassin , Ross T. Guttromson , R. Scott Studham

In this paper, we propose a model for energy cooperation between cellular base stations (BSs) with individual hybrid power supplies (including both the conventional grid and renewable energy sources), limited energy storages, and connected…

Information Theory · Computer Science 2013-05-28 Yeow-Khiang Chia , Sumei Sun , Rui Zhang

This paper studies energy efficiency maximization in device-to-device (D2D) communications underlaying cellular networks in millimeter-wave (mm-wave) band. A stochastic geometry framework has been used to extract the results. First,…

Signal Processing · Electrical Eng. & Systems 2020-06-08 Negar Zabetian , Abbas Mohammadi , Mohammad Kazemi

Here, we study the flow of energy between coupled simulators in a co-simulation environment using the concept of power bonds. We introduce energy residuals which are a direct expression of the coupling errors and hence the accuracy of…

Systems and Control · Computer Science 2016-11-22 Severin Sadjina , Lars T. Kyllingstad , Eilif Pedersen , Stian Skjong

To improve the cellular energy efficiency, without sacrificing quality-of-service (QoS) at the users, the network topology must be densified to enable higher spatial reuse. We analyze a combination of two densification approaches, namely…

Information Theory · Computer Science 2013-10-22 Emil Björnson , Marios Kountouris , Mérouane Debbah

The traditional explicit electrostatic momentum-conserving Particle-in-cell algorithm requires strict resolution of the electron Debye length to deliver numerical accuracy. The explicit electrostatic energy-conserving Particle-in-Cell…

Plasma Physics · Physics 2023-08-31 Andrew T. Powis , Igor D. Kaganovich

The inclusion of the sensing functionality in the coming generations of cellular networks necessitates a rethink of dense cell deployments. In this paper, we analyze and optimize dense cell topologies for dual-functional radar-communication…

Information Theory · Computer Science 2023-08-29 Abdelhamid Salem , Kaitao Meng , Christos Masouros , Fan Liu , David López-Pérez

In this paper, we analyze and optimize the energy efficiency of downlink cellular networks. With the aid of tools from stochastic geometry, we introduce a new closed-form analytical expression of the potential spectral efficiency…

Information Theory · Computer Science 2018-01-24 Marco Di Renzo , Alessio Zappone , Thanh Tu Lam , Merouane Debbah

When simulators are energetically coupled in a co-simulation, residual energies alter the total energy of the full coupled system. This distorts the system dynamics, lowers the quality of the results, and can lead to instability. By using…

Systems and Control · Computer Science 2020-08-28 Severin Sadjina , Eilif Pedersen