Concept

Commutation de paquets

Publications associées (457)

Optimal Switching Between Cash-Flow Streams

We consider the problem of finding the optimal time to switch between two measurable cash-flow streams. A complete characterization of the set of solutions is obtained in terms of adjoint variables which measure the available gain from deviations. An itera ...

2017

Timely Updates over an Erasure Channel

Elie Najm, Emina Soljanin

Using an age of information (AoI) metric, we examine the transmission of coded updates through a binary erasure channel to a monitor/receiver. %Coded redundancy is employed to ensure the timely delivery of codupdate packets. We start by deriving the averag ...

2017

Wafer-scale reliable switching memory based on 2-dimensional layered organic-inorganic halide perovskite

Recently, organic-inorganic halide perovskite (OHP) has been suggested as an alternative to oxides or chalcogenides in resistive switching memory devices due to low operating voltage, high ON/OFF ratio, and flexibility. The most studied OHP is 3-dimensiona ...

Royal Soc Chemistry2017

Epitaxy-Induced Assembly and Enantiomeric Switching of an On-Surface Formed Dinuclear Organocobalt Complex

Harald Brune, Zhi Chen

We report on the surface-guided synthesis of a dinuclear organocobalt complex, its self-assembly into a complex nanoarchitecture, and a single-molecule level investigation of its switching behavior. Initially, an organic layer is prepared by depositing hex ...

American Chemical Society2017

Evolution of oxygen vacancies under electrical characterization for HfOx-based ReRAMs

Elmira Shahrabi, Yusuf Leblebici, Jury Sandrini, Behnoush Attarimashalkoubeh

Recently, studies on ReRAMs and their reliability have received increased attention. The reliability issue is due to the nature of oxygen vacancies behaviour under biasing conditions which necessitate further studies to achieve an in-depth understanding. I ...

2017

A Decentralized Switched System Approach to Overvoltage Prevention in PV Residential Microgrids

Florian Dörfler, Pulkit Nahata

In this paper, we consider the problem of overvoltage arising in PV residential microgrids due to excessive power injection into the grid by the PV generators. We propose a decentralized switched controller to curtail excess active power in order to avoid ...

2017

Novel Insight into the Output Current Ripple for Multilevel and Multiphase Converter Topologies

Drazen Dujic, Alexandre François Christe

When it comes to the computation / estimation of the switching losses in a multilevel converter, it is crucial to know the instantaneous value of the output current. If the average output current value is used instead, there is a non negligible error when ...

2017

Does inventor centrality foster regional innovation? The case of the Swiss medical devices sector

Dominique Foray, Michele Pezzoni, Monica Coffano

Does inventor centrality foster regional innovation? The case of the Swiss medical devices sector. Regional Studies. This paper contributes an empirical analysis to the discussion of the impact of inventors' collaboration networks on regional innovation. M ...

Routledge Journals, Taylor & Francis Ltd2017

Age of Information: The Gamma Awakening

Elie Najm, Rajai Nasser

Status update systems is an emerging field of study that is gaining interest in the information theory community. We consider a scenario where a monitor is interested in being up to date with respect to the status of some system which is not directly acces ...

2016

Measuring and Managing Switch Diversity in Software Defined Networks

Maciej Leszek Kuzniar

Software Defined Networking (SDN) is a novel approach to building computer networks. Improved flexibility, simplified management and cost reduction promised by SDN makes many see it as the future of networking. The main insight of SDN is the separation of ...

EPFL2016

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