Publications associées à Time and frequency transfer

Byzantine Consensus is Θ(n^2): The Dolev-Reischuk Bound is Tight even in Partial Synchrony!

Rachid Guerraoui, Jovan Komatovic, Pierre Philippe Civit, Manuel José Ribeiro Vidigueira, Vincent Gramoli, Seth Gilbert

The Dolev-Reischuk bound says that any deterministic Byzantine consensus protocol has (at least) quadratic communication complexity in the worst case. While it has been shown that the bound is tight in synchronous environments, it is still unknown whether ...

Dagstuhl Publishing2022

Time-Synchronization Attacks against Critical Infrastructures and their Mitigation

Marguerite Marie Nathalie Delcourt

This work focuses on the security of critical infrastructures against time-synchronization attacks (TSA). A TSA can impact any network that relies on the dynamic analysis of data, by altering the time synchronization between its nodes. Such attacked networ ...

EPFL2021

TDOA Source-Localization Technique Robust to Time-Synchronization Attacks

Jean-Yves Le Boudec, Marguerite Marie Nathalie Delcourt

In this paper, we focus on the localization of a passive source from time difference of arrival (TDOA) measurements. TDOA values are computed with respect to pairs of fixed sensors that are required to be accurately time-synchronized. This constitutes a we ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

Time-Synchronization Attack Detection in Unbalanced Three-Phase Systems

Jean-Yves Le Boudec, Mario Paolone, Marguerite Marie Nathalie Delcourt, Gyorgy Miklos Dan

Phasor measurement units (PMU) rely on an accurate time-synchronization to phase-align the phasors and timestamp the voltage and current phasor measurements. Among the symmetrical components computed from the phasors in three-phase systems, the standard pr ...

2021

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

Mario Paolone, Asja Derviskadic, Reza Razzaghi, Quentin Walger

Within the context of time dissemination techniques for power systems applications, the paper discusses the use of the White Rabbit (WR) protocol for synchrophasor networks. Specifically, the paper presents a Phasor Measurement Unit (PMU) integrating the W ...

2019

Feasibility of Time Synchronization Attacks against PMU-based State-Estimation

Jean-Yves Le Boudec, Mario Paolone, Sergio Barreto Andrade, Marguerite Marie Nathalie Delcourt, Gyorgy Miklos Dan

The emerging measurement technology of phasor measurement units (PMUs) makes it possible to estimate the state of electrical grids in real-time, thus opening the way to new protection and control applications. PMUs rely on precise time synchronization, the ...

2019

Easily Deployable Underwater Acoustic Navigation System for Multi-Vehicle Environmental Sampling Applications

Alcherio Martinoli, Alexander Bahr, Felix Stephan Schill, Anwar Ahmad Quraishi

Water as a medium poses a number of challenges for robots, limiting the progress of research in underwater robotics vis-a-vis ground or aerial robotics. The primary challenges are satellite based positioning and radio communication being unusable due to hi ...

IEEE2019

Impact of Time Dissemination Technologies on Synchrophasor Estimation Accuracy

Mario Paolone, Asja Derviskadic, Guglielmo Frigo

The paper discusses the influence of the time synchronization technique on the synchrophasor estimation accuracy in modern Phasor Measurement Units (PMU). Specifically, we make reference to Global Positioning System (GPS), Precision Time Protocol (PTP) and ...

2018

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

Mario Paolone, Asja Derviskadic, Reza Razzaghi, Quentin Walger

2018

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Time and frequency transfer

Byzantine Consensus is Θ(n^2): The Dolev-Reischuk Bound is Tight even in Partial Synchrony!

Time-Synchronization Attacks against Critical Infrastructures and their Mitigation

TDOA Source-Localization Technique Robust to Time-Synchronization Attacks

Time-Synchronization Attack Detection in Unbalanced Three-Phase Systems

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

Feasibility of Time Synchronization Attacks against PMU-based State-Estimation

Easily Deployable Underwater Acoustic Navigation System for Multi-Vehicle Environmental Sampling Applications

Impact of Time Dissemination Technologies on Synchrophasor Estimation Accuracy

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

A 100 kb/s, 4 GHz, 267 mu W Fully Integrated Low Power FM-UWB Transceiver with Multiple Channels

Graph Chatbot

Chattez avec Graph Search

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

Time-Synchronization Attacks against Critical Infrastructures and their Mitigation

Impact of Time Dissemination Technologies on Synchrophasor Estimation Accuracy

Feasibility of Time Synchronization Attacks against PMU-based State-Estimation

A 100 kb/s, 4 GHz, 267 mu W Fully Integrated Low Power FM-UWB Transceiver with Multiple Channels

The White Rabbit Time Synchronization Protocol for Synchrophasor Networks

TDOA Source-Localization Technique Robust to Time-Synchronization Attacks

Time-Synchronization Attack Detection in Unbalanced Three-Phase Systems

Byzantine Consensus is Θ(n^2): The Dolev-Reischuk Bound is Tight even in Partial Synchrony!

Easily Deployable Underwater Acoustic Navigation System for Multi-Vehicle Environmental Sampling Applications