An Oscillator Model for High-Precision Synchronization Protocol Discrete Event Simulation

Abstract

It is well known that a common notion of time in distributed systems can be used to ensure additional properties such as real-time behavior or the identification of the order of events. As large-scale hardware testbeds for such systems are neither efficient nor easy to manage, discrete event simulations (DES) can be used to model such networks. However, to ensure an exact behavior of such simulations, high precise models of the local clocks are also needed: the driving oscillators have to be modeled in a way that a DES simulation of a free-running node clock shows the same Allan deviation as the simulated counterpart. This paper shows an approach to find a corresponding model for a simulator using white noise and a filter with the same power density spectrum as real-world oscillators.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2007
Accession Number
ADA485491

Entities

People

  • Anetta Nagy
  • Georg Gaderer
  • Joergen Mad
  • Nikolaus Keroe
  • Patrick Loschmidt
  • Roman Beigelbeck

Organizations

  • Austrian Academy of Sciences

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Clocks
  • Computers
  • Filters
  • Frequency
  • Measurement
  • Multiple Access
  • Noise
  • Oscillators
  • Precision
  • Simulations
  • Simulators
  • Spectra
  • Standards
  • Time Division Multiple Access
  • Time Interval Counters
  • Time Intervals
  • White Noise

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Networking
  • Positioning, Navigation, and Timing (PNT) Technology.