Rok 2024

• Maximizing SDN resilience to node‐targeted attacks through joint optimization of the primary and backup controllers placements

  Publikacja

  • M. Pióro
  • M. Mycek
  • A. Tomaszewski
  • A. de Sousa

  - NETWORKS - Rok 2024

  In Software Defined Networks (SDN) packet data switches are configured by a limited number of SDN controllers, which respond to queries for packet forwarding decisions from the switches. To enable optimal control of switches in real time the placement of controllers at network nodes must guarantee that the controller-to-controller and switch-to-controller communications delays are bounded. Apart from the primary controllers that...

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Rok 2021

• Enhancing Resilience of FSO Networks to Adverse Weather Conditions

  Publikacja

  • I. Kalesnikau
  • M. Pióro
  • J. Rak
  • H. Ivanov
  • E. Fitzgerald
  • E. Leitgeb

  - IEEE Access - Rok 2021

  Optical wireless networks realized by means of gigabit optical wireless communication (OWC) systems are becoming, in a variety of applications, an important alternative, or a complementary solution, to their fiber-based counterparts. However, performance of the OWC systems can be considerably degraded in periods of unfavorable weather conditions, such as heavy fog, which temporarily reduce the effective capacity of the network....

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• Optimizing FSO networks resilient to adverse weather conditions by means of enhanced uncertainty sets

  Publikacja

  • I. Kalesnikau
  • M. Shehaj
  • D. Nace
  • M. Pióro

  - Optical Switching and Networking - Rok 2021

  This work deals with dimensioning of wireless mesh networks (WMN) composed of FSO (free space optics) links. Although FSO links realize broadband transmission at low cost, their drawback is sensitivity to adverse weather conditions causing transmission degradation on multiple links. Hence, designing such FSO networks requires an optimization model to find the cheapest configuration of link capacities that will be able to carry...

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