QoS-aware optimal resilient virtual networks

Arsany Basta, Isil Burcu Barla, Marco Hoffmann, Georg Carle

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Network virtualization is seen as a possible solution to the ossification problem of the Internet by providing flexible and scalable virtual networks running over heterogeneous physical infrastructure. As for today's networks, it is very crucial to evaluate the virtual networks' adaptability to fulfill the demanding quality requirements of the diverse service offers. In addition, such an environment should promote protection strategies to face the unpredictable network failures, which cause significant service interruptions and consequently lead to definite revenue losses. Therefore, we introduce Quality of Service (QoS) modeling in virtual networks and provide three novel QoS-aware, resilient and cost-optimal virtual network design solutions. Through comprehensive simulations we show the necessity for such QoS models in virtual networks, where a no-QoS model fails to meet the requirements of 76% of the services for some service distributions. Finally, we compare the performance of the three proposed solutions having QoS-guarantees and resilience at different virtualization layers and show that there is a trade-off between virtual network cost and network utilization.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications, ICC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Print)9781467331227
StatePublished - 2013
Event2013 IEEE International Conference on Communications, ICC 2013 - Budapest, Hungary
Duration: 9 Jun 201313 Jun 2013

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607


Conference2013 IEEE International Conference on Communications, ICC 2013


  • QoS
  • network virtualization
  • resilience
  • virtual network mapping


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