Energy-Efficient Placement of Virtual Network Functions in a Wireless Mesh Network

Auberlin Paguem Tchinda*, Besfort Shala, Armin Lehmann, Bogdan Ghita, David Walker, Ulrich Trick

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In the context of service provisioning, the integration of Network Functions Virtualization (NFV) enhances the flexibility, scalability, and programmability of telecommunication networks. However, this integration introduces challenges, particularly in optimizing the placement of Virtualized Network Functions (VNFs) within the NFV Infrastructure (NFVI). Existing studies have predominantly focused on well-connected, mains-powered ecosystems like datacentres and cloud networks. In contrast, the aim of this paper is to identify a solution that distributes and deploys a Wireless Mesh Network (WMN) as the backbone for a disaster management communication and service infrastructure. Given the mobility of mesh routers in such scenarios, these devices are often battery-powered. Consequently, the placement of VNFs directly impacts the energy consumption in the network and, subsequently, its lifetime. The proposed solution for the energy-efficient placement of VNF is formulated as a multi-objective optimization problem. This context introduces different approaches and proposes a heuristic algorithm to optimize the placement of VNFs. The evaluation results indicate that the proposed algorithm outperforms prior alternatives in various scenarios. Notably, it surpasses established methods like the Nondominated Sorting Genetic Algorithm II (NSGA-II), commonly used to solve similar problems. This research signifies a significant advancement in addressing the specific challenges associated with NFV integration in wireless mesh networks, particularly in disaster management contexts.

Original languageEnglish
Pages (from-to)64807-64822
Number of pages16
JournalIEEE Access
Volume12
DOIs
Publication statusPublished - 2024

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering

Keywords

  • disaster network
  • Energy efficiency
  • network function virtualization
  • wireless mesh network

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