Please use this identifier to cite or link to this item: https://knowledgecommons.lakeheadu.ca/handle/2453/4541
Title: Placements of virtual network functions for effective network functions virtualization
Authors: Ghai, Karanbir Singh
Keywords: Wireless networks;Network function virtualization;Integer Linear Programming;Mathematical modelling
Issue Date: 2019
Abstract: In the future wireless networks, network function virtualization will lay the foun- dation for establishing a new resource management framework to e ciently utilize network resources. The rst part of this thesis deals in the minimization of the to- tal latency for a network and how to solve it e ciently. A model of users, Virtual Network Functions (vNFs) and hosting devices have been considered and was used to nd the minimum latency using Integer Linear Programming (ILP). The problem is NP-hard and takes exponential time to solve in the worst case. A Stable Matching based heuristic has been proposed to solve the problem in polynomial time and then the local search is utilized to improve the e ciency of the result. The second part of this thesis proposes the problem of fair allocation of the vNFs to hosting devices. A mathematical programming based model (ILP) has been designed to solve the problem which takes exponential time to solve in the worst case, due to its NP-hard nature. Thus an heuristic approach has been provided to solve the problem in polynomial time.
URI: http://knowledgecommons.lakeheadu.ca/handle/2453/4541
metadata.etd.degree.discipline: Computer Science
metadata.etd.degree.name: Master of Science
metadata.etd.degree.level: Master
metadata.dc.contributor.advisor: Choudhury, Salimur
Appears in Collections:Electronic Theses and Dissertations from 2009

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