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By doing this, NFV provides the necessary flexibility to enable agile, cost-effective, and on-demand service delivery models combined with automated management. Different management and orchestration challenges arise in such virtualized and distributed environments. A major challenge in the selection of the most suitable edge nodes is that of deploying virtual network functions (VNFs) to meet requests from multiple users. This article addresses the VNF placement problem by providing a novel integer linear programming (ILP) optimization model and a novel VNF placement algorithm. In our definition, the multi-objective optimization problem aims to (i) minimize the energy consumption in the edge nodes; (ii) minimize the total latency; and (iii) reducing the total cost of the infrastructure. Our new solution formulates the VNF placement problem by taking these three objectives into account simultaneously. In addition, the novel VNF placement algorithm leverages VNF sharing, which reuses VNF instances already placed to potentially reduce computational resource usage. Such a feature is still little explored in the community. Through simulation, numerical results show that our approach can perform better than other approaches found in the literature regarding resource consumption and the number of SFC requests met.<\/jats:p>","DOI":"10.3390\/fi14120361","type":"journal-article","created":{"date-parts":[[2022,11,30]],"date-time":"2022-11-30T08:46:41Z","timestamp":1669798001000},"page":"361","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["A Novel Strategy for VNF Placement in Edge Computing Environments"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3916-2368","authenticated-orcid":false,"given":"Anselmo Luiz \u00c9den","family":"Battisti","sequence":"first","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5430-2168","authenticated-orcid":false,"given":"Evandro Luiz Cardoso","family":"Macedo","sequence":"additional","affiliation":[{"name":"High-Speed Networks Laboratory, Systems Engineering and Computer Science Program (PESC), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-914, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7375-213X","authenticated-orcid":false,"given":"Marina Ivanov Pereira","family":"Josu\u00e9","sequence":"additional","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8544-0181","authenticated-orcid":false,"given":"Hugo","family":"Barbalho","sequence":"additional","affiliation":[{"name":"Dell EMC Research Center, Rua Ant\u00f4nio Barros de Castro, 119, Cidade Universit\u00e1ria, Rio de Janeiro 21941-615, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5334-8279","authenticated-orcid":false,"given":"Fl\u00e1via C.","family":"Delicato","sequence":"additional","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1233-9736","authenticated-orcid":false,"given":"D\u00e9bora Christina","family":"Muchaluat-Saade","sequence":"additional","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5064-4793","authenticated-orcid":false,"given":"Paulo F.","family":"Pires","sequence":"additional","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7163-4666","authenticated-orcid":false,"given":"Douglas Paulo de","family":"Mattos","sequence":"additional","affiliation":[{"name":"MidiaCom Laboratory, Institute of Computing, Universidade Federal Fluminense (UFF), Niter\u00f3i 24210-240, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana Cristina Bernardo de","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Dell EMC Research Center, Rua Ant\u00f4nio Barros de Castro, 119, Cidade Universit\u00e1ria, Rio de Janeiro 21941-615, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"518","DOI":"10.1109\/TNSM.2016.2598420","article-title":"Resource Allocation in NFV: A Comprehensive Survey","volume":"13","author":"Botero","year":"2016","journal-title":"IEEE Trans. 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