Software-Defined Networks for Optical Networks Using Flexible Orchestration: Advances, Challenges, and Opportunities

Table 2

Inclusive and exclusive selection methods.

	Inclusive criteria	Exclusive criteria
Type of research paper	(i) Written in English; (ii) A thorough understanding of the technologies that make up SDNs and optical networks is needed; (iii) The survey, conferences, qualitative, descriptive, analytical, conclusive, case studies	(i) Unpublished studies; (ii) Abstracts/posters; (iii) Quantitative, fundamental, exploratory
Scope of paper	(i) Optical networks/software-defined networks, 5G, edge computing; (ii) 2016 to present works of literature (core references)	(i) No referencing from outside the scope of the subject of interest
Type of publication	(i) Google Scholar; (ii) IEEE Xplore; (iii) SpringerLink; (iv) Elsevier ScienceDirect; (v) MDPI; (vi) Hindawi; (vii) Authorised journals	(i) Unauthorised and unrecognisable journals