NDLI: Optimal multi-controller placement strategy in SD-WAN using modified density peak clustering

Content Provider	IET Digital Library
Author	Sminesh, Choorkunnu Narayanan Kanaga, Edward Grace Mary Roy, Aiswarya
Abstract	In software-defined wide area networks (SD-WANs), finding an optimal number of controllers and their placement is termed as the controller placement problem. The existing solutions based on multi-objective optimisation techniques incur high computation time. Heuristic algorithms based methods quickly converge to local optimum solutions and clustering-based approaches demand that the number of controllers required to be predefined. In SD-WANs, computationally simple solutions for controller placement can be developed using non-parametric clustering algorithms. The proposed modified density peak (modified-DP) clustering algorithm decides the multi-controller placement for the selected networks from the Internet Topology Zoo. The computed performance metrics are compared with hierarchical k-means, modified affinity propagation (modified-AP), and basic DP (basic-DP) clustering algorithms. The criteria importance through inter-criteria correlation method calculates weights of each performance metric, and a normalised weighted additive utility function computes the utility value for the controller placement using each algorithm. The modified-DP computes the minimum utility value and optimal placement of SDN controllers compared to hierarchical k-means, modified-AP, and basic-DP. The Cbench tool calculates the maximum throughput for the controller placement in each network topology. The calculated fairness in the utilisation of the controllers justifies the optimal controller placement using modified-DP.
Starting Page	3509
Ending Page	3518
Page Count	10
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 20, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/20
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0124
Journal	IET Communications
Publisher Date	2019-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Basic-DP Clustering-based Approach Communication Network Design, Planning And Routing Computationally Simple Solutions Computed Performance Metrics Computer Communication Controller Placement Problem Correlation Method Existing Multiobjective Optimisation Technique Heuristic Algorithm-based Method High Computation Time Internet Modified Affinity Propagation Modified Density Peak Clustering Modified-AP Modified-DP Multicontroller Scenario Multiple Controller Nonparametric Clustering Algorithm Optimal Control Optimal Controller Placement Optimal Multicontroller Placement Strategy Optimal Number Optimal Placement Optimisation Optimisation Technique Pattern Clustering SD-WAN SDN Controller Software Defined Networking Statistics Telecommunication Control Telecommunication Network Topology Wide Area Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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