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Dr. Windhya Rankothge

Senior Lecturer (Higher Grade)

Faculty of Computing | Computer Systems Engineering

Career Summary

  • August. 2017 – Present:  Senior Lecturer (Higher Grade) - Sri Lanka Institute of Information Technology, Sri Lanka Faculty of Computing
  • January. 2013 – April 2017: Graduate teaching assistant  - Universitat Pompeu Fabra, Barcelona, Department of Information and Communication Technologies 
  • March. 2009 – September 2012: Lecturer  - Sri Lanka Institute of Information Technology, Sri Lanka, Electronic and Computer Engineering Department 
  • September.2006 – October 2008: Industrial Trainee (Information and Technology Division – Systems Team) - Virtusa (Pvt) Ltd. 


  • PhD in Information and Communication Technologies (April 2017) - Universitat Pompeu Fabra, Barcelona, Spain
  • MSc in Computer Science (Specializing in Network Engineering) December 2012 - University of Moratuwa, Department of Computer Science and Engineering, Sri Lanka
  • BSc in Information Technology (Specializing in Computer Systems and Networks) - Sri Lanka Institute of Information Technology, Sri Lanka December 2008 


  • Universitat Pompeu Fabra, Barcelona PhD research scholarship: year 2013 to 2017
  • Best paper award: IEEE Conference on Network Function Virtualization and Software Defined Networks 2015
  • Best post graduate research award: University of Moratuwa, 2012
  • Academic excellence cash prices: Sri Lanka Institute of Information Technology  2007,2006 and 2005

Research Interests and Memberships

Research Interests

  • Software Defined Networks (SDN)
  • Network Functions Virtualization (NFV)
  • Cloud Resource Management
  • Cloud Management Automation


  • IEEE
  • ACM
  • CSSL

Ongoing Research

My Publications

Conference Proceedings

  • W. Rankothge, SV Sendanayake, RGP Sudarshana, BGGH Balasooriya   Technology assisted tool for learning skills development in early childhood  in International Conference on Advances in ICT for Emerging Regions (ICTer),  year 2012,  Sri Lanka,          
  • W. Rankothge, D Dissanayake, U Gunathilaka, S Gunarathna   Plant recognition system based on Neural Networks  in International Conference on Advances in Technology and Engineering (ICATE),  year 2013,  India,          
  • W. Rankothge, G Dias   Adaptive Prefetching of Podcasts in a Limited Bandwidth Network  in International Conference on Computer, Control, Informatics and Its Applications (IC3IA),  year 2013,  Indonesia,          
  • W. Rankothge, J Ma, F Le, A Russo, J Lobo   Towards Making Network Function Virtualization a Cloud Computing Service  in IFIP/IEEE International Symposium on Integrated Network Management (IM),  year 2015,  Canada,          
  • W. Rankothge, F Le, A Russo, J Lobo   Experimental Results on the use of Genetic Algorithms for Scaling Virtualized Network Functions  in IEEE SDN-NFV 2015,  year 2015,  USA,          
  • W. Rankothge, F Le, A Russo, J Lobo   Data Modelling for the Evaluation of Virtualized Network Functions Resource Allocation Algorithms  in arXiv preprint arXiv:1702.00369,  year 2017,            
  • J Ma, W Rankothge, C Makaya, M Morales, F Le, J Lobo   A comprehensive study on load balancers for vnf chains horizontal scaling  in arXiv preprint arXiv:1810.03238,  year 2018,            
  • J Ma, W Rankothge, C Makaya, M Morales, F Le, J Lobo   An Overview of A Load Balancer Architecture for VNF chains Horizontal Scaling  in International Conference on Network and Service Management (CNSM),  year 2017,            

Journal Publications

  • W. Rankothge, G Dias  " For a Better Experience in Podcasting: Adaptive Prefetching Based on User Access Patterns "  International Journal of Scientific & Engineering Research - IJSER,  vol.5,  Issue 5,  2014,        
  • W Rankothge, F Le, A Russo, J Lobo  " Optimizing resource allocation for virtualized network functions in a cloud center using genetic algorithms "  IEEE Transactions on Network and Service Management,  vol.14,  Issue 2,  2017,        
  • MC Jayasuriya, KT Galappaththi, D Sampath, N Nipunika, W. Rankothge  " Experimental Study on an Efficient Dengue Disease Management System: Planning and Optimizing Hospital Staff Allocation "  International Journal of Advanced Computer Science and Applications,      2018,        


  • W. Rankothge, J. Lobo  " Towards virtualized network functions as a service."  Universitat Pompeu Fabra,  2017,      

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