Marinos Charalambides

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Biography

Marinos Charalambides is a research fellow in the Communication and Information Systems Group at the Department of Electronic and Electrical Engineering, University College London. He received a BEng in Electronic and Electrical Engineering, an MSc in Communications Networks and Software, and a PhD in Policy-based Network Management, all from the University of Surrey, UK. His research interests include policy analysis and refinement, resource optimisation and traffic engineering, network monitoring, software defined networking, content management, and energy-aware networking. He has been working on a number of European and UK national research projects since 2004 such as PAQMAN, ENTHRONE, ESII, EMANICS, UNIVERSELF and FLAMINGO. He participates in a number of IEEE conference TPCs such as IM, NOMS, AIMS, Policy, and ManFI, and he serves as a regular reviewer for TNSM, JNSM, IJNM, COMNET, JCN, ADHOC, Network and Communications Magazines. He was/is (Technical Program) Co-Chair of AIMS'14, manSDN/NFV’14, IM'15 Demo track.

PhD project description

The rapid evolution of the Internet, the increasing complexities and heterogeneity of modern networking technology, and the increase in the number of resources to be managed, pose a significant challenge to network management models. Policy-based Network Management (PBNM) is a promising solution for these demands, providing the means by which the administration process can be simplified and largely automated in a flexible manner. The policy-based approach can be used to manage different aspects of a network commonly known as policy disciplines. The main interest in network policies is to manage and control the QoS experienced by networked applications and users, by configuring network elements using specific rules that define which traffic should be treated differently in the network, and how so.

Although extensive work has been done in developing policy specification languages, protocols and architectures to support policy-based management, little attention has been devoted to the area of policy analysis. Policy analysis is considered to be an essential component of modern PBNM solutions and comprises two functionalities: conflict detection and resolution.

In a real networking scenario, multiple policies will apply to network elements in order to support the requirements of different applications and users. Furthermore, the network’s shared resources are composed of several elements with varying capabilities and interfaces. Therefore, there is an apparent need for checking policy consistency prior to deployment, where a conflict detection process can identify any omissions, errors or conflicting requirements of the administrators specifying the policies. In the case of a conflict it is necessary to apply resolution techniques to either prevent a policy from being deployed or suggest ways in which the specification should change to guarantee policy integrity.

As such, the objectives of this thesis are to identify and classify policy conflicts related to the area of QoS management, and also define techniques and methodologies for their detection and resolution. More specifically, we investigate policy conflicts in the context of service and resource management in IP DiffServ Networks, and develop tools that provide support for both static and dynamic conflict detection as well as automated resolution. This work makes use of Event Calculus, a logic-based formalism, which apart from the representation of policies and managed components it provides the system with a certain degree of reasoning ability.

Publications

  1. M. Claeys, D. Tuncer, J. Famaey, M. Charalambides, S. Latre, F. De Turck, G. Pavlou, "Towards Multi-Tenant Cache Management for ISP Networks," to appear in proceedings of the European Conference on Networks and Communications (EUCNC), Bologna, Italy, June 2014.
  2. D. Tuncer, M. Charalambides, H. El-Ezhabi, G. Pavlou, "A Hybrid Management Substrate Structure for Adaptive Network Resource Management," Proceedings of 6th IEEE/IFIP International Workshop on Management of the Future Internet (ManFI), Krakow, Poland, May 2014.
  3. D. Tuncer, M. Charalambides, R. Landa, G. Pavlou, "More Control Over Network Resources: an ISP Caching Perspective," Proceedings of IEEE/IFIP Conference on Network and Service Management (CNSM), Zurich, Switzerland, October 2013.
  4. M. Charalambides, D. Tuncer, L. Mamatas, G. Pavlou, "Energy-Aware Adaptive Network Resource Management," Proceedings of IFIP/IEEE Integrated Management Symposium (IM), Ghent, Belgium, May 2013.
  5. D. Tuncer, M. Charalambides, G. Pavlou, N. Wang, "DACoRM: A Coordinated, Decentralized and Adaptive Network Resource Management Scheme," Proceedings of 13th IEEE/IFIP Network Operations and Management Symposium (NOMS), Hawaii, USA, April 2012.
  6. M. Charalambides, G.Pavlou, P. Flegkas, N. Wang, D. Tuncer, "Managing the Future Internet through Intelligent In-Network Substrates," IEEE Network, Special Issue: Managing an Autonomic Future Internet, Vol. 25, No. 6, Nov/Dec 2011.
  7. D. Tuncer, M. Charalambides, G. Pavlou, N. Wang, "Towards Decentralized and Adaptive Network Resource Management," Proceedings of 7th IEEE/IFIP Conference on Network and Service Management (mini-CNSM), Paris, France, October 2011.
  8. M. Waldburger, M. Charalambides, T. Schaaf, B. Stiller, "Automated Determination of Jurisdiction and Applicable Law for International Service Contracts: Modeling Method, Information Model, and Implementation," Proceedings of 18th Conference of the International Telecommunications Society (ITS), Tokyo, Japan, June 2010.
  9. D. Tuncer, M. Charalambides, G. Pavlou, "Towards Dynamic and Adaptive Resource Management for Emerging Networks," Proceedings of 4th International Conference on Autonomous Infrastructure Management and Security (AIMS), PhD workshop paper, Zurich, Switzerland, June 2010.
  10. J. Loyola, M. Charalambides, I. Aib, J. Serrat, G. Pavlou, R. Boutaba, "Business-driven Management of Differentiated Services," Proceedings of 12th IEEE/IFIP Network Operations and Management Symposium (NOMS), Osaka, Japan, April 2010.
  11. L. Mamatas, S. Clayman, M. Charalambides, A. Galis, G. Pavlou, "Towards an Information Management Overlay for the Future Internet," Proceedings of 12th IEEE/IFIP Network Operations and Management Symposium (NOMS), Osaka, Japan, April 2010.
  12. W. Chai, K. Ho, M. Charalambides, G. Pavlou, "A Policy-driven Network Management System for the Dynamic Configuration of Military Networks," Proceedings of 3rd International Conference on Autonomous Infrastructure Management and Security (AIMS), Enschede, Netherlands, June 2009.
  13. A. Chourmouziadis, M. Charalambides, G. Pavlou, "On the Performance and Scalability of Web Services for Monitoring MPLS-based Networks," Journal of Network and Systems Management (JNSM), Volume 17 , No. 1, Springer, June 2009.
  14. M. Charalambides, G. Pavlou, P. Flegkas, J. Loyola, A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, "Policy Conflict Analysis for DiffServ Quality of Service Management," IEEE Transactions on Network and Service Management (TNSM), Vol. 6, No. 1, IEEE, March 2009.
  15. A.M. Hadjiantonis, M. Charalambides, G. Pavlou, "An Adaptive Service Management Framework for Wireless Networks", IEEE Vehicular Technology Magazine, Special Issue on Policy-based Management for Wireless Multimedia Services, IEEE, Vol. 2, Iss. 3 , p.6-13, Sept 2007.
  16. A. Hadjiantonis, M. Charalambides, G. Pavlou, “A Policy-based Approach for Managing Ubiquitous Networks in Urban Spaces,” Proceedings of the IEEE International Conference on Communications (ICC 2007), Glasgow, UK, June 2007.
  17. J. Loyola, J. Serrat, M. Charalambides, P. Flegkas, G. Pavlou, “A Methodological Approach toward the Refinement Problem in Policy-Based Management Systems,” IEEE Communications Magazine, Topics in Network and Service Management, Vol. 44, No. 10, October 2006.
  18. J. Loyola, J. Serrat, M. Charalambides, P. Flegkas, G. Pavlou, “A Functional Environment Solution for Goal-oriented Policy Refinement,” Proceedings of the 7th IEEE Workshop on Policies for Distributed Systems and Networks (Policy 2006), Ontario, Canada, June 2006.
  19. M. Charalambides, P. Flegkas, G. Pavlou, J. Loyola, A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, “Dynamic Policy Analysis and Conflict Resolution for DiffServ Quality of Service Management,” Proceedings of IEEE/IFIP Network Operations and Management Symposium (NOMS 2006), Vancouver, Canada, April 2006.
  20. J. Loyola, J. Serrat, M. Charalambides, P. Flegkas, G. Pavlou, “GOREMOCH: A Distributed Goal-oriented Policy Refinement Environment,” Proceedings of IEEE/IFIP Network Operations and Management Symposium (NOMS 2006), Vancouver, Canada, April 2006.
  21. A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, P. Flegkas, M. Charalambides, G. Pavlou, “Policy Refinement for IP Differentiated Services Quality of Service Management,” IEEE Transactions on Network and Service Management, 3(2), 2006.
  22. A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, P. Flegkas, M. Charalambides, G. Pavlou, “Policy Refinement for DiffServ Quality of Service Management,” Proceedings 13th HP Openview University Association Workshop (poster), Portugal, July 2005.
  23. M. Charalambides, P. Flegkas, G. Pavlou, A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, J. Loyola, “Policy Conflict Analysis for Quality of Service Management,” Proceedings of the 6th IEEE Workshop on Policies for Networks and Distributed Systems (Policy 2005), Stockholm, Sweden, 2005.
  24. J. Loyola, J. Serrat, M. Charalambides, P. Flegkas, G. Pavlou, A. Lafuente, “Using Linear Temporal Model Chacking for Goal-oriented Policy Refinement Frameworks,” Proceedings 6th IEEE Workshop on Policies for Distributed Systems and Networks (Policy 2005), Stockholm, Sweden, June 2005.
  25. A. Bandara, E. Lupu, A. Russo, N. Dulay, M. Sloman, P. Flegkas, M. Charalambides, G. Pavlou, “Policy Refinement for DiffServ Quality of Service Management,” Proceedings of 9th IEEE/IFIP Integrated Management Symposium (IM 2005), Nice, France, 2005.


External links

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