Recent Research Topics
My methodological and theoretical research as well as a considerable portion of my applied and collaborative work addresses Energy Efficiency in back-haul networks. An innovative contribution of my work is the development of a new algorithms to efficiently solve NP-Hard routing problems based on multiple mathematical approaches. These algorithms were designed to run on a centralized controller using the Software Defined Networking (SDN) paradigm. In contrast with traditional distributed energy efficient routing algorithms, a centralized algorithm offered great potential in terms of global optimization. They were implemented with practical constraints in mind; that is discrete link rates and limited routing table size within networking devices.
Research problems were modeled in GAMS and solved by CPLEX to provide mathematically optimal solutions. Based on the behavior of the optimal solution, heuristic algorithms were developed yielding high quality solutions in network acceptable time. Below is a summary of my most recent work in collaboration with my research group on this topic.
An interesting and powerful use of the algorithms developed in my work is to deploy them on SDN enabled networking hardware and further analyze the impact of my methodology in real life scenarios.
In addition to this, I am interested in expanding the scope of my work to work on energy efficiency in cellular networks. My intention is to develop a new methodology to cope with the wireless domain challenge, providing energy efficiency in both the back-haul and front-haul of cellular networks.