Lluís Fàbrega Soler
Lluís Fàbrega has been an associate professor in computer science at the University of Girona (UdG) since 2008. He received a degree in telecommunications engineering (1995) and a master’s degree in mobile communications (1996) at the Polytechnical University of Catalonia, and a Ph.D. degree in computer science at the UdG (2008). His research interests include the design and performance evaluation of routing, traffic engineering and quality of service (QoS) mechanisms, in the Internet, connection-oriented network technologies and virtualization-based networking. He is member of the Broadband Communications and Distributed Systems (BCDS) research group at the UdG.
In his PhD thesis (2008) he designed several network schemes to provide QoS (minimum throughput) to TCP traffic in the Internet, using low complexity mechanisms: edge-to-edge and measurement-based admission control at the flow level, and traffic conditioning and queue disciplines based on packet classes with different discarding priority in queues. On the other hand, during those years he also worked on mechanisms of reliability (against failures) and dynamic assignment of resources in connection-oriented networks, and on the development of a simulator to evaluate them.
Later on he participated in the Celtic European project TIGER2 (2008-10), which aimed at developing a complete network architecture able to provide the quality of service and reliability required by users while reducing the cost with respect other technologies. TIGER2 proposed the use of PON in access networks and the integration of Carrier Ethernet and WDM with a single GMPLS control plane in aggregation and core networks. In this project, he coordinated the UdG team and the relationship with the project partners, and at the Spanish consortium level, he coordinated the applications for funding and the final reports to the Spanish Ministry. He worked on several aspects related to the performance of Carrier Ethernet, fault recovery
for multicast traffic, self-optimization mechanisms, and the evaluation of business opportunities arising from the technologies proposed by TIGER2.
Then he participated in the FP7 European Project EULER (2010-14), whose main objective was to investigate new routing paradigms for the Future Internet that faced the problems of the current interdomain routing system based on BGP. In this project, he coordinated the UdG team and the relationship with the project partners, and together with the UPC team, they were the leaders of the dissemination and exploitation work package. He worked mainly on the design of new routing schemes for the Internet that were scalable (“compact”), based on geometric routing and the word-metric space (i.e., generated by algebraic groups), and co-supervised a PhD thesis (2014) on this topic.
Then he continued working on the design of scalable and dynamic routing schemes for “large” networks such as the Internet and the interconnection networks of Data Centers; specifically,on the development of dynamic (fault tolerant) routing schemes for Cayley graphs based on automata and word processing techniques, and co-supervised a PhD thesis (2019) on this topic.
He is currently working on mechanisms (routing, resource allocation and QoS) to create logical networks (slices) in networks using virtualization (NFV/SDN), using deep learning techniques, and co-supervising a PhD thesis on this topic.
Finally, he has coordinated several courses in Master programs, he has co-advised two PhD theses (and a third one is ongoing), and he has been reviewer of PhD thesis and papers in important journals (JSAC, PNET, IJCS, etc.) and conferences (CoNEXT, INFOCOM, DSOM, etc.) within his research area.
