• Dynamic overload balancing in server farms 

      Li, C. P.; Paschos, G. S.; Tassiulas, L.; Modiano, E. (2014)
      We consider the problem of optimal load balancing in a server farm under overload conditions. A convex penalty minimization problem is studied to optimize queue overflow rates at the servers. We introduce a new class of ...
    • Dynamic viewing pattern exploitation in Peer-to-Peer Video-on-Demand 

      Koravos, F.; Tassiulas, L. (2011)
      Unstructured BitTorrent-like Peer-to-Peer networks have been extensively studied as an important enabling technology for Video-on-Demand. While most studies maintain the pull-based nature of unstructured Peer-to-Peer ...
    • On evaluating the impact of tile partitioning in AV1 

      Panagou N., Papadopoulos P.K., Koziri M., Loukopoulos T. (2018)
      The advent of 4K and 8K resolutions in cameras and TV sets, posed a challenge to Video on Demand (VoD) and live streaming industry since the network overhead compared to FullHD was multiplied. For this reason, new video ...
    • Uplink allocation based on user actions for peer-to-peer Video-on-Demand 

      Koravos, F.; Tassiulas, L. (2014)
      For more than a decade peer-to-peer networking technologies have met with huge success among Internet users, with peer-to-peer traffic already accounting for the largest part of the Internet's total traffic. Peer-to-peer ...
    • Video Delivery in Dense 5G Cellular Networks 

      Argyriou A., Poularakis K., Iosifidis G., Tassiulas L. (2017)
      One of the main challenges for mobile network operators today is the efficient delivery of mobile VoD services. In order to satisfy their requirements, we must revolutionize the way we manage the densely deployed resources ...