• Content placement in heterogeneous end-to-end virtual networks 

      Katsalis K., Sourlas V., Papapioannou T., Korakis T., Tassiulas L. (2015)
      One of the distinctive features of the new virtualized ecosystem, is the multi-stakeholder participation in the way cloud services are designed, deployed and offered. In this work, we address the emerging content replication ...
    • Cooperation and directionality: A co-opdirectional MAC for wireless ad hoc networks 

      Tao, Z.; Korakis, T.; Slutskiy, Y.; Panwar, S.; Tassiulas, L. (2007)
      Advances in cooperative communications and directional antenna design so far have taken place in parallel, if not in isolation from each other. To explore the role they may play in the next generation of wireless networks, ...
    • Cooperative live video multicast for small cell base stations with overlapping coverage 

      Alay O., Argyriou A. (2016)
      In this paper, we present a cooperative video multicast protocol for densely deployed small cells. We assume that the small cell Base Stations (BS) have overlapping coverages and they are allowed to have interfering ...
    • A demand-driven, proactive tasks management model at the edge 

      Karanika A., Oikonomou P., Kolomvatsos K., Loukopoulos T. (2020)
      Tasks management is a very interesting research topic for various application domains. Tasks may have the form of analytics or any other processing activities over the available data. One of the main concerns is to efficiently ...
    • Distributed cache management in information-centric networks 

      Sourlas, V.; Gkatzikis, L.; Flegkas, P.; Tassiulas, L. (2013)
      The main promise of current research efforts in the area of Information-Centric Networking (ICN) architectures is to optimize the dissemination of information within transient communication relationships of endpoints. ...
    • A distributed data allocation scheme for autonomous nodes 

      Kolomvatsos K., Oikonomou P., Koziri M., Loukopoulos T. (2018)
      The limited computational and storage capabilities of the devices interconnected in Internet of Things (IoT) make them to host only a sub-set of the the collected data. Every device, i.e., an IoT node, should keep only the ...
    • Dynamic CPU scheduling for QoS provisioning 

      Katsalis, K.; Paschos, G. S.; Tassiulas, L.; Viniotis, Y. (2013)
      Distributed, large-scale, enterprise applications are commonly supported in multi-tier data-center environments. In this paper, we study a scheduling problem for sharing CPU time in a cluster of servers among a number of ...
    • An Ensemble Interpretable Machine Learning Scheme for Securing Data Quality at the Edge 

      Karanika A., Oikonomou P., Kolomvatsos K., Anagnostopoulos C. (2020)
      Data quality is a significant research subject for any application that requests for analytics to support decision making. It becomes very important when we focus on Internet of Things (IoT) where numerous devices can ...
    • An intelligent, uncertainty driven management scheme for software updates in pervasive IoT applications 

      Kolomvatsos K. (2018)
      The era of the Internet of Things (IoT) involves a huge number of autonomous devices (nodes) capable of monitoring and interacting with their environment. The autonomous devices are also able of being interconnected, thus, ...
    • Introducing agent evictions to improve application placement in wireless distributed systems 

      Tziritas, N.; Lampsas, P.; Lalis, S.; Loukopoulos, T.; Khan, S. U.; Xu, C. Z. (2012)
      With the development of mobile code frameworks for embedded systems, an application can be structured as a set of cooperating components (agents) that are placed on the nodes of the system in a flexible way. Reducing the ...
    • Leveraging caching for internet-scale content-based publish/subscribe networks 

      Diallo, M.; Fdida, S.; Sourlas, V.; Flegkas, P.; Tassiulas, L. (2011)
      This work is concerned with scaling decentralized content-based publish/subscribe (CBPS) networks for Internet-wide content distribution. A fundamental step for CBPS networks to reach the Internet-scale is to move from the ...
    • Online Inter-Datacenter Service Migrations 

      Tziritas N., Khan S.U., Loukopoulos T., Lalis S., Xu C.-Z., Li K., Zomaya A.Y. (2020)
      Service migration between datacenters can reduce the network overhead within a cloud infrastructure; thereby, also improving the quality of service for the clients. Most of the algorithms in the literature assume that the ...
    • Pricing Based Distributed Traffic Allocation for 5G Heterogeneous Networks 

      Passas V., Miliotis V., Makris N., Korakis T. (2020)
      Next generation (5G and beyond) mobile networks will highly rely on distributed heterogeneous infrastructure, which is foreseen to create a versatile resource ecosystem. In such network deployments, efficient traffic ...
    • Proactive, uncertainty-driven queries management at the edge 

      Kolomvatsos K., Anagnostopoulos C. (2021)
      Research community has already revealed the challenges of data processing when performed at the Cloud that may affect the performance of any desired application. The main challenge is the increased latency observed when ...
    • Rendering-Aware VR Video Caching over Multi-Cell MEC Networks 

      Liu Y., Liu J., Argyriou A., Wang L., Xu Z. (2021)
      Delivering high fidelity virtual reality (VR) video over mobile networks is very challenging since VR applications usually require very high bandwidth and ultra low latency. With the evolution of 5G mobile networks, ...
    • Reputation-based internet sharing in wireless neighborhood community networks 

      Satsiou, A.; Tassiulas, L. (2010)
      This paper proposes easily applicable distributed reputation-based policies to motivate users of a wireless community to share their Internet connection in a p2p fashion. The goal is the provision of free and good quality ...
    • A variable impedance control strategy for object manipulation considering non-rigid grasp 

      Logothetis M., Karras G.C., Alevizos K., Kyriakopoulos K.J. (2020)
      This paper presents a novel control strategy for the compensation of the slippage effect during non-rigidly grasped object manipulation. A detailed dynamic model of the interconnected system composed of the robotic ...