Browsing by Author "Liaskos, Christos K."

Now showing items 1-20 of 23

    • Conference Object  

      3D channel modeling and characterization for hypersurface empowered indoor environment at 60 GHz millimeter-wave band 

      Mehrotra, Rashi; Ansari, Rafay Iqbal; Pitilakis, Alexandros; Nie, Shuai; Liaskos, Christos K.; Kantartzis, Nikolaos V.; Pitsillides, Andreas (Society for Computer Simulation International, 2019)
      This paper proposes a three-dimensional (3D) communication channel model for an indoor environment considering the effect of the Hypersurface. The Hypersurface is a software controlled intelligent metasurface, which can ...
    • Article  

      Balancing wireless data broadcasting and information hovering for efficient information dissemination 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Lestas, Marios; Pitsillides, Andreas (2012)
      Wireless data broadcasting is an efficient, bandwidth preserving way of data dissemination. However, as the amount of data increases, the waiting time of the clients becomes unacceptably high. The present paper proposes ...
    • Article  

      Broadcast scheduling with multiple concurrent costs 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Lestas, Marios; Pitsillides, Andreas (2012)
      Data dissemination via periodic broadcasting considers a set of items, each with a given request probability, size and scheduling cost. The goal is to construct a broadcast schedule that minimizes the mean query serving ...
    • Article  

      Computing and Communications for the Software-Defined Metamaterial Paradigm: A Context Analysis 

      Abadal, S.; Liaskos, Christos K.; Tsioliaridou, A.; Ioannidis, S.; Pitsillides, Andreas; Sole-Pareta, J.; Alarcon, E.; Cabellos-Aparicio, A. (2017)
      Metamaterials are artificial structures that have recently enabled the realization of novel electromagnetic components with engineered and even unnatural functionalities. Existing metamaterials are specifically designed ...
    • Conference Object  

      CORONA: A coordinate and routing system for nanonetworks 

      Tsioliaridou, A.; Liaskos, Christos K.; Ioannidis, S.; Pitsillides, Andreas (Association for Computing Machinery, Inc, 2015)
      The present paper introduces a joint coordinate and routing system (CORONA) which can be deployed dynamically on a 2D ad-hoc nanonetwork. User-selected nodes are used as anchor-points at the setup phase. All nodes then ...
    • Conference Object  

      A deployable routing system for nanonetworks 

      Liaskos, Christos K.; Tsioliaridou, A.; Ioannidis, S.; Kantartzis, N.; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2016)
      Nanonetworks comprise numerous wireless nodes, assembled at micro-to-nano scale. The unique manufacturing challenges and cost considerations of these networks make for minimal complexity solutions at all network layers. ...
    • Article  

      Design and Development of Software Defined Metamaterials for Nanonetworks 

      Liaskos, Christos K.; Tsioliaridou, A.; Pitsillides, Andreas; Akyildiz, I. F.; Kantartzis, N. V.; Lalas, A. X.; Dimitropoulos, Xenofontas A.; Ioannidis, S.; Kafesaki, M.; Soukoulis, C. M. (2015)
      This paper introduces a class of programmable metamaterials, whose electromagnetic properties can be controlled via software. These software defined metamaterials (SDMs) stem from utilizing metamaterials in combination ...
    • Article  

      Exploration of Intercell Wireless Millimeter-Wave Communication in the Landscape of Intelligent Metasurfaces 

      Tasolamprou, Anna C.; Pitilakis, Alexandros; Abadal, Sergi; Tsilipakos, Odysseas; Timoneda, Xavier; Taghvaee, Hamidreza; Sajjad Mirmoosa, Mohammad; Liu, Fu; Liaskos, Christos K.; Tsioliaridou, Ageliki; Ioannidis, Sotiris; Kantartzis, Nikolaos V.; Manessis, Dionysios; Georgiou, Julius; Cabellos-Aparicio, Albert; Alarcón, Eduard; Pitsillides, Andreas; Akyildiz, Ian F.; Tretyakov, Sergei A.; Economou, Eleftherios N.; Kafesaki, Maria; Soukoulis, Costas M. (2019)
      Software-defined metasurfaces are electromagnetically ultra-thin, artificial components that can provide engineered and externally controllable functionalities. The control over these functionalities is enabled by the ...
    • Conference Object  

      Fault Adaptive Routing in Metasurface Controller Networks 

      Saeed, Taqwa; Skitsas, Constantinos; Kouzapas, Dimitrios; Lestas, Marios; Soteriou, Vassos; Philippou, Anna; Abadal, Sergi; Liaskos, Christos K.; Petrou, Loukas; Georgiou, Julius; Pitsillides, Andreas (2018)
      HyperSurfaces are a merge of structurally reconfigurable metasurfaces whose electromagnetic properties can be changed via a software interface, using an embedded miniaturized network of controllers, thus enabling novel ...
    • Conference Object  

      Feedback Based Beam Steering for Intelligent Metasurfaces 

      Ashraf, Nouman; Saeed, Taqwa; Ansari, Rafay Iqbal; Lestas, Marios; Liaskos, Christos K.; Pitsillides, Andreas (2019)
      This paper promotes the use of feedback in the design of a beam steering application using the intelligent metasurface paradigm. The control objective is to direct the incoming signal on the metasurface towards a single ...
    • Conference Object  

      Information hovering: A new approach for performance acceleration of wireless push systems 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Pitsillides, Andreas (2011)
      Wireless data broadcasting systems are typically assigned limited operational bandwidth due to their usually wide spatial coverage. This limitation raises issues of increased client waiting times, especially as the total ...
    • Conference Object  

      An Interpretable Neural Network for Configuring Programmable Wireless Environments 

      Liaskos, Christos K.; Tsioliaridou, Ageliki; Nie, Shuai; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian (2019)
      Software-defined metasurfaces (SDMs) comprise a dense topology of basic elements called meta-atoms, exerting the highest degree of control over surface currents among intelligent panel technologies. As such, they can ...
    • Conference Object  

      Joint Compressed Sensing and Manipulation of Wireless Emissions with Intelligent Surfaces 

      Liaskos, Christos K.; Tsioliaridou, Ageliki; Pitilakis, Alexandros; Pirialakos, George; Tsilipakos, Odysseas; Tasolamprou, Anna; Kantartzis, Nikolaos; Ioannidis, Sotiris; Kafesaki, Maria; Pitsillides, Andreas; Akyildiz, Ian (2019)
      Programmable, intelligent surfaces can manipulate electromagnetic waves impinging upon them, producing arbitrarily shaped reflection, refraction and diffraction, to the benefit of wireless users. Moreover, in their recent ...
    • Article  

      Lightweight, self-tuning data dissemination for dense nanonetworks 

      Tsioliaridou, A.; Liaskos, Christos K.; Ioannidis, S.; Pitsillides, Andreas (2015)
      A nanonetwork comprises a high number of autonomous nodes with wireless connectivity, assembled at micro-to-nanoscale. In general, manufacturing and cost considerations imply that nanonetworking approaches should have ...
    • Conference Object  

      N3: Addressing and routing in 3D nanonetworks 

      Tsioliaridou, A.; Liaskos, Christos K.; Pachis, L.; Ioannidis, S.; Pitsillides, Andreas (Institute of Electrical and Electronics Engineers Inc., 2016)
      Wireless communication at nanoscale faces unique challenges stemming from low hardware capabilities, limited power supply and unreliable channel conditions. The present paper proposes a networking scheme that can operate ...
    • Article  

      A New Wireless Communication Paradigm through Software-Controlled Metasurfaces 

      Liaskos, Christos K.; Nie, Shuai; Tsioliaridou, Ageliki; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian (2018)
      Electromagnetic waves undergo multiple uncontrollable alterations as they propagate within a wireless environment. Free space path loss, signal absorption, as well as reflections, refractions, and diffractions caused by ...
    • Article  

      A novel communication paradigm for high capacity and security via programmable indoor wireless environments in next generation wireless systems 

      Liaskos, Christos K.; Nie, Shuai; Tsioliaridou, Ageliki; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian (2019)
      Wireless communication environments comprise passive objects that cause performance degradation and eavesdropping concerns due to anomalous scattering. This paper proposes a new paradigm, where scattering becomes ...
    • Article  

      On the Network-Layer Modeling and Configuration of Programmable Wireless Environments 

      Liaskos, Christos K.; Tsioliaridou, Ageliki; Nie, Shuai; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian F. (2019)
      Programmable wireless environments enable the software-defined propagation of waves within them, yielding exceptional performance. Several building-block technologies have been implemented and evaluated at the physical ...
    • Article  

      Periodic scheduling with costs revisited: A novel approach for wireless broadcasting 

      Liaskos, Christos K.; Xeros, Andreas; Papadimitriou, Georgios I.; Lestas, Marios; Pitsillides, Andreas (2012)
      Periodic broadcast scheduling typically considers a set of discrete data items, characterized by their popularity, size and scheduling cost. A classic goal is the definition of an infinite, periodic schedule that yields ...
    • Conference Object  

      Realizing Wireless Communication Through Software-Defined HyperSurface Environments 

      Liaskos, Christos K.; Nie, Shuai; Tsioliaridou, Ageliki; Pitsillides, Andreas; Ioannidis, Sotiris; Akyildiz, Ian (2018)
      Wireless communication environments are unaware of the ongoing data exchange efforts within them. Moreover, their effect on the communication quality is intractable in all but the simplest cases. The present work proposes ...