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Πλοήγηση ανά Θέμα "Radio communication"

Αποτελέσματα 1-9 από 9

    • 5G-XHaul: a converged optical and wireless solution for 5G transport networks 

      Gutiérrez J., Maletic N., Camps-Mur D., García E., Berberana I., Anastasopoulos M., Tzanakaki A., Kalokidou V., Flegkas P., Syrivelis D., Korakis T., Legg P., Markovic D., Lyberopoulos G., Bartelt J., Chaudhary J.K., Grieger M., Vucic N., Zou J., Grass E. (2016)
      The common European Information and Communications Technology sector vision for 5G is that it should leverage on the strengths of both optical and wireless technologies. In the 5G context, a wide spectra of radio access ...

    • Adaptive radio resource management in a sectored cell for broadband wireless access systems 

      Papathanasiou, C.; Dimitriou, N.; Tassiulas, L. (2010)
      In this work, we analyze the performance of a multi-user sectored MIMO/OFDMA system under the limited feedback constraint. Dynamic radio resource management methods are used to a reuse-one sectorized cell in order to reduce ...

    • Cooperative cognitive network slicing virtualization for smart IoT applications 

      Foukalas F., Tziouvaras A., Karetsos G. (2020)
      This paper proposes the cooperative cognitive net-work slicing virtualization solution for smart Internet of things (IoT) applications. To this end, we deploy virtualized small base stations (vSBSs) in SDR devices that ...

    • Cooperative handoff in wireless networks 

      Athanasiou, G.; Korakis, T.; Tassiulas, L. (2008)
      In 802.11-based wireless networks the stations (STAs) are associated with the available access points (APs) and communicate through them. In traditional handoff schemes the STAs get information about the active APs in their ...

    • LAC: Load-aware channel selection in 802.11 WLANs 

      Athanasiou, G.; Broustis, I.; Korakis, T.; Tassiulas, L. (2008)
      Dense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large body of previous studies. However, none of ...

    • New channel allocation techniques for power efficient WiFi networks 

      Miliotis, V.; Apostolaras, A.; Korakis, T.; Tao, Z.; Tassiulas, L. (2010)
      Energy efficiency becomes evergreen than ever before. Over the last few years a significant research in wireless communications, aiming to enhance communications efficiency subject to constraint of power consumption, has ...

    • On the implementation of relay selection strategies for a cooperative diamond network 

      Apostolaras, A.; Choumas, K.; Syrigos, I.; Koutsopoulos, I.; Korakis, T.; Argyriou, A.; Tassiulas, L. (2013)
      In this paper, we present an implementation design of a TDMA protocol for the canonical diamond-topology network containing a source, two relays and a destination (single unicast session). Getting inspired by the established ...

    • The same, only different: Contrasting mobile operator behavior from crowdsourced dataset 

      Kousias K., Midoglu C., Alay O., Lutu A., Argyriou A., Riegler M. (2018)
      Crowdsourcing mobile network performance evaluation is rapidly gaining popularity, with new applications aiming to deliver more accurate and reliable results every day. From the perspective of end-users, these utilities ...

    • Spatial multiplexing based on distributed antenna arrays for mobile WiMAX networks 

      Papathanasiou, C.; Dimitriou, N.; Tassiulas, L. (2010)
      A novel cell architecture based on Distributed Antenna Arrays for next generation mobile WiMAX systems is proposed. By exploiting Spatial Multiplexing and beamforming techniques, our target is to maximize the throughput ...