Now showing items 1-6 of 6

  • 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 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 ...
  • 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 ...