Exploració per autor "Verikoukis, Christos"

Ara es mostren els items 77-96 de 154

    • Fairness enhancement in a self-configuring cluster-based wireless ad hoc network 

      Alonso Zárate, Jesús; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2005)
      Comunicació de congrés
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      In this paper we analyze an unfairness problem arisen when implementing the self-configuring clusterbased DQCA AD HOC MAC protocol in a near-static topology. When there is a low relative mobility among terminals and ...

    • Fairness in multi-operator energy sharing 

      Oikonomakou, Maria; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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      The present paper studies fair sharing possibilities of stored renewable energy (RE) in densely populated areas among multiple mobile network operators (MNOs). The main objective is to enable MNOs, who already share their ...

    • Flexible aerial relay nodes for communication recovery and D2D relaying 

      Mekikis, Prodromos Vasileios; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      Current mobile communication infrastructure may fail in cases where low coverage areas suddenly become overcrowded by mobile devices or in natural disasters. In this paper, we propose the use of flexible aerial relay (FAR) ...

    • Fuzzy-logic scheduling for highly reliable and energy-efficient medical body sensor networks 

      Otal Ruiz, Begoña; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (2009)
      Text en actes de congrés
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      Wireless body sensor networks in medical settings operate under the conflicting requirements of maintaining the desired reliability and message latency of data transmissions, while simultaneously maximizing battery-life ...

    • Game theoretic approach for switching off base stations in multi-operator environments 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013)
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      The emerging increase of the number of Base Stations causes redundant energy consumption, especially during low traffic periods, when the Base Stations capacity is underutilized. In this paper, we study energy efficiency ...

    • Game theoretic D2D content dissemination in 4G cellular networks 

      Antonopoulos, Angelos; Kartsakli, Elli; Verikoukis, Christos (2014-06-01)
      Article
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      The widespread proliferation of mobile devices has motivated Device-to-Device (D2D) communications as a means of cell offloading toward better Quality of Service (QoS) and higher energy efficiency. Although Wi-Fi networks ...

    • Game theoretic infrastructure sharing in wireless cellular network 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (IGI Global, 2015-08)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The emerging traffic demand has fueled the rapid densification of cellular networks. The increased number of Base Stations (BSs) leads to augmented energy consumption and expenditures for the Mobile Network Operators ...

    • Game-theoretic infrastructure sharing in multioperator cellular networks 

      Bousia, Alexandra; Kartsakli, Elli; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2016-05)
      Article
      Accés obert
      The introduction of fourth-generation wireless technologies has fueled the rapid development of cellular networks, significantly increasing the energy consumption and the expenditures of mobile network operators (MNOs). ...

    • "Green" distance-aware base station sleeping algorithm in LTE-advanced 

      Bousia, Alexandra; Antonopoulos, Angelos; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2012)
      Text en actes de congrés
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      In this paper, we propose a switch on/off algorithm for Base Stations (BSs), which exploits the knowledge of the distance between the User Equipments (UEs) and their associated BS. Our novel approach hopes to provide ...

    • Handoff functions for a distributed queuing collision avoidance medium access control protocol for wireless LANs 

      Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús; Kartsakli, Elli; Antonopoulos, Angelos; Verikoukis, Christos (2009)
      Comunicació de congrés
      Accés obert

    • HEH-BMAC: hybrid polling MAC protocol for WBANs operated by human energy harvesting 

      Ibarra, Ernesto; Antonopoulos, Angelos; Kartsakli, Elli; Verikoukis, Christos (2015-02-01)
      Article
      Accés obert
      This paper introduces human energy harvesting medium access control (MAC) protocol (HEH-BMAC), a hybrid polling MAC suitable for wireless body area networks powered by human energy harvesting. The proposed protocol combines ...

    • Hybrid access techniques for densely populated wireless local area networks 

      Alonso-Zarate, J.; Crespo, Cristian; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (INTECH, 2011-03)
      Capítol de llibre
      Accés obert

    • Impact of correlated log-normal shadowing on two-way network coded cooperative wireless networks 

      Lalos, Aristeidis; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2013-09)
      Article
      Accés restringit per política de l'editorial
      In this letter, we provide a novel theoretical framework for studying the effects of correlated shadowing, in the number of relays that are capable of helping two nodes (sources) to exchange their messages. The relays use ...

    • Improving the energy-efficiency of machine-to-machine communications with cooperative ARQ 

      Alonso Zárate, Jesús; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2009)
      Text en actes de congrés
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      The energy-efficiency of Machine-to-Machine (M2M) communications can be improved by applying cooperation at the medium access control (MAC) layer. This means that machines can help each other to establish an energy-efficient ...

    • Information exchange in randomly deployed dense WSNs with wireless energy harvesting capabilities 

      Mekikis, Prodromos Vasileios; Antonopoulos, Angelos; Kartsakli, Elli; Lalos, Aristeidis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2016-04-01)
      Article
      Accés obert
      As large-scale dense and often randomly deployed wireless sensor networks (WSNs) become widespread, local information exchange between colocated sets of nodes may play a significant role in handling the excessive traffic ...

    • Joint power-QoS control scheme for energy harvesting body sensor nodes 

      Ibarra, Ernesto; Antonopoulos, Angelos; Kartsakli, Elli; Rodrigues, Joel; Verikoukis, Christos (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      In this paper, we aim at the optimal use of the scarce energy collected by a node powered by human energy harvesting in order to improve the provided Quality of Service (QoS). To achieve this goal, we have developed a ...

    • Joint uplink and downlink cell selection in cognitive small cell heterogeneous networks 

      Mesodiakaki, Agapi; Adelantado Freixer, Ferran; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
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      In the next few years, small cells (SCs) are about to be densely deployed to achieve sustainable capacity enhancement. Due to the expected high SC density, some SCs will not have a direct connection to the core network, ...

    • Low-overhead heuristic algorithms for spectrum sensing in cognitive radio networks 

      Miliotis, Vasileios; Koutsopoulos, Iordanis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (VDE Conference Publications, 2014)
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      Cognitive Radio (CR) has matured as a research field and has the goal to improve the utilization of spectrum. This technology enables a CR user to function in unlicensed or licensed bands without causing interference to ...

    • Machine-to-machine (M2M) communications for e-health applications 

      Kartsakli, Elli; Lalos, Aristeidis; Antonopoulos, Angelos; Tennina, Stefano; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (Elsevier, 2015)
      Capítol de llibre
      Accés obert
      The emerging technology of machine-to-machine (M2M) communications is bringing a paradigm shift in healthcare delivery. A broad range of e-health applications can be conceived, with considerable benefits for both patients ...

    • Model based compressed sensing reconstruction algorithms for ECG telemonitoring in WBANs 

      Lalos, Aristeidis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014-12-01)
      Article
      Accés restringit per política de l'editorial
      Wireless Body area networks (WBANs) consist of sensors that continuously monitor and transmit real time vital signals to a nearby coordinator and then to a remote terminal via the Internet. One of the most important signals ...