Exploració per autor "Mesodiakaki, Agapi"
Ara es mostren els items 1-19 de 19
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Energy and spectrum efficient user association in 5G heterogeneous networks
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialDue to the dense small cell deployment to cope with the increased data traffic of fifth generation (5G) networks, the direct backhaul (BH) connection of all small cells to the core network becomes challenging. To that end, ... -
Energy and spectrum efficient user association in millimeter wave backhaul small cell networks
(2017-02)
Article
Accés obertMacrocells are expected to be densely overlaid by small cells (SCs) to meet increasing capacity demands. Due to their dense deployment, some SCs will not be connected directly to the core network, and thus, they may forward ... -
Energy efficiency analysis of secondary networks in cognitive radio systems
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we evaluate a novel contention-aware channel selection algorithm that focuses on energy efficiency improvement of a secondary network (SN) in a scenario where other non-cooperating SNs are also using the ... -
Energy efficient line-of-sight millimeter wave small cell backhaul: 60, 70, 80 or 140 GHz?
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialSpectrum scarcity together with high capacity demands make the use of millimeter wave (mmWave) frequencies an interesting alternative for next generation, i.e., fifth generation (5G), networks. Although mmWave is expected ... -
Energy impact of outdoor small cell backhaul in green heterogeneous networks
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialSmall cells (SCs) are expected to be densely deployed during the next few years to enhance the network capacity of future heterogeneous networks (HetNets). Due to their dense deployment, not all SCs are expected to have a ... -
Energy-efficient contention-aware channel selection in cognitive radio Ad-Hoc networks
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we propose a novel contention-aware channel selection algorithm that focuses on throughput and energy efficiency improvement in Cognitive Radio Ad-Hoc Networks (CRAHNs). Specifically, we study the operation ... -
Energy-efficient context-aware user association for outdoor small cell heterogeneous networks
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialTo meet the ever-increasing traffic demands, future cellular networks are about to include a plethora of small cells (SCs), with user equipments (UEs) being able of communicating via multiple bands. Given that SCs are ... -
Energy-efficient user association in cognitive heterogeneous networks
(2014-07)
Article
Accés restringit per política de l'editorialDue to the ever increasing data traffic demands, which are directly connected to increased energy consumption, it becomes challenging for operators to achieve capacity enhancement while limiting their electric bill. To ... -
Exploiting cognition for energy and spectrum efficient wireless networks
(Universitat Politècnica de Catalunya, 2015-11-09)
Tesi
Accés obertThe main objective of this thesis is to propose and evaluate medium access layer algorithms, that will exploit different types of cognition to provide energy and spectrum efficiency enhancement. In particular, two main ... -
Joint uplink and downlink cell selection in cognitive small cell heterogeneous networks
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn 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, ... -
Joint user association and backhaul routing for green 5G mesh millimeter wave backhaul networks
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialWith the advance of fifth generation (5G) networks, network density needs to grow significantly in order to meet the required capacity demands. A massive deployment of small cells may lead to a high cost for providing fiber ... -
Optimal user association, backhaul routing and switching off in 5G heterogeneous networks with mesh millimeter wave backhaul links
(Elsevier, 2018-05-26)
Article
Accés obertNext generation, i.e., fifth generation (5G), cellular networks will provide a significant higher capacity per area to support the ever-increasing traffic demands. In order to achieve that, many small cells need to be ... -
Performance analysis of a cognitive radio contention-aware channel selection algorithm
(2015-07)
Article
Accés obertIn cognitive radio (CR) networks, due to the ever increasing traffic demands and the limited spectrum resources, it is very likely for several secondary networks (SNs) to coexist and opportunistically use the same primary ... -
Perpetual reconfigurable intelligent surfaces through in-band energy harvesting: architectures, protocols, and challenges
(Institute of Electrical and Electronics Engineers (IEEE), 2024-03)
Article
Accés obertReconfigurable intelligent surfaces (RISs) are considered a key enabler of highly energy-efficient 6G and beyond networks. This property arises from the absence of power amplifiers in the structure, in contrast to active ... -
Robust and energy-efficient user association and traffic routing in B5G HetNets
(2022-11)
Article
Accés obertNext-generation cellular networks, i.e., beyond fifth generation (B5G) and sixth generation (6G) networks, aim at significantly increasing capacity by deploying a massive number of small cells (SCs) and leveraging millimeter ... -
Time vs. unit cell splitting for autonomous reconfigurable intelligent surfaces
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertIn this work, we propose a time- and a unit cell-splitting protocol for supplying the energy needs of reconfigurable intelligent surfaces (RISs) through wireless energy harvesting (EH) from information signals. We first ... -
Time-and unit-cell splitting comparison for the autonomous operation of reconfigurable intelligent surfaces
(Institute of Electrical and Electronics Engineers (IEEE), 2023-09)
Article
Accés obertIn this work, we analytically compare the performance of the time-and unit cell-splitting protocols for satisfying the energy needs of reconfigurable intelligent surfaces (RISs) through wireless energy harvesting from ... -
User association in 5G heterogeneous networks with mesh millimeter wave backhaul links
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertFifth generation (5G) wireless networks will target at energy and spectrum efficient solutions to cope with the increasing demands in capacity and energy efficiency. To achieve this joint goal, dense networks of small ... -
WSN4QoL: WSNs for remote patient monitoring in e-Health applications
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialContemporary technologies as implemented in the field of healthcare have provided the everyday clinical practice with a plethora of tools to be used in various settings. In this field, distributed and networked embedded ...
