Now showing items 13-24 of 97

    • Network-aware Placement Optimization for Edge Computing infrastructure under 5G 

      Santoyo González, Alejandro; Cervelló Pastor, Cristina (Institute of Electrical and Electronics Engineers (IEEE), 2020-03-20)
      Article
      Open Access
      Edge Computing has grown into a key solution for coping with the stringent latency requirements of 5G scenarios. Nevertheless, the edge node placement problem raises critical concerns regarding deployment and operational ...
    • An energy-efficient distributed dynamic bandwidth allocation algorithm for Passive Optical Access Networks 

      Khalili, Hamzeh; Rincón Rivera, David; Sallent Ribes, Sebastián; Piney da Silva, José Ramón (2020-03-13)
      Article
      Open Access
      The rapid deployment of passive optical access networks (PONs) increases the global energy consumption of networking infrastructure. This paper focuses on the minimization of energy consumption in Ethernet PONs (EPONs). ...
    • Train-scheduling optimization model for railway networks with multiplatform stations 

      Garrisi, Gianmarco; Cervelló Pastor, Cristina (2019-12-28)
      Article
      Open Access
      This paper focuses on optimizing the schedule of trains on railway networks composed of busy complex stations. A mathematical formulation of this problem is provided as a Mixed Integer Linear Program (MILP). However, the ...
    • Self-healing and SDN: bridging the gap 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2019-09-03)
      Article
      Open Access
      Achieving high programmability has become an essential aim of network research due to the ever-increasing internet traffic. Software-Defined Network (SDN) is an emerging architecture aimed to address this need. However, ...
    • A framework for the joint placement of edge service infrastructure and User Plane Functions for 5G 

      Leyva Pupo, Irian; Santoyo González, Alejandro; Cervelló Pastor, Cristina (Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-14)
      Article
      Open Access
      Achieving less than 1 ms end-to-end communication latency, required for certain 5G services and use cases, is imposing severe technical challenges for the deployment of next-generation networks. To achieve such an ambitious ...
    • Squatting and kicking model evaluation for prioritized sliced resource management 

      Hamouda, Ahmed Mohamed Abdelaty Elmekkawi; Hesselbach Serra, Xavier; Piney da Silva, José Ramón (2019-11-15)
      Article
      Restricted access - publisher's policy
      Effective management and allocation of resources remains a challenging paradigm for future large-scale networks such as 5G, especially under a network slicing scenario where the different services will be characterized by ...
    • Evaluating impacts of traffic migration and virtual network functions consolidation on power aware resource allocation algorithms 

      Hejja, Khaled A. M.; Hesselbach Serra, Xavier (Elsevier, 2019-12-01)
      Article
      Open Access
      Power consumption minimization and speed of solving the resource allocation problem on cloud datacenters adopting network function virtualization architecture are among the hot topics for future Internet networks. Therefore, ...
    • Offline and online power aware resource allocation algorithms with migration and delay constraints 

      Hejja, Khaled A. M.; Hesselbach Serra, Xavier (2019-07-20)
      Article
      Open Access
      In order to handle advanced mobile broadband services and Internet of Things (IoT), future Internet and 5G networks are expected to leverage the use of network virtualization, be much faster, have greater capacities, provide ...
    • ETDP: enhanced topology discovery protocol for software-defined networks 

      Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
      Article
      Open Access
      Discovering network elements in a dynamic and optimized manner and being able to contend with ever-growing traffic is a key requirement for current networking environments. In software-defined networks (SDNs), the controller ...
    • A LoRaWAN testbed design for supporting critical situations: prototype and evaluation 

      Navarro Ortiz, Jorge; Ramos Muñoz, Juan J.; López Soler, Juan M.; Cervelló Pastor, Cristina; Catalán Cid, Marisa (2019-01-01)
      Article
      Open Access
      The Internet of Things is one of the hottest topics in communications today, with current revenues of $151B, around 7 billion connected devices, and an unprecedented growth expected for next years. A massive number of ...
    • Latency-aware cost optimization of the service infrastructure placement in 5G networks 

      Santoyo González, Alejandro; Cervelló Pastor, Cristina (2018-07-15)
      Article
      Open Access
      Under 5G use case scenarios latency is a main challenge that must be addressed, since mission critical environments are mostly delay sensitive. To achieve this goal, the service infrastructure placement optimization is ...
    • An NFV-based energy scheduling algorithm for a 5G enabled fleet of programmable unmanned aerial vehicles 

      Tipantuña Tenelema, Christian José; Hesselbach Serra, Xavier; Sánchez Aguero, Víctor; Valera Pintor, Francisco; Vidal Fernández, Iván; Nogales Dorado, Borja (2019-01-01)
      Article
      Open Access
      The fifth generation of mobile networks (5G) is expected to provide diverse and stringent improvements such as greater connectivity, bandwidth, throughput, availability, improved coverage, and lower latency. Considering ...