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  • 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, Christian; 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 ...

  • Online power aware coordinated virtual network embedding with 5G delay constraint 

    Hejja, Khaled; Hesselbach Serra, Xavier (2018-12-15)
    Article
    Open Access
    Solving virtual network embedding problem with delay constraint is a key challenge to realize network virtualization for current and future 5G core networks. It is an NP-Hard problem, composed of two sub-problems, one for ...

  • Nano-networks communication architecture: Modeling and functions 

    Galal, Akram; Hesselbach Serra, Xavier (2018-09-01)
    Article
    Open Access
    Nano-network is a communication network at the Nano-scale between Nano-devices. Nano-devices face certain challenges in functionalities, because of limitations in their processing capabilities and power management. Hence, ...

  • An online algorithm for dynamic NFV placement in cloud-based autonomous response networks 

    Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana; Grosso, P. (2018-05-15)
    Article
    Open Access
    Autonomous response networks are becoming a reality thanks to recent advances in cloud computing, Network Function Virtualization (NFV) and Software-Defined Networking (SDN) technologies. These enhanced networks fully ...

  • Energy efficiency and network performance: A reality check in SDN-based 5G systems 

    Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-12-14)
    Article
    Open Access
    The increasing power consumption and related environmental implications currently generated by large data networks have become a major concern over the last decade. Given the drastic traffic increase expected in 5G dense ...

  • Self-healing topology discovery protocol for software defined networks 

    Ochoa Aday, Leonardo; Cervelló Pastor, Cristina; Fernández Fernández, Adriana (2018-03-19)
    Article
    Open Access
    This letter presents the design of a self-healing protocol for automatic discovery and maintenance of the network topology in Software Defined Networks (SDN). The proposed protocol integrates two enhanced features (i.e. ...

  • A multi-objective routing strategy for QoS and energy awareness in software-defined networks 

    Fernández Fernández, Adriana; Cervelló Pastor, Cristina; Ochoa Aday, Leonardo (2017-08-21)
    Article
    Open Access
    Energy consumption is a key concern in the deployment and operation of current data networks, for which Software-Defined Networks (SDN) have become a promising alternative. Although several works have been proposed to ...

  • Evaluation of bone formation in calcium phosphate scaffolds with mu CT-method validation using SEM 

    Lewin, Susanne; Barba Martí, Antonio; Persson, Cecilia; Franch Serracanta, Jordi; Ginebra Molins, Maria Pau; Ohman, Caroline (2017-12-01)
    Article
    Open Access
    Covenantee:  Universitat Autònoma de Barcelona. Departament de Medicina i Cirurgia Animal
    There is a plethora of calcium phosphate (CaP) scaffolds used as synthetic substitutes to bone grafts. The scaffold performance is often evaluated from the quantity of bone formed within or in direct contact with the ...

  • A proposal for an SDN-based SIEPON architecture 

    Hamzeh, Khalili; Sallent Ribes, Sebastián; Piney da Silva, José Ramón; Rincón Rivera, David (2017-07-03)
    Article
    Restricted access - publisher's policy
    Passive Optical Network (PON) elements such as Optical Line Terminal (OLT) and Optical Network Units (ONUs) are currently managed by inflexible legacy network management systems. Software-Defined Networking (SDN) is a new ...

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