43 documents found, page 1 of 5

An Economic Assessment of the Contributions of 5G into the Railways and Energy ...

This paper presents an economical assessment of the benefits of introducing 5G technologies into pilot use cases pertaining to the railroad transportation and energy sectors. For each of the pilots, undergone by EFACEC Engenharia e Sistemas and EFACEC Energia, respectively, under the scope of the H2020 5Growth project, the expenditure and benefits expected from introducing 5G capabilities over their on-going op...

Multi-Criteria Dynamic Service Migration for Ultra-Large-Scale Edge Computing N...

Multiaccess edge computing (MEC) service migration is a technology whose key objective is to support ultralow-latency access to services. However, the complex ultralarge-scale edge service migration problem requires extensive research efforts, regarding the foreseen ultradensified edge nodes in 5G and beyond. In this article, we propose a novel dynamic service migration optimization architecture for ultralarge-...

Informação e comunicação: sistemas, tecnologias e ferramentas

O autor parte do bit para o sistema, bem como dos dados para a sua manipulação em rede até à interconexão digital dos objetos quotidianos com a Internet, expressa no Conceito Internet das Coisas (Internet of Things - IoT), proposto em 1999 por Kevin Ashton. Sendo uma extensão da Internet, é a IoT que, no fundo, permite ligar os objetos do dia-a-dia à Internet, conectando dispositivos, sistemas e serviços, atrav...

A hybrid SDN solution for mobile networks

The adoption of Software Defined Networking (SDN) has encountered resistance mainly due to its disruptive nature for current deployed networks. In order to allow a smoother transition of SDN into production networks and take advantage of SDN’s characteristics, a mix of SDN with traditional networks, or Hybrid SDN Networks, can be deployed, paving the path to fully SDN-capable networks. The introduction of SDN a...

Assessing sheep behavior through low-power microcontrollers in smart agricultur...

Automatic animal monitoring can bring several advantages to the livestock sector. The emergence of low-cost and low-power miniaturized sensors, together with the ability of handling huge amounts of data, has led to a boost of new intelligent farming solutions. One example is the SheepIT solution that is being commercialized by iFarmtec. The main objectives of the solution are monitoring the sheep’s posture whil...

Safeguarding from abuse by IoT vendors: edge messages verification of cloud-ass...

The fact that most IoT solutions are provided by 3rd-parties, along with the pervasiveness of the collected data, raises privacy and security concerns. There is a need to verify which data is being sent to the 3rd-party, as well as preventing those channels from becoming an exploitation avenue. We propose to use existing API definition languages to create contracts which define the data that can be transmitted,...

Cloud-centric networking using virtualization and resource sharing

A network service for preventing data leakage from IoT cloud-assisted equipment

The fact that most IoT solutions are provided by third parties, along with the pervasiveness of the collected data, raises privacy and security concerns. There is a need to verify which data is being sent to the third party, as well as preventing those channels from becoming an exploitation avenue. We propose to use existing API definition languages to create contracts which define the data that can be transmit...

Network slicing security: challenges and directions

Network slicing emerges as a key technology in next generation networks, boosted by the integration of software‐defined networking and network functions virtualization. However, while allowing resource sharing among multiple tenants, such networks must also ensure the security requirements needed for the scenarios they are employed. This letter presents the leading security challenges on the use of network slic...

Dynamic network slice resources reconfiguration in heterogeneous mobility envir...

This paper proposes a framework that optimizes network slicing provisioning in over‐the‐top (OTT) scenarios, by reducing occupied resources of slices from where the User Equipment (UE) handovers from. To achieve this, the framework leverages an existing Software Defined Networking (SDN)‐based UE virtualization scheme, which allows to instantiate in the cloud a representation of the physical device and its curre...