Journal articles: Recent submissions
Now showing items 41-60 of 61
A tool to design interactive characters based on embodied cognition
Creating interactive characters is one of the most challenging tasks of videogame design. In order to facilitate such an endeavour, we introduce a decisional and behaviour synthesis architecture integrated in the game ...
On the Need of Joint Bandwidth and NFV Resource Orchestration: a Realistic 5G Access Network Use Case
5G envisages a "hyper-connected society" where an enormous number of devices are inter-connected anywhere and at any time. Cloud-enabled radio access networks (RAN) where intelligence is placed in conjunction with the radio ...
Creating and broadcasting video-based multi-platform experiences
The majority of TV consumers now watch TV programs in a multi-display environment [1]. Second screens –most often smartphones - are generally used to check information not directly related to the events in the TV content being ...
Connected OFCity: Technology Innovations for a Smart City Project
Around the world, municipalities have been making substantial investments into broadband access infrastructure to accelerate the build-out of an urban phenomenon that has become known as a smart or connected city. At the ...
Introducing Mobile Edge Computing Capabilities through Distributed 5G Cloud Enabled Small Cells
Current trends in broadband mobile networks are addressed towards the placement of different capabilities at the edge of the mobile network in a centralised way. On one hand, the split of the eNB between baseband processing ...
Has Time Come to Switch From Duty-Cycled MAC Protocols to Wake-Up Radio for Wireless Sensor Networks?
Duty-cycled Medium Access Control (MAC) protocols certainly improve the energy efficiency of wireless networks. However, most of these protocols still suffer from severe degrees of overhearing and idle listening. These two ...
The emergence of operator-neutral small cells as a strong case for cloud computing at the mobile edge
Small cells have emerged as a useful tool for supporting increased network capacity through network densification, but they can also be used to support edge cloud computing services. In this paper, we provide a preview of ...
DevOps for network function virtualisation: An architectural approach
The Service Programming and Orchestration for Virtualised Software Networks (SONATA) project targets both the flexible programmability of software networks and the optimisation of their deployments by means of integrating ...
Reducing Complexity of Virtual Machine Networking
Virtualization is an enabling technology that improves scalability, reliability, and flexibility. Virtualized networking is tackled by emulating or paravirtualizing network interface cards. This approach, however, leads ...
Experimental Evaluation of Congestion Control for CoAP Communications without Reliability
The Constrained Application Protocol (CoAP) has been designed by the Internet Engineering Task Force (IETF) for Internet of Things (IoT) communications. CoAP is a lightweight, request/response-based RESTful protocol that ...
5G-XHaul: a converged optical and wireless solution for 5G transport networks
The common European Information and Communications Technology sector vision for 5G is that it should leverage on the strengths of both optical and wireless technologies. In the 5G context, a wide spectra of radio access ...
On-demand sensor node wake-up using solar panels and visible light communication
To significantly reduce, or eliminate completely, the energy waste caused by the standby (idle) mode of wireless sensor nodes, we propose a novel on-demand wake-up system, which allows the nodes to be put into sleep mode ...
CoAP Congestion Control for the Internet of Things
CoAP is a lightweight RESTful application layer protocol devised for the IoT. Operating on top of UDP, CoAP must handle congestion control by itself. The core CoAP specification defines a basic congestion control mechanism, ...
Technology pillars in the architecture of future 5G mobile networks: NFV, MEC and SDN
This paper analyzes current standardization situation of 5G and the role network softwarization plays in order to address the challenges the new generation of mobile networks must face. This paper surveys recent documentation ...
Hierarchical, virtualized and distributed intelligence 5G architecture for low‐latency and secure applications
CHARISMA aims to tackle low-latency and end-to-end security for converged fixed/wireless 5G networks in order to meet the complex demands of emerging business paradigms, such as Smart Cities, eHealth and Industry 4.0. In ...
A recursive orchestration and control framework for large-scale, federated SDN experiments: the FELIX architecture and use cases
Programmable networks are a substantial part of current R&D on future internet (FI) in Europe and worldwide, with considerable impact generated by large-scale test bed infrastructures. In such test beds, researchers validate ...
CoCoA+: An advanced congestion control mechanism for CoAP
The Constrained Application Protocol (CoAP) has been designed by the Internet Engineering Task Force (IETF) for Internet of Things (IoT) devices. Due to the limited radio channel capacities and hardware resources of such ...
Enabling always on service discovery: Wifi neighbor awareness networking
There is untapped potential in the Wi-Fi radios embedded in our smartphone and tablet devices. In this article we introduce the Wi-Fi Neighbor Awareness Networking technology being standardized in the WiFi Alliance under ...
A Genetic Algorithm for VNF Provisioning in NFV-enabled Cloud/MEC RAN architectures
5G technologies promise to bring new network and service capacities and are expected to introduce significant architectural and service deployment transformations. The Cloud-Radio Access Networks (C-RAN) architecture, ...
A Proxy Design to Leverage the Interconnection of CoAP Wireless Sensor Networks with Web Applications
In this paper, we present the design of a Constrained Application Protocol (CoAP) proxy able to interconnect Web applications based on Hypertext Transfer Protocol (HTTP) and WebSocket with CoAP based Wireless Sensor Networks. ...
