Bart Spinnewyn

University of Antwerp | UA · Department of Mathematics and Computer Science

Recently, network services are increasingly connecting computational elements within and across datacenters. In the Network Functions Virtualization (NFV) environment, to successfully orchestrate a network service, first a VNF-Forwarding Graph (VNF-FG) must be composed that realizes the required functionality. Second, this VNF-FG must be embedded o...

In the Network Functions Virtualization (NFV) environment, to successfully orchestrate a network service, first a Virtual Network Function-Forwarding Graph (VNF-FG) must be composed that realizes the required functionality. Second, this VNF-FG must be embedded onto the infrastructure, that is increasingly becoming heterogeneous. To avoid wasting pr...

Network Function Virtualization (NFV) is a promising way for service providers to improve configurability of the offered network services. First, Network Functions (NFs) and their corresponding flows can be embedded in the Substrate Network (SN) in an automated way. Second, the modularity offered by the description of a service as a composition of...

The chapter summarizes activities of COST IC1304 ACROSS European Project corresponding to traffic management for Cloud Federation (CF). In particular, we provide a survey of CF architectures and standardization activities. We present comprehensive multi-level model for traffic management in CF that consists of five levels: Level 5 - Strategies for...

Cloud providers rely on fault-tolerance mechanisms to realize high-availability services on best-effort infrastructure. Service replication limits the data-loss caused by failure, at the expense of additional operational costs. Recently, with the advent of Mobile Edge Computing, cloud environments are becoming increasingly heterogeneous and dynamic...

Since its introduction in 2012, telecommunications operators have been applying the Network Function Virtualization principle to their core infrastructure, leading to more agile and cost-efficient deployments. While these Virtualized Network Functions (VNFs) are traditionally implemented using Virtual Machines (VMs), efforts are starting to shift t...

The recent increase of connected devices has triggered countless Internet-of-Things applications to emerge. By using the Time-Slotted Channel Hopping (TSCH) mode of the IEEE 802.15.4e MAC layer, wireless multi-hop networks enable highly reliable and low-power communication, supporting mission-critical and industrial applications. TSCH uses channel...

The strong uptake of cloud computing has led to an important increase of mission-critical applications being placed on cloud environments. Those applications often require high levels of availability coupled with guarantees on a minimum level of throughput and a maximum level of response time. To achieve the lowest response time possible, clouds ar...

Currently a growing number of powerful devices join the Internet composing a world of smart devices, or things in the Internet of Things (IoT) perspective, significantly impacting the global traffic. There are also more and more cloud providers offering IoT-specific services, since cloud computing has the potential to satisfy IoT needs such as hidi...

Cloud computing offers an attractive platform to provide resources on-demand, but currently fails to meet the corresponding latency requirements for a wide range of Internet of Things (IoT) applications. In recent years efforts have been made to distribute the cloud closer to the user environment, but they were typically limited to the fixed networ...

Using garments as a platform for electronic sensing and communication systems opens up a wide range of novel and exciting applications. By carefully tailoring the antenna properties and by adopting a dedicated design strategy, a robust wearable antenna system can be obtained onto which all necessary electronics are integrated. In this contribution,...

New wireless wearable monitoring systems integrated in professional garments require a high degree of reliability and autonomy. Active textile antenna systems may serve as platforms for body-centric sensing, localization and wireless communication systems, in the meanwhile being comfortable and invisible to the wearer. New design strategies combine...

A novel, low-cost, low-weight, wearable Doppler radar system composed of textile materials and capable of detecting moving objects behind a barrier is presented. The system operates at 2.35 GHz and is integrable into garments, making it well-suited for usage in difficult to access terrain, such as disaster areas or burning buildings. Wearability is...