A5066205937- Software-Defined Networks and 5G
- Advanced Optical Network Technologies
- Network Traffic and Congestion Control
- Caching and Content Delivery
- Software System Performance and Reliability
- Interconnection Networks and Systems
- Network Packet Processing and Optimization
- IoT and Edge/Fog Computing
- Cloud Computing and Resource Management
- Network Security and Intrusion Detection
- Optical Network Technologies
- Molecular Communication and Nanonetworks
- Network Time Synchronization Technologies
- Peer-to-Peer Network Technologies
- Mobile Ad Hoc Networks
- Wireless Body Area Networks
- Telecommunications and Broadcasting Technologies
- Advanced MIMO Systems Optimization
- Cooperative Communication and Network Coding
- Opportunistic and Delay-Tolerant Networks
- Advanced biosensing and bioanalysis techniques
- Photonic and Optical Devices
- Distributed systems and fault tolerance
- Blockchain Technology Applications and Security
- Supercapacitor Materials and Fabrication
Ghent University
2016-2025
Ghent University Hospital
2018-2023
Imec the Netherlands
2017-2023
Electronics and Telecommunications Research Institute
2017-2018
iMinds
2014-2017
Information Technology Laboratory
2017
Recent developments in nanotechnology herald nanometer-sized devices expected to bring light a number of groundbreaking applications. Communication with and among nanodevices will be needed for unlocking the full potential such As traditional communication approaches cannot directly applied nanocommunication, several alternative paradigms have emerged. Among them, electromagnetic nanocommunication terahertz (THz) frequency band is particularly promising, mainly due breakthrough novel...
In conventional large-scale networks, creation and management of network services are costly complex tasks that often consume a lot resources, including time manpower. Network softwarization function virtualization have been introduced to tackle these problems, aiming at decreasing costs complexity implementing new services, maintaining the implemented managing available resources in service provisioning platforms underlying infrastructures. To experience full potential approaches,...
Network Service Chaining (NSC) is a service concept which promises increased flexibility and cost-efficiency for future carrier networks. The two recent developments, Function Virtualization (NFV) Software-Defined Networking (SDN), are opportunities providers to simplify the chaining provisioning process reduce cost (in CAPEX OPEX) while introducing new services as well. One of challenging tasks regarding NFV-based efficiently map them components physical network based on...
Mininet is a great prototyping tool which combines existing SDN-related software components (e.g., Open vSwitch, OpenFlow controllers, network namespaces, cgroups) into framework, can automatically set up and configure customized testbeds scaling to hundreds of nodes. Standing on the shoulders Mininet, we implement similar system called ESCAPE, be used develop test various service chaining architecture. Our framework incorporates Click for implementing Virtual Network Functions (VNF),...
Abstract The Service Programming and Orchestration for Virtualised Software Networks (SONATA) project targets both the flexible programmability of software networks optimisation their deployments by means integrating Development Operations in order to accelerate industry adoption reduce time‐to‐market networked services. SONATA supports network function chaining orchestration, making service platforms modular easier customise needs different providers, introduces a specialised model...
The virtualization of compute and network resources enables an unseen flexibility for deploying services. A wide spectrum emerging technologies allows ever-growing range orchestration possibilities in cloud-based environments. But this context it remains challenging to rhyme dynamic cloud configurations with deterministic performance. service operator must somehow map the performance specification Service Level Agreement (SLA) adequate resource allocation virtualized infrastructure. We...
End-to-end service delivery often includes transparently inserted Network Functions (NFs) in the path. Flexible chaining will require dynamic instantiation of both NFs and traffic forwarding overlays. Virtualization techniques compute networking, like cloud Software Defined Networking (SDN), promise such flexibility for providers. However, patching together existing network control mechanisms necessarily puts one over above, e.g., OpenDaylight under an OpenStack controller. We designed...
SDN and NFV are two paradigms that introduce unseen flexibility in telecom networks. Where previously services were provided by dedicated hardware associated (vendor-specific) protocols, enables to control networks through specialized software running on controllers. highly optimized packet-processing network functions run generic/multi-purpose such as x86 servers. Although the possibilities of well-known, concrete orchestration architectures still under design few prototype validations...
NFV and SDN transform network management operation into agile development tasks. They involve software artefacts, which are managed deployed as composite services using DevOps principles. Those softwarized networks rely on complex technology stacks, starting with low-level virtualization technologies ranging up to machine-learning-based orchestration solutions. One of the main challenges in those environments is verify that functions operate correctly meet quality goals set by stakeholders...
The rise of cloud services poses considerable challenges on the control both and carrier network infrastructures. While traditional telecom rely rather static processes (often involving manual steps), wide adoption mobile devices including tablets, smartphones wearables introduce previously unseen dynamics in creation, scaling withdrawal new services. These phenomena require optimal flexibility characterization services, as well orchestration infrastructure. This paper proposes a unified...
Mininet is a great prototyping tool which combines existing SDN-related software components (e.g., Open vSwitch, OpenFlow controllers, network namespaces, cgroups) into framework, can automatically set up and configure customized testbeds scaling to hundreds of nodes. Standing on the shoulders Mininet, we implement similar system called ESCAPE, be used develop test various service chaining architecture. Our framework incorporates Click for implementing Virtual Network Functions (VNF),...
In pursuit of a flexible, resource efficient and high- performant 5G infrastructure, many operators, vendors research consortia are currently developing, testing integrating their NFV platform with associated management orchestration (MANO) functionality. The SONATA follows micro-service design, which involves tight coupling between an SDK, monitoring MANO functionality, targeting secure stable software foundation. This experience paper gives thorough overview on the encountered challenges,...
Network virtualization and softwarizing network functions are trends aiming at higher efficiency, cost reduction agility. They driven by the evolution in Software Defined Networking (SDN) Function Virtualization (NFV). This shows that software will play an increasingly important role within telecommunication services, which were previously dominated hardware appliances. Service providers can benefit from this, as it enables faster introduction of new telecom combined with agile set...
Recent developments in nanotechnology herald nanometer-sized devices expected to bring light a number of groundbreaking applications. Communication with and among nanodevices will be needed for unlocking the full potential such As traditional communication approaches cannot directly applied nanocommunication, several alternative paradigms have emerged. Among them, electromagnetic nanocommunication terahertz (THz) frequency band is particularly promising, mainly due breakthrough novel...
Abstract Proprietary communication technologies for time-critical in industrial environments are being gradually replaced by Time-sensitive Networking (TSN)-enabled Ethernet. Furthermore, attempts have been made to bring TSN features into wireless networks so that the flexibility of can be utilized, and end-to-end timings Time-Triggered (TT) streams guaranteed. Given a mixed wired-wireless network, scheduling problem should solved set TT stream requests. In this paper, we formulate no-wait...
A highly reliable set up of Management and Orchestration (MANO) functionality is crucial for telecom operators in order to support demanding NFV-powered services such as elastic emergency or security services, other applications requiring fast, dynamic (re-) provisioning processes. NFV MANO controls the entire life cycle from instantiation configuration monitoring, migrating, scaling terminating them. In this paper, we introduce tunable scalable mechanisms that provide with high availability...
Network Function Virtualization (NFV) enables to implement network functions in software, high-speed packet processing which traditionally are dominated by hardware implementations. Virtualized Functions (NFs) may be deployed on generic-purpose servers, e.g., datacenters. The latter flexibility and scalability previously were only possible for web services cloud platforms. merit of NFV is challenged control challenges related the selection NF implementations, discovery reservation sufficient...
Standards development organizations (SDOs) exist to assure the of consensus- based, quality standards. These formal standards are needed in telecommunications market achieve functional interoperability. The standardization process takes years, and then a vendor still needs implement resulting standard product. This prevents service providers (SPs) who willing venture into new domains from doing so at fast pace. With software-defined networking (SDN) network function virtualization (NFV),...
End-to-end service delivery often includes transparently inserted Network Functions (NFs) in the path. Flexible chaining will require dynamic instantiation of both NFs and traffic forwarding overlays. Virtualization techniques compute networking, like cloud Software Defined Networking (SDN), promise such flexibility for providers. However, patching together existing network control mechanisms necessarily puts one over above, e.g., OpenDaylight under an OpenStack controller. We designed...