Towards Software-Defined Tactical Networks: Experiments and Challenges for Control Overhead

Software-defined Tactical Networks (SDTNs) have the potential to host intelligent mechanisms to manage ever-changing communication scenarios in networks with heterogeneous radio links. However, standard SDN protocols, like Open-Flow, were designed for non-mobile, reliable, high throughput, and low latency networks. This fact motivated the...

Radio frequency reflectometry in silicon-based quantum dots

FPGA-based Deep Learning Accelerator for RF Applications

A key obstacle within the design of cognitive radios has always been the spectrum sensing component that implements the function automatic modulation classification (AMC). With the transition to software-defined radios (SDRs) followed by the introduction of field-programmable gate arrays (FPGAs) and deep learning (DL), it becomes possible to...

A Hybrid Flow/Packet Level Model for Predictive Service Function Chain Selection in SDN

This paper is motivated by recent developments in SDN and NFV whereby service functions, distributed over a centralised controlled network, are connected to form a service function chain (SFC). Upon arrival of a new service request a decision has to be made to which one of SFCs the request must be routed. This decision is based on (1) actual...

Quantum Dots in an InSb Two-Dimensional Electron Gas

Indium-antimonide (InSb) two-dimensional electron gases (2DEGs) have a unique combination of material properties: high electron mobility, a strong spin-orbit interaction, a large Landé g factor, and a small effective mass. This makes them an attractive platform to explore a variety of mesoscopic phenomena ranging from spintronics to topological...

Dynamic priority assignment for SLA compliance in service function chains

In service function chaining, data flows from a particular application or user travel along a pre-defined sequence of network functions. Appropriate service function chaining resource allocation is required to comply with the service level required by the application. In this paper, we introduce a dynamic priority assignment for flows that...

Waveforms: Opwarming van koud staal of de oplossing voor interoperabiliteit?

Defensie staat aan de vooravond van de modernisering van de huidige tactische communicatiesystemen, waaronder het vervangen van de oude tactische radio’s door een nieuwe generatie middelen (Foxtrot/Tactische Draadloze Connectiviteit). Nederlandse eenheden moeten tot op laag-tactische niveaus met coalitiepartners kunnen optreden en met hen op dat...

Facilitating ICN deployment with an extended open flow protocol

Named-Data Networking (NDN) is proposed as an approach to evolve the Internet infrastructure from a host- to an informationcentric (ICN) approach, which is better suited to the current usage of the Internet. However, the deployment of a global NDN-based Internet is still a long way out of reach. The most likely scenario for a global NDN network...

Software Defined Networking to support IP address mobility in future LTE network

Flow termination signaling in the centralized pre-congestion notification architecture

Pre-congestion notification (PCN) protects inelastic traffic by using feedback on network link loads on and acting upon this accordingly. These actions comprise to admission control and termination of flows. Two PCN architectures have been defined by IETF: the centralized and decentralized PCN architecture. The decentralized PCN architecture has...

Facilitating ICN deployment with an extended open flow protocol

Named-Data Networking (NDN) is proposed as an approach to evolve the Internet infrastructure from a host- to an informationcentric (ICN) approach, which is better suited to the current usage of the Internet. However, the deployment of a global NDN-based Internet is still a long way out of reach. The most likely scenario for a global NDN network...

Software-Defined Underwater Acoustic Modems Historical Review and the NILUS Approach

Flexible/adaptive acoustic modems that are reprogrammable/reconfigurable at all layers of the communication stack, either by a user or by means of autonomous decisions, are considered as an important enabler for interoperability and cognitive networking in the underwater domain. In this paper, we review the existing literature on software...

JGZ-richtlijn Psychosociale Problemen

Vanaf 1 december 2016 kan de JGZ gebruik maken van de vernieuwde JGZ-richtlijn Psychosociale problemen. De voorgaande richtlijn uit 2008 is door richtlijnontwikkelaar TNO volledig aangepast naar veranderingen in de praktijk en wetenschap, met financiële ondersteuning van ZonMw. De inleiding van deze richtlijn geeft informatie over [a] taken van...

Analysis of the signal transfer and folding in N-path filters with a series inductance

N-path filters exploiting switched-series-R-C networks can realize high-Q blocking-tolerant band-pass filters. Moreover, their center frequency is flexibly programmable by a digital clock. Unfortunately, the time variant nature of these circuits also results in unwanted signal folding. This paper proves analytically that folding can be reduced...

ANFO and TNT anti-vehicle mine blast: Experimental and numerical observations

Anti-vehicle (AV) mines and Improvised Explosive Devices (IEDs) pose a major threat in recent and current missions. In the latest operational theatres of Iraq and Afghanistan they have been responsible for a significant proportion of all casualties. Understanding both the characteristics and strength of the blast loading from these devices is...

Software-defined open-architecture modems: Historical review and the NILUS approach

Flexible/adaptive modems that are reprogramma-ble/reconfigurable at all layers of the communication stack, either by a user or by means of autonomous decisions, are considered as an important enabler for interoperability and cognitive networking in the underwater domain. This paper reviews existing literature on software-defined open...

Toxicology of chemical mixtures: Challenges for today and the future

A major challenge for the toxicologist involved in safety evaluation of chemical mixtures is to test the hypothesis that as a rule exposure to mixtures of chemicals at (low) non-toxic doses of the individual chemicals is of no health concern. A series of repeated dose studies in rats with defined mixtures of chemicals with the same or different...

Multi-locus control of MLC reactions in rhesus monkeys

The genetic basis for MLC reactivity in rhesus monkeys was further investigated. Cells from an intra-RhLA recombinant monkey were MLC reactive with those of an SD-identical sib and with each of two sets of homozygous typing cells carrying either paternal haplotype. Also, cells from a pair of RhLA- identical sibs reacted in MLC with each other,...