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Bhattacharjee, A.K. (author), Cecconello, S. (author), Kuipers, F.A. (author), Smaragdakis, G. (author)
To avoid exploitation of known vulnerabilities, it is standard security practice to not disclose any model information regarding the antennas used in cellular infrastructure. However, in this work, we show that end-user devices receive enough information to infer, with high accuracy, the model-family of antennas. We demonstrate how low-cost...
conference paper 2024
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Hou, Biao (author), Yang, Song (author), Kuipers, F.A. (author), Jiao, Lei (author), Fu, Xiaoming (author)
Recent years have witnessed video streaming grad- ually evolve into one of the most popular Internet applications. With the rapidly growing personalized demand for real-time video streaming services, maximizing their Quality of Experience (QoE) is a long-standing challenge. The emergence of the server- less computing paradigm has potential to...
conference paper 2023
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Zapletal, A. (author), Kuipers, F.A. (author)
The conventional definition of fairness in congestion control is flow rate fairness. However, Internet users typically care about flow completion times (FCTs) and flow rate fairness does not lead to equitable FCTs for different users. Therefore, we reconsider what it means for congestion control to be fair and posit a novel stance on fairness:...
conference paper 2023
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Ji, C. (author), Kuipers, F.A. (author)
To cater to constantly changing network needs, enabling stateful reconfiguration of Network Functions (NFs) is crucial. Recently, there has been growing interest in offloading NFs to programmable network devices. Unfortunately, it is currently not possible to maintain the full state of NFs during a switch reconfiguration without consuming...
conference paper 2023
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Clarke, Nicholas (author), Kuipers, M.C. (author)
This paper continues on from a recently completed research project on shared built heritage of South Africa and the Netherlands from 1902–61, mainly created by Dutch–born architects. It focuses on two pioneering female architects in South Africa, Gertruida Brinkman (1906–77, née Siemerink) and Eleanor Ferguson (also Stakesby–Lewis; 1900–82),...
conference paper 2022
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Oostenbrink, J. (author), Kuipers, F.A. (author)
In this paper, we study the risk of earthquakes to global Internet infrastructure, namely Internet eXchange Point (IXP) facilities. Leveraging the CAIDA IXPs dataset and publicly available earthquake models and hazard computation tools, we find that more than 50% of the facilities have at least a 2% probability of experiencing potentially...
conference paper 2022
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Barczyk, R.T. (author), Parappurath, N. (author), Arora, S. (author), Bauer, T.A. (author), Kuipers, L. (author), Verhagen, E. (author)
We study the signatures of topological light confinement in the leakage radiation of two-dimensional topological photonic crystal cavities that feature the quantum spin Hall effect at telecom wavelengths. The mode profiles in real and momentum space are retrieved using far field imaging and Fourier spectropolarimetry. We examine the scaling...
conference paper 2022
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Turkovic, B. (author), Nijhuis, S.H. (author), Kuipers, F.A. (author)
The concept of network slicing enables operators to provision multiple virtual networks on top of a single (shared) physical infrastructure. Adding elasticity to slicing, i.e., the ability to on-demand provision/release dedicated network resources, improves resource utilization. However, efficiently allocating and scaling slice resources,...
conference paper 2021
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Turkovic, B. (author), Biswal, S. (author), Vijay, A. (author), Hüfner, A.E. (author), Kuipers, F.A. (author)
Networks often need to concurrently process mil- lions of flows with varying Quality-of-Service (QoS) require- ments. Doing so by deploying flow-specific rules at network nodes would require significant memory and overhead.<br/>In this paper, we take a fundamentally different approach, called P4QoS, by embedding QoS requirements in the packets...
conference paper 2021
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He, Nan (author), Yang, S. (author), Li, Fan (author), Trajanovski, S. (author), Kuipers, F.A. (author), Fu, Xiaoming (author)
The efficacy of Network Function Virtualization (NFV) depends critically on (1) where the virtual network functions (VNFs) are placed and (2) how the traffic is routed. Unfortunately, these aspects are not easily optimized, especially under time-varying network states with different quality of service (QoS) requirements. Given the importance of...
conference paper 2021
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Oostenbrink, J. (author), Kuipers, F.A. (author)
Network outages have significant economic and societal costs. While network operators have become adept at managing smaller failures, this is not the case for larger, regional failures such as natural disasters. Although it is not possible, and certainly not economic, to prevent all potential disaster damage and impact, we can reduce their...
conference paper 2021
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Shiferaw, Yonatan (author), Arora, Apoorva (author), Kuipers, F.A. (author)
LoRaWAN has emerged as a popular IoT commu- nications technology. It comes with three classes of operation: A, B, and C. Although many IoT use-cases, like Firmware-over- the-Air updates, require multicast, Class A cannot be used for that purpose. Class C can, but consumes a lot of energy. This leaves Class B. In this paper, we investigate Class...
conference paper 2020
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Turkovic, B. (author), Oostenbrink, J. (author), Kuipers, F.A. (author), Keslassy, Isaac (author), Orda, Ariel (author)
F1ows that have exceeded a given percentage of the last sliding window of N packets, denoted as heavy-hitter flows, require special handling, since they may disrupt the service of other flows or may be indicative of malicious traffic. However, even when equipped with a programmable switch, it is unclear how to detect heavy hitters on a per...
conference paper 2020
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Polachan, Kurian (author), Turkovic, B. (author), Prabhakar, T. V. (author), Singh, Chandramani (author), Kuipers, F.A. (author)
“Tactile internet” refers to a network that can support real-time interactions between human operators and remote cyber-physical systems as if they were near to each other. For this, the network should support ultra-low latency communication, often referred to as the 1ms challenge. However, we observe that network requirements, such as latency...
conference paper 2020
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Turkovic, B. (author), Kuipers, F.A. (author)
Congestion control algorithms are usually developed in isolation without thoroughly investigating their co-existence and interactions with other protocols and/or congestion control algorithms. As a result, flows using different algorithms and/or having different Round-Trip Times may overpower each other, resulting in unfair resource distribution...
conference paper 2020
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Kozlowski, W. (author), Kuipers, F.A. (author), Wehner, S.D.C. (author)
The quantum technology revolution brings with it the promise of a quantum internet. A new --- quantum --- network stack will be needed to account for the fundamentally new properties of quantum entanglement. The first realisations of quantum networks are imminent and research interest in quantum network protocols has started growing. In the non...
conference paper 2020
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Polachan, K.P. (author), Prabhakar, T. V. (author), Singh, Chandramani (author), Kuipers, F.A. (author)
In this paper, we consider Tactile Cyber Physical Systems (TCPS), which differ from typical CPS in that haptic sensory feedback is included. In particular, we design and implement a TCPS testbed, called TCPSbed, using well-defined components and interfaces glued together using APIs. In addition to real connections, our testbed supports the...
conference paper 2019
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Demetri, Silvia (author), Zuniga, Marco (author), Picco, Gian Pietro (author), Kuipers, F.A. (author), Bruzzone, Lorenzo (author), Telkamp, Thomas (author)
Many research and industrial communities are betting on LoRa to provide reliable, long-range communication for the Internet of Things. This new radio technology, however, provides widely heterogeneous coverage; a LoRa link may span hundreds of meters or tens of kilometers, depending on the surrounding environment. This high variability is not...
conference paper 2019
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Oostenbrink, J. (author), Kuipers, F.A. (author)
It is often assumed that a network will not be struck by multiple disasters in a relatively short period of time; that is, a subsequent disaster will not strike within the recovery phase of a previous disaster. However, recent events have shown that combinations of disasters are not implausible. This realization calls for a new perspective on...
conference paper 2019
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Turkovic, B. (author), Kuipers, F.A. (author), Uhlig, Steve (author)
Congestion control algorithms are crucial in achieving high utilization while preventing overloading the network. Over the years, many different congestion control algorithms have been developed, each trying to improve over others in<br/>specific situations. However, their interactions and co-existence has, to date, not been thoroughly evaluated...
conference paper 2019
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