D
David Haja
Researcher at Budapest University of Technology and Economics
Publications - 15
Citations - 273
David Haja is an academic researcher from Budapest University of Technology and Economics. The author has contributed to research in topics: Cloud computing & Orchestration (computing). The author has an hindex of 6, co-authored 15 publications receiving 147 citations.
Papers
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Journal ArticleDOI
5G support for Industrial IoT Applications - Challenges, Solutions, and Research gaps
Pal Varga,Jozsef Peto,Attila Franko,David Balla,David Haja,Ferenc Nandor Janky,Gabor Soos,Daniel Ficzere,Markosz Maliosz,Laszlo Toka +9 more
TL;DR: This paper identifies current research challenges and solutions in relation to 5G-enabled Industrial IoT, based on the initial requirements and promises of both domains, and provides meaningful comparisons for each of these areas to draw conclusions on current research gaps.
Journal ArticleDOI
Scalable edge cloud platforms for IoT services
Balazs Sonkoly,David Haja,Balázs Németh,Mark Szalay,Janos Czentye,Robert Szabo,Rehmat Ullah,Byung-Seo Kim,Laszlo Toka +8 more
TL;DR: This paper proposes two architecture options together with proof-of-concept prototypes and corresponding embedding algorithms, which enable the provisioning of delay-sensitive IoT applications and proposes a multi-layer orchestration system where an orchestrator is added on top of VIMs and network controllers to integrate different resource domains.
Proceedings ArticleDOI
Tuple space explosion: a denial-of-service attack against a software packet classifier
Levente Csikor,Dinil Mon Divakaran,Min Suk Kang,Attila Kőrösi,Balazs Sonkoly,David Haja,Dimitrios P. Pezaros,Stefan Schmid,Gábor Rétvári +8 more
TL;DR: This paper evaluates whether the de facto Tuple Space Search (TSS) packet classification algorithm used in popular software networking stacks such as the Open vSwitch is robust against low-rate denial-of-service attacks and proposes MFCGuard that carefully manages the tuple space and keeps packet classification fast.
Proceedings ArticleDOI
Sharpening Kubernetes for the Edge
TL;DR: A custom Kubernetes scheduler that makes its decisions with applications' delay constraints and edge reliability in mind is designed, and the solution that is released as open source is described.
Proceedings ArticleDOI
How to orchestrate a distributed OpenStack
TL;DR: The slight modification of OpenStack, the mainstream VIM today, is shown, which enables it to manage a distributed cloud-fog infrastructure and takes into account network aspects that are extremely important in a resource setup with remote fogs.