Ralf Tönjes

ORCID

Publication Activity (10 Years)

Years Active: 1994-2023
Publications (10 Years): 39

Top Venues

GIL Jahrestagung

GIoTS

IoTBDS

Comput. Sci. Res. Dev.

University of Hanover, Hannover, Germany (PHD)

Education History

University of Hanover, Hannover, Germany

PHD

Publications

Hans Muller Mendonca, Ralf Tönjes, Tiago Pereira
Exponentially Long Transient Time to Synchronization of Coupled Chaotic Circle Maps in Dense Random Networks. Entropy 25 (7) (2023)
Julian Dreyer, Ralf Tönjes, Nils Aschenbruck
ESPuF - Enabling SRAM PUFs on Commodity Hardware. ICSPCS (2023)
Julian Dreyer, Ralf Tönjes, Nils Aschenbruck
Towards Generating True Random Numbers using Magnetoresistive RAM. WTS 2023 (2023)
Frank Nordemann, Ralf Tönjes, Heiko Tapken, Lukas Hesse
Kooperative Agrarprozesse resilient gestalten und dynamisch optimieren. GIL Jahrestagung (2023)
Marten Fischer, Ralf Tönjes
Resource-aware Security Configuration for Constrained IoT Devices. Q2SWinet (2023)
Felix Kahmann, Fabian Honecker, Julian Dreyer, Marten Fischer, Ralf Tönjes
Performance Comparison of Directed Acyclic Graph-Based Distributed Ledgers and Blockchain Platforms. Comput. 12 (12) (2023)
Marten Fischer, Ralf Tönjes
Modelling of Resource-Aware Information Flows for Resource Constraint IoT Devices. GIOTS (2022)
Fabian Honecker, Julian Dreyer, Ralf Tönjes
Comparison of Distributed Tamper-Proof Storage Methods for Public Key Infrastructures. Future Internet 14 (11) (2022)
Julian Dreyer, Ralf Tönjes, Nils Aschenbruck
Towards securing Public-Key Storage using Hyperledger Fabric. ICBC (2022)
Julian Dreyer, Ralf Tönjes, Nils Aschenbruck
Decentralizing loT Public- Key Storage using Distributed Ledger Technology. IWCMC (2022)
Sarmad Ghafoor, Manuel Kerkmann, Ralf Tönjes
QCI Adaptive Load Balancing in Heterogeneous Wireless Networks of Indoor Environments. Q2SWinet (2021)
Frank Nordemann, Anas Bin Muslim, Ralf Tönjes
Mit Highspeed auf das Feld - Ethernet auf Landmaschinen. GIL Jahrestagung (2021)
Julian Dreyer, Marten Fischer, Ralf Tönjes
NFC Key Exchange - A light-weight approach to authentic Public Key Exchange for IoT devices. WF-IoT (2021)
Thorben Iggena, Eushay Bin Ilyas, Marten Fischer, Ralf Tönjes, Tarek Elsaleh, Roonak Rezvani, Narges Pourshahrokhi, Stefan Bischof, Andreas Fernbach, Josiane Xavier Parreira, Patrik Schneider, Pavel Smirnov, Martin Strohbach, Hien Thi Thu Truong, Aurora González-Vidal, Antonio F. Skarmeta, Parwinder Singh, Michail J. Beliatis, Mirko Presser, Juan Antonio Martínez, Pedro Gonzalez-Gil, Marianne Krogbæk, Sebastian Holmgard Christophersen
IoTCrawler: Challenges and Solutions for Searching the Internet of Things. Sensors 21 (5) (2021)
Frank Nordemann, Ralf Tönjes, Elke Pulvermüller, Heiko Tapken
Graph-based Multi-Criteria Optimization for Business Processes. BMSD (2020)
Thorben Iggena, Eushay Bin Ilyas, Ralf Tönjes
Quality of Information for IoT-Frameworks. ISC2 (2020)
Frank Nordemann, Ralf Tönjes, Elke Pulvermüller
Resilient BPMN: Robust Process Modeling in Unreliable Communication Environments. MODELSWARD (2020)
Frank Nordemann, Ralf Tönjes, Elke Pulvermüller, Heiko Tapken
A Graph-based Approach for Process Robustness in Unreliable Communication Environments. ENASE (2020)
Frank Nordemann, Thorben Iggena, Franz Kraatz, Maik Fruhner, Heiko Tapken, Ralf Tönjes
Digitale Agrarprozesse für eine nachhaltige und verordnungskonforme Landwirtschaft am Beispiel einer kooperativen Flüssigmistausbringung. GIL Jahrestagung (2020)
Frank Nordemann, Ralf Tönjes, Elke Pulvermüller, Heiko Tapken
Resilient Process Modeling and Execution Using Process Graphs. ENASE (Selected Papers) (2020)
Julian Dreyer, Ralf Tönjes
What3Words Geo Encryption: An Alternative Approach to Location based Encryption. IoTBDS (2020)
Eushay Bin Ilyas, Marten Fischer, Thorben Iggena, Ralf Tönjes
Virtual Sensor Creation to Replace Faulty Sensors Using Automated Machine Learning Techniques. GIoTS (2020)
Frank Nordemann, Ralf Tönjes, Elke Pulvermüller, Heiko Tapken
Resilient Business Process Modeling and Execution Using BPMN and Microservices. MODELSWARD (Revised Selected Papers) (2020)
Anas Bin Muslim, Frank Nordemann, Ralf Tönjes
Analysis of methods for prioritizing critical data transmissions in agricultural vehicular networks. WiMob (2020)
Franz Kraatz, Heiko Tapken, Frank Nordemann, Thorben Iggena, Maik Fruhner, Ralf Tönjes
An Integrated Data Platform for Agricultural Data Analyses based on Agricultural ISOBUS and ISOXML. IoTBDS (2019)
Marten Fischer, Alfred Scheerhorn, Ralf Tönjes
Using Attribute-Based Encryption on IoT Devices with instant Key Revocation. PerCom Workshops (2019)
Maik Fruhner, Thorben Iggena, Franz Kraatz, Frank Nordemann, Heiko Tapken, Ralf Tönjes
OPeRAte: An IoT Approach towards Collaborative, Manufacturer-independent Farming 4.0. IoTBDS (2019)
Marten Fischer, Daniel Kümper, Ralf Tönjes
Towards improving the Privacy in the MQTT Protocol. GIoTS (2019)
Sefki Kolozali, María Bermúdez-Edo, Nazli FarajiDavar, Payam M. Barnaghi, Feng Gao, Muhammad Intizar Ali, Alessandra Mileo, Marten Fischer, Thorben Iggena, Daniel Kuemper, Ralf Tönjes
Observing the Pulse of a City: A Smart City Framework for Real-Time Discovery, Federation, and Aggregation of Data Streams. IEEE Internet Things J. 6 (2) (2019)
Franz Kraatz, Frank Nordemann, Thorben Iggena, Heiko Tapken, Ralf Tönjes
Darstellung digitaler Dienste und Informationen mittels Augmented Reality. GIL Jahrestagung (2018)
Antonio F. Skarmeta, José Santa, Juan A. Martínez, Josiane Xavier Parreira, Payam M. Barnaghi, Shirin Enshaeifar, Michail J. Beliatis, Mirko A. Presser, Thorben Iggena, Marten Fischer, Ralf Tönjes, Martin Strohbach, Alessandro Sforzin, Hien Thi Thu Truong
IoTCrawler: Browsing the Internet of Things. GIoTS (2018)
Frank Nordemann, Thorben Iggena, Franz Kraatz, Heiko Tapken, Ralf Tönjes
Modellierung, Ausführung und Steuerung von kooperativen Agrarprozessen mit BPMN und MQTT. GIL Jahrestagung (2018)
Daniel Brettschneider, Daniel Hölker, Ralf Tönjes
High Performance and Privacy for Distributed Energy Management: Introducing PrivADE+ and PPPM. SMARTGREENS (2018)
Daniel Brettschneider, Daniel Hölker, Alfred Scheerhorn, Ralf Tönjes
Preserving privacy in Distributed Energy Management. Comput. Sci. Res. Dev. 32 (1-2) (2017)
Daniel Kümper, Ralf Tönjes, Elke Pulvermüller
An infrastructure-based interpolation and propagation approach for IoT data analytics. ICIN (2017)
Daniel Brettschneider, Daniel Hölker, Peter Roer, Ralf Tönjes
Cluster-based distributed algorithm for energy management in smart grids. Comput. Sci. Res. Dev. 31 (1-2) (2016)
Franz Kraatz, Frank Nordemann, Ralf Tönjes
Datensicherheit: Die nächste große Herausforderung in der modernen Landtechnik? GIL Jahrestagung (2016)
Daniel Hölker, Daniel Brettschneider, Marten Fischer, Ralf Tönjes, Peter Roer
Quality-functions for an uniform and comparable analysis of demand side management algorithms. Comput. Sci. Res. Dev. 31 (1-2) (2016)
Daniel Brettschneider, Daniel Hölker, Ralf Tönjes, Alfred Scheerhorn
On Homomorphic Encryption for privacy-preserving distributed load adaption in smart grids. ICC (2016)
Ralf Tönjes, Eike Steffen Reetz, Marten Fischer, Daniel Kuemper
Automated Testing of Context-Aware Applications. VTC Fall (2015)
Franz Kraatz, Frank Nordemann, Ralf Tönjes
Anbindung von ISOBUS-Geräten an ein online Precision Farming System. GIL Jahrestagung (2015)
Payam M. Barnaghi, María Bermúdez-Edo, Ralf Tönjes
Challenges for Quality of Data in Smart Cities. ACM J. Data Inf. Qual. 6 (2-3) (2015)
Daniel Brettschneider, Alfred Scheerhorn, Daniel Hölker, Peter Roer, Ralf Tönjes
Privacy-friendly distributed algorithm for energy management in smart grids. NetSys (2015)
Michael Knappmeyer, Saad Liaquat Kiani, Eike Steffen Reetz, Nigel Baker, Ralf Tönjes
Survey of Context Provisioning Middleware. IEEE Commun. Surv. Tutorials 15 (3) (2013)
Suparna De, François Carrez, Eike Steffen Reetz, Ralf Tönjes, Wei Wang
Test-Enabled Architecture for IoT Service Creation and Provisioning. Future Internet Assembly (2013)
Daniel Kuemper, Eike Steffen Reetz, Ralf Tönjes
Test derivation for semantically described IoT services. Future Network & Mobile Summit (2013)
Eike Steffen Reetz, Michael Knappmeyer, Saad Liaquat Kiani, Ashiq Anjum, Nik Bessis, Ralf Tönjes
Performance simulation of a context provisioning middleware based on empirical measurements. Simul. Model. Pract. Theory 34 (2013)
Daniel Kuemper, Eike Steffen Reetz, Daniel Hölker, Ralf Tönjes
Test-Enhanced Life Cycle for Composed IoT-Based Services. EUNICE (2013)
Eike Steffen Reetz, Daniel Kuemper, Klaus Moessner, Ralf Tönjes
How to Test IoT-based Services before Deploying them into Real World. EW (2013)
Frank Nordemann, Ralf Tönjes
Transparent and autonomous store-carry-forward communication in Delay Tolerant Networks (DTNs). ICNC (2012)
Ralf Tönjes, Eike Steffen Reetz, Klaus Moessner, Payam M. Barnaghi
A test-driven approach for life cycle management of internet of things enabled services. Future Network & Mobile Summit (2012)
Eike Steffen Reetz, Michael Knappmeyer, Saad Liaquat Kiani, Nigel Baker, Ralf Tönjes
Performance evaluation of a context provisioning middleware. ICNC (2012)
Wei Wang, Suparna De, Ralf Tönjes, Eike Steffen Reetz, Klaus Moessner
A Comprehensive Ontology for Knowledge Representation in the Internet of Things. TrustCom (2012)
Marten Fischer, Ralf Tönjes
Generating test data for black-box testing using genetic algorithms. ETFA (2012)
Ahsan Ikram, Nigel Baker, Michael Knappmeyer, Eike Steffen Reetz, Ralf Tönjes
An artificial chemistry based framework for personal and social context aware smart spaces. IWCMC (2011)
Michael Knappmeyer, Saad Liaquat Kiani, Nigel Baker, Ahsan Ikram, Ralf Tönjes
Survey on Evaluation of Context Provisioning Middleware. ARCS Workshops (2011)
Ahsan Ikram, Nigel Baker, Michael Knappmeyer, Ralf Tönjes
A Chemical Model to Enable Context Awareness. NTMS (2011)
Michael Knappmeyer, Daniel Brettschneider, Saad Liaquat Kiani, Ralf Tönjes
Context Source: A Smartphone Application for Serving Context to a Generic Context Provisioning System. ARCS Workshops (2011)
Marten Fischer, Ralf Tönjes, Rolf Lasch
A new approach for automatic generation of tests for next generation network communication services. ETFA (2011)
Daniel Kümper, Ralf Tönjes
Performance evaluation of a generic driver for medical Bluetooth sensors. Future Network & Mobile Summit (2011)
Daniel Kümper, Ralf Tönjes
Remote configuration and deployment of sensor drivers for a medical bluetooth sensor gateway. WOWMOM (2011)
Michael Knappmeyer, Ralf Tönjes, Saad Liaquat Kiani, Nigel Baker
Modular context processing and provisioning: prototype experiences. CASEMANS@Ubicomp (2010)
Saad Liaquat Kiani, Michael Knappmeyer, Eike Steffen Reetz, Nigel Baker, Ralf Tönjes
Effect of Caching in a Broker Based Context Provisioning System. EuroSSC (2010)
Michael Knappmeyer, Nigel Baker, Saad Liaquat, Ralf Tönjes
A Context Provisioning Framework to Support Pervasive and Ubiquitous Applications. EuroSSC (2009)
Armin Lehmann, Thomas Eichelmann, Ulrich Trick, Rolf Lasch, Björn Ricks, Ralf Tönjes
TeamCom: A Service Creation Platform for Next Generation Networks. ICIW (2009)
Rolf Lasch, Björn Ricks, Ralf Tönjes
Service Creation Environment for Business-to-Business Services. AINA Workshops (2009)
Eike Steffen Reetz, Rainer Höckmann, Ralf Tönjes
Performance Evaluation of Topologies for Cooperative and Dynamic Resource Relaying. EW (2008)
Michael Knappmeyer, Björn Ricks, Ralf Tönjes, Adel Al-Hezmi
Advanced Multicast and Broadcast Content Distribution in Mobile Cellular Networks. GLOBECOM (2007)
Michael Knappmeyer, Ralf Tönjes
Adaptive Data Scheduling for Mobile Broadcast Carousel Services. VTC Spring (2007)
Adel Al-Hezmi, Michael Knappmeyer, Björn Ricks, Filipe C. Pinto, Ralf Tönjes
Enabling IMS with Multicast and Broadcast Capabilities. PIMRC (2007)
Paul Leaves, Klaus Moessner, Rahim Tafazolli, David Grandblaise, Didier Bourse, Ralf Tönjes, Michele Breveglieri
Dynamic spectrum allocation in composite reconfigurable wireless networks. IEEE Commun. Mag. 42 (5) (2004)
Ralf Keller, Ralf Tönjes
Multi-Access in Future Generations. Wirel. Pers. Commun. 26 (2-3) (2003)
Ralf Tönjes, Thorsten Lohmar, Marc Vorwerk, Ralf Keller
Flow-control for multi-access systems. PIMRC (2002)
Marco Annoni, Robert E. Hancock, Toni Paila, Enrico Scarrone, Ralf Tönjes, Luca Dell'Uomo, Dave Wisely, Robert Mort
Radio access networks beyond 3G: a first comparison of architectures. PIMRC (2002)
Ralf Tönjes
Wissensbasierte Interpretation und 3D-Rekonstruktion von Landschaftsszenen aus Luftbildern. Künstliche Intell. 15 (4) (2001)
Ralf Keller, Thorsten Lohmar, Ralf Tönjes, Jörn Thielecke
Convergence of cellular and broadcast networks from a multi-radio perspective. IEEE Wirel. Commun. 8 (2) (2001)
Ralf Keller, Thorsten Lohmar, Ralf Tönjes, Jörn Thielecke
Convergence of Broadcast and New Telecom Networks. Wirel. Pers. Commun. 17 (2-3) (2001)
Lin Xu, Ralf Tönjes, Toni Paila, Wolfgang Hansmann, Matthias Frank, Markus Albrecht
DRiVE-ing to the Internet: Dynamic Radio for IP Services in Vehicular Environments. LCN (2000)
Ralf Tönjes, Claus-E. Liedtke
Knowledge based interpretation of aerial images using multiple sensors. EUSIPCO (1998)
Peter Schulze, Stefan Growe, Ralf Tönjes
3D Visualization and Exploration of Remote Sensing Data. Computer Graphics International (1998)
Stefan Growe, Ralf Tönjes
Use of explicit knowledge and GIS data for the 3D evaluation of remote sensing images. ICPR (1998)
Stefan Growe, Ralf Tönjes
A Knowledge Based Approach to Automatic Image Registration. ICIP (3) (1997)
Ralf Tönjes
Control of scene reconstruction using explicit knowledge. WACV (1996)
Ralf Tönjes
Realistic Landscape Modelling with High Level of Detail. ICIP (2) (1994)

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Publication Activity (10 Years)

Top Topics

Top Venues

Ralf Tönjes