Contact Person
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Dr.-Ing. Nikolay Vassilev Tcholtchev
Senior Scientist
Business Unit SQC
+49 30 3463-7175
Dr. Nikolay Tcholtchev
Dr. Nikolay Tcholtchev Fraunhofer FOKUS

Nikolay Tcholtchev (PhD) is a Senior Reasearcher and Project Manager at the Competence Center SQC.

Education & Career

Nikolay Tcholtchev holds a PhD in engineering and a diploma in computer science from the Berlin University of Technology. He is currently working for the Fraunhofer Institute for Open Communication Systems (FOKUS) where he leads and participates in projects related to the areas of Smart Cities (Open Urban Platforms), Network and Systems Management, Cybersecurity, Autonomic Communications, Virtual und Softwarized Networks and Testbeds, VoIP Emergency Communication (NG112), Blockchain, Smart Energy, Firewall/IDS/IPS, Model-Checking, IPv4/6, IoT, Artificial Intelligence, Model-based Testing and Testing for Security purposes.

Furthermore, his current tasks include: technical project management (industrial projects, H2020, EU-FP6/FP7 ...) and reporting (H2020, EU-FP7, industrial projects) as well as project acquisition (H2020, BMBF, industrial projects). Additionally, Nikolay Tcholtchev supervises master and bachelor students in the course of their theses in relation to the above listed topics. Nikolay Tcholtchev is a regular participant at international conferences and publishes on regular basis in peer reviewed proceedings and journals.

  • Since 01/2008: Senior Researcher and Project Manager at the Fraunhofer Institute for Open Communication Systems (FOKUS) in Berlin: Smart Cities (Open Urban Platforms), Network and Systems Management, Cybersecurity, Autonomic Communications, Virtual und Softwarized Networks and Testbeds, VoIP Emergency Communication (NG112), Blockchain, Smart Energy, Firewall/IDS/IPS, Model-Checking, IPv4/6, IoT, Artificial Intelligence, Model-based Testing and Testing for Security purposes
  • 04/2007 – 10/2007: Software Engineer at Nokia Siemens Networks Berlin
  • 10/2006 – 03/2007: Software Engineer in Research & Development, Student Assistant at Siemens Networks in Berlin
  • 06/2003 – 10/2006: Software Engineer in Research & Development, Quality Assurance, Department Software Technology & Tooling Siemens ICM/COM in Berlin


Expertise & Areas of Interest

  • Smart Cities - Open Data, Open Urban Platforms, Mobility-as-a-Service, IoT

  • Model-checking
  • Network and Systems Management
  • Virtual und Softwarized Networks and Testbeds
  • VoIP Emergency Communication (NG112)
  • Blockchain
  • Cybersecurity - Firewall/IDS/IPS
  • IPv6 Testing and Simulation
  • Model-based Testing with UML2.0 and TTCN-3
  • IPv4/v6 & Ethernet - Configuration and Faultmanagement
  • Network Simulation - IP-Addressing and Routing in GNS3, OMNET++ …
  • Autonomic Systems Engineering
  • Artificial Intelligence
  • Future Internet - clean slate and evolutionary approaches
  • Fault-Tolerance and Resilience in Distributed Systems
  • Expertise on testbed setups and experimental platforms for IP based networks
  • Test-Management
  • Software-, Network- and Test-Architecture
  • Project Management

Projects

Current Projects:

  • H2020 Triangulum – Definition of an ICT Reference Architecture for Smart Cities

  • WindNODE – Utilization of Blockchain for the Smart Energy domain
  • H2020 FORTIKA – Cybersecurity for SMEs (Firewall/IDS/IPS)
  • H2020 EMYNOS – NG 112 VoIP Emergency Communication and IoT Integration
  • Consulting for German and European Cities relating to Smart City technology, Open Urban Platforms and ICT Reference Architecures for sustainable development
  • Organisation of Workshops presenting relevant Smart City topics to industry and city administrations
  • Study/Consulting for Blockchain in International Trade and Supply Chains for key European Insititutions

Previous Projects:

  • Smart Cities & Open Urban Platforms:
  • Open Cities - European project on open technological infrastructures for Smart Cities
  • Gemo - Collaborative e-Mobility in Urban Areas of the Future
  • OGDD - Open Government Data Germany
  • GovData.DE – the Open Governmental Data portal for Germany
  • Daten.berlin.de – the Open Data Portal for the city of Berlin
  • ProSeMo – Proactive Seemless Mobility (competition phase)
  • Netzdaten-berlin.de – an energy Open Data Portal for Berlin
  • European Innovation Partnership Smart Citites and Communities (EIP SCC) – regular participant at the networking events, involved in the initial work stream on defining an ICT Reference Architecture for Smart Cities and Communities
  • DIN SPEC 91357 - Reference Architecture Model Open Urban Platform (OUP)
  • DIN SPEC 91367 - Urban mobility data collection for real-time applications
  • Urban Data Spaces – a study, concept and definition of an Urban Data Space on behalf of the Federal Ministry of Education and Research (BMBF)
  • Morgenstadt – City of the Future network of the Fraunhofer society


  • Cybersecurity & Quality Assurance:
  • DIAMONDS - Development and Industrial Application of Multi-Domain Security Testing Technologies
  • Industrial project with focus on Model-Checking for a firewall implementation within a large telecom infrastructure
  • Industrial project with focus on defining a security function for an industrial IoT solution and corresponding pre-standardization activities
  • Industrial project with focus on functional and security testing of a key decentralized component for a large scale telecom infrastructure


  • Network and Telecommunication Technology & Network and Systems Management:
  • EFIPSANS – Autonomic Network and Systems Management in IPv6 networks
  • Autonomic Network Architecture (ANA)
  • Industrial Projects within the IPv6 Test Lab
  • IPv6 phase 2 for public administration – Routing, Addressing and Network Simulation for Security based Policy based Routing within the German public administration


Participations & Memberships

  • DIN SPEC 91357
  • DIN SPEC 91367
  • EIP SCC
  • Morgenstadt – steering board representative member for Fraunhofer FOKUS in 2018, on behalf of Prof. Dr. Ina Schieferdecker
  • BITKOM – WG Smart City / Smart Region

Scientific and Academic Work

Participation in Peer Reviews:

  • SAGE Open journal
  • AIIPCC 2019 International Conference on Artificial Intelligence, Information Processing and Cloud Computing
  • Springer journal on Mobile Networks and Applications
  • International Journal of Network Management
  • Development progress reviewer for the SENAI ICT institute in Recife (Brasil)
  • Springer Software and Systems Modelling Journal


Teaching duties – supervised theses and internships:

  • Bachelor thesis, Niclas Kullig, „Prototypische Implementierung und Evaluierung einer Client-Blockchain-Komponente auf IoT-Geräten“, 07. März 2019, Beuth University of Applied Sciences Berlin, Prof. Dr.-Ing. Peter Gober
  • Diplomarbeit, Rene Richter, „Ein DevOps-basiertes Verfahren zur Generierung von zertifizierungstauglichen Testreports“, Juni, 2019, Free University Berlin, Prof. Katinka Wolter
  • Bachelor thesis, Denis Rangelov, „Design and Development of a Front-End and Business Logic Components for Blockchain Utilization in the Energy Domain“, 2019, Technical University Berlin, Prof. Ina Schieferdecker
  • Intership report, Niclas Kullig, 2018, Beuth University of Applied Sciences Berlin
  • Masterthesis, Ramon Barakat, „Design und Spezifikation einer Experimentalplattform für die Übertragung von eHealth-Sensorwerten im Rahmen des Next Generation Notrufsystems NG112“, 2018, Technical University Berlin, Prof. Ina Schieferdecker
  • Master Thesis, Yuang Chen, „Providing the Infrastructure for SICCT Protocol Tests with Focus on Service Discovery and Pairing“, 01.07.2018, Technical University Berlin, Prof. Ina Schieferdecker
  • Bachelor Thesis in Cognitive Science, Robert Scholz, „Design and Implementation of a CKAN-Plugin for Data Harvesting to the Hadoop Distributed File System“, October 12th 2015, University of Osnabrück, PD Dr. Helmar Gust
  • Master thesis, Faruk Catal, „Entwicklung eines Frameworks zur Visualisierung von IPv6 Paketverläaufen am Beispiel der Netzwerksimulationsumgebung GNS3“, 2014, Beuth University of Applied Sciences Berlin, Prof. Edzard Höfig
  • Master thesis, Philipp Lämmel, „Sicherung von Services in der Cloud auf der Basis der Kombination von OpenID und OAuth, Berlin“, 04. September 2014, Free University Berlin, Prof. Ina Schieferdecker
  • Bachelor thesis, Faruk Catal, „Migration von urbanen Datenplattformen in die Cloud“, 21. April 2013, Beuth University of Applied Sciences Berlin, Prof. Ina Schieferdecker
  • Intership report, Faruk Catal, 2012, Beuth University of Applied Sciences Berlin, Studiengang Technische Informatik BA

Publications

Fraunhofer publication list
Cuno, Silke; Bruns, Lina; Tcholtchev, Nikolay; Lämmel, Phillip; Schieferdecker, Ina:
Data Governance and Sovereignty in Urban Data Spaces based on Standardized ICT Reference Architectures
In: Data, Vol.4 (2019), No.1, Art. 16, 24 pp.
Tcholtchev, Nikolay; Lämmel, Philipp; Scholz, Robert; Rebahi, Yacine; Konitzer, Wojciech; Schieferdecker, Ina:
Enabling the structuring, enhancement and creation of urban ICT through the extension of a standardized smart city reference model
(International Conference on Utility and Cloud Computing (UCC) <11, 2018, Zurich>)
In: Sill, Alan (ed.): 11th IEEE/ACM International Conference on Utility and Cloud Computing companion, UCC-C 2018. Proceedings: 17-20 December 2018, Zurich, Switzerland. Piscataway, NJ: IEEE, 2019, pp. 121-127
urn:nbn:de:0011-n-5461524
Tcholtchev, Nikolay; Ulrich, Steven; Catal, Faruk; Konitzer, Wojciech; Barakat, Ramon; Hoffmann, Andreas; Schieferdecker, Ina:
The need for unified testbed management across multiple teams and stakeholders in a large scale Telecom integration context
(International Conference on Software Quality, Reliability, and Security Companion (QRS-C) <19, 2019, Sofia>)
In: IEEE 19th International Conference on Software Quality, Reliability and Security Companion, QRS-C 2019: 22-26 July 2019, Sofia, Bulgaria. Piscataway, NJ: IEEE, 2019, pp. 427-434
Tcholtchev, Nikolay; Schieferdecker, Ina (Akademischer Betreuer); Küpper, Axel (Gutachter); Menth, Michael (Gutachter) :
Scalable and efficient distributed self-healing with self-optimization features in fixed IP networks
Berlin, TU, Diss., 2019
Schieferdecker, Ina; Bruns, Lina; Cuno, Silke; Flügge, Matthias; Isakovic, Karsten; Klessmann, Jens; Lämmel, Philipp; Stadtkewitz, Dustin; Tcholtchev, Nikolay; Lange, Christoph; Imbusch, Benedikt T.; Strauß, Leonie; Vastag, Alex; Flocke, Florian; Kraft, Volker:
Urbane Datenräume - Möglichkeiten von Datenaustausch und Zusammenarbeit im urbanen Raum. Handreichung zur Studie
Berlin: Fraunhofer FOKUS, 2019
urn:nbn:de:0011-n-5489682
Tcholtchev, Nikolay; Dudeck, Grit; Wagner, Michael; Hein, Christian; Prakash, Arun; Ritter, Tom:
Enabling the interoperability of the Modelica DSL and Matlab Simulink towards the development of self-adaptive dynamic systems
In: International journal of system dynamics applications : IJSDA, Vol.7 (2018), No.4, pp.54-75
Tcholtchev, Nikolay; Lämmel, Philipp; Scholz, Robert; Schieferdecker, Ina:
Facilitating eco-systems for Smart Cities through reference architectures
(Hungarian Future Internet Conference (MJIK) <4, 2017, Budapest>)
In: Híradástechnika = Journal on communications, computers, convergence, contents, companies, Vol.73 (2018), No.1, pp.10-16
Scholz, Robert; Tcholtchev, Nikolay; Lämmel, Philipp; Schieferdecker, Ina:
From metadata catalogs to distributed data processing for smart city platforms and services: A study on the interplay of CKAN and hadoop
(International Conference on Cloud Computing and Services Science (CLOSER) <7, 2017, Porto>)
In: Ferguson, D.: Cloud Computing and Service Science. 7th International Conference, CLOSER 2017: Porto, Portugal, April 24-26, 2017, Revised Selected Papers. Cham: Springer International Publishing, 2018. (Communications in computer and information science 864), pp. 115-136
Rebahi, Y.; Chiu, K.T.; Tcholtchev, N.; Hohberg, S.; Pallis, E.; Markakis, E.:
Towards a next generation 112 testbed: The EMYNOS ESInet
In: International Journal of Critical Infrastructure Protection : IJCIP, Vol.22 (2018), pp.39-50
Catal, Faruk; Tcholtchev, Nikolay; Lämmel, Philipp; Schieferdecker, Ina:
Urbane Datenplattformen in der Cloud
In: Hertzsch, Eckhart: Mensch und Technik in der Smart City. Berlin: Beuth, 2018. (Beuth Innovation), pp. 143-158
Schieferdecker, Ina; Bruns, Lina; Cuno, Silke; Flügge, Matthias; Isakovic, Karsten; Klessmann, Jens; Lämmel, Philipp; Stadtkewitz, Dustin; Tcholtchev, Nikolay; Lange, Christoph; Imbusch, Benedikt T.; Strauß, Leonie; Vastag, Alex; Flocke, Florian; Kraft, Volker:
Urbane Datenräume - Möglichkeiten von Datenaustausch und Zusammenarbeit im urbanen Raum
Berlin: Fraunhofer FOKUS, 2018
urn:nbn:de:0011-n-5000216
Scholz, Robert; Tcholtchev, Nikolay; Lämmel, Philipp; Schieferdecker, Ina:
A CKAN plugin for data harvesting to the Hadoop distributed file system
(International Conference on Cloud Computing and Services Science (CLOSER) <7, 2017, Porto>)
In: Ferguson, Donald (Ed.): 7th International Conference on Cloud Computing and Services Science, CLOSER 2017. Proceedings: April 24-26, 2017, in Porto, Portugal. SciTePress, 2017, pp. 47-56
urn:nbn:de:0011-n-4591163
Lämmel, Philipp; Tcholtchev, Nikolay; Schieferdecker, Ina:
Enhancing cloud based data platforms for Smart Cities with authentication and authorization features
(International Conference on Utility and Cloud Computing (UCC) <10, 2017, Austin/Tex.>)
In: Association for Computing Machinery -ACM-, Special Interest Group on Computer Architecture -SIGARCH-: UCC '17 Companion. Companion Proceedings of the 10th International Conference on Utility and Cloud Computing: Austin, Texas, USA, December 05 - 08, 2017 . New York: ACM, 2017, pp. 167-172
urn:nbn:de:0011-n-4803432
Schieferdecker, Ina; Tcholtchev, Nikolay; Lämmel, Philipp; Scholz, Robert; Lapi, Evanela:
Towards an open data based ICT reference architecture for smart cities
(International Conference for E-Democracy and Open Government (CeDEM) <7, 2017, Krems>)
In: Parycek, Peter (Ed.): 7th International Conference for E-Democracy and Open Government, CeDEM17. Proceedings: Danube University Krems, Krems, Austria; 17-19 May 2017. Piscataway, NJ: IEEE, 2017, pp. 184-193
urn:nbn:de:0011-n-4736968
Tcholtchev, Nikolay; Schneider, Martin A.; Schieferdecker, Ina:
Systematic analysis of practical issues in test automation for communication based systems
(International Conference on Software Testing, Verification and Validation Workshops (ICSTW) <9, 2016, Chicago/Ill.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE Ninth International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2016. Proceedings: 10-15 April 2016, Chicago, Illinois. Los Alamitos, Calif.: IEEE Computer Society Conference Publishing Services (CPS), 2016, pp. 250-256
Tcholtchev, Nikolay; Rennoch, Axel; Hoffmann, Andreas; Günther, Dirk de:
Tretlagervorrichtung, Fahrrad mit mindestens einer Tretlagervorrichtung und System zur Lokalisierung mindestens eines Fahrrades
2016
Schieferdecker, Ina; Tcholtchev, Nikolay; Lämmel, Philipp:
Urban data platforms - an overview
(International Symposium on Open Collaboration (OpenSym) <12, 2016, Berlin>)
In: Association for Computing Machinery -ACM-: 12th International Symposium on Open Collaboration, OpenSym 2016. Proceedings: August 17-19, 2016, Berlin, Germany. New York: ACM, 2016, Art. 14
Starschenko, Alexej; Tcholtchev, Nikolay; Prakash, Arun; Schieferdecker, Ina; Chaparadza, Ranganai:
Auto-configuration of OSPFv3 routing in fixed IPv6 networks
(International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) <7, 2015, Brno>)
In: Institute of Electrical and Electronics Engineers -IEEE-: 7th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2015: Brno, Czech Republic, 6-8 October 2015. Piscataway, NJ: IEEE, 2015, pp. 196-205
Rothfuss, Florian; Borrmann, Daniel; Stegmüller, Sebastian; Jiru, Josef; Budroni, Angela; Bittl, Sebastian; Demmel, Korbinian; Dittwald, Benjamin; Tcholtchev, Nikolay; Seitz, Jochen; Hejc, Gerhard; Vaupel, Thorsten; Wolf, Benjamin; Reichert, Stefan; Mierau, Michael; Tritschler, Johannes; Goeldi, Benriah; Kohrs, Robert; Noeren, Dominik; Hiekel, Steffen; Tönjes, Stefan; Küster, Andreas ; Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik -ESK-, München; Fraunhofer-Institut für Offene Kommunikationssysteme -FOKUS-, Berlin; Fraunhofer-Institut für Arbeitswirtschaft und Organisation -IAO-, Stuttgart; Fraunhofer-Institut für Integrierte Schaltungen -IIS-, Erlangen; Fraunhofer-Institut für Solare Energiesysteme -ISE-, Freiburg/Brsg.; Fraunhofer-Institut für Verkehrs- und Infrastruktursysteme -IVI-, Dresden:
Gemeinschaftlich-E-Mobilität: Fahrzeuge, Daten und Infrastruktur (GEMO): Abschlussbericht
Stuttgart, 2015
urn:nbn:de:0011-n-4424046
Lämmel, Philipp; Tcholtchev, Nikolay; Schieferdecker, Ina:
Integriertes Internet-basiertes System für Authentifizierung und Autorisierung
In: Praxis der Informationsverarbeitung und Kommunikation : PIK, Vol.38 (2015), No.1-2, pp.43-62
Tcholtchev, Nikolay; Dittwald, Benjamin; Scheel, Thomas; Zilci, Begüm Ilke; Schmidt, Danilo; Lämmel, Philipp; Jacobsen, Jurma; Schieferdecker, Ina:
The concept of a mobility data cloud: Design, implementation and trials
(International Computer Software and Applications Conference (COMPSAC) <38, 2014, Västeras>)
In: Chang, Carl K. (Ed.): IEEE 38th International Computer Software and Applications Conference Workshops, COMPSACW 2014: Västerås, Sweden, 21 - 25 July 2014; Proceedings. Piscataway, NJ: IEEE, 2014, pp. 192-198
Damjanovic, Violeta; Glachs, Dietmar; Tcholtchev, Nikolay; Ras, Eric; Tobias, Eric:
EAGLE - Open data and linked data architecture of an enhanced government learning platform
(European Conference on Technology Enhanced Learning (EC-TEL) <9, 2014, Graz>)
In: Rensing, Christoph (Ed.): Open learning and teaching in educational communities. 9th European Conference on Technology Enhanced Learning, EC-TEL 2014: Graz, Austria, September 16-19, 2014; Proceedings. Cham: Springer International Publishing, 2014. (Lecture Notes in Computer Science 8719), pp. 558-559
Tcholtchev, Nikolay; Schieferdecker, Ina:
Framework for distributed autonomic self-healing in fixed IPv6 networks
In: International journal of communication systems, Vol.27 (2014), 12, pp.4103-4125
Tcholtchev, Nikolay; Schieferdecker, Ina:
Framework for ensuring runtime stability of control loops in multi-agent networked environments
In: Gavrilova, M.L.: Transactions on Computational Science XXII. Berlin: Springer, 2014. (Lecture Notes in Computer Science 8360), pp. 64-92
urn:nbn:de:0011-n-2800311
Tcholtchev, Nikolay; Dudeck, Grit; Wagner, Michael; Hein, Christian; Prakash, Arun; Ritter, Tom:
Integrating the Modelica DSL into a platform for model-based tool interoperability
(International Computer Software and Applications Conference (COMPSAC) <38, 2014, Västeras>)
In: Chang, Carl K. (Ed.): IEEE 38th International Computer Software and Applications Conference Workshops, COMPSACW 2014: Västerås, Sweden, 21 - 25 July 2014; Proceedings. Piscataway, NJ: IEEE, 2014, pp. 528-534
Tcholtchev, Nikolay; Prakash, Arun:
On the need for model-driven engineering for data harvesters based on experiences from the german GovData.DE Portal
(Workshop "Encouraging Open Data Usage by Commercial Developers" <2014, Lisbon>)
In: Workshop "Encouraging Open Data Usage by Commercial Developers" 2014. Online resource: December 3, 2014 - December 4, 2014, Lisbon. Lisbon, 2014, 5 pp.
urn:nbn:de:0011-n-3236208
Nieminen, M.; Tcholtchev, N.; Schieferdecker, I.; Räty, T.:
Robust architecture for distributed intelligence in an IP-based mobile wide-area surveillance system
In: The journal of supercomputing, Vol.70 (2014), No.3, pp.1120-1141
Wagner, Michael; Dudeck, Grit; Hein, Christian; Tcholtchev, Nikolay; Gebhardt, Christian; Korff, Andreas:
VARIES framework to support tool integration in product line engineering
(International Software Product Line Conference (SPLC) <18, 2014, Florence>)
In: Gnesi, S.: 18th International Software Product Line Conference 2014. Proceedings. Vol.2: Companion Volume for Workshops, Demonstrations and Tools - Volume 2; Florence, Italy, September 15 - 19, 2014. New York: ACM, 2014, pp. 117-120
urn:nbn:de:0011-n-3151216
Schneider, M.; Großmann, J.; Tcholtchev, N.; Schieferdecker, I.; Pietschker, A.:
Behavioral fuzzing operators for UML sequence diagrams
(System Analysis and Modeling Workshop (SAM) <7, 2012, Innsbruck>)
In: Haugen, Øystein (Ed.) et al.: System Analysis and Modeling: Theory and Practice: 7th International Workshop, SAM 2012, Innsbruck, Austria, October 1-2, 2012. Revised Selected Papers. Berlin: Springer, 2013. (Lecture Notes in Computer Science 7744), pp. 88-104
Wódczak, Michal; Tcholtchev, Nikolay; Vidalenc, Bruno; Li, Yuhong:
Design and evaluation of techniques for resilience and survivability of the routing node
In: International journal of adaptive, resilient and autonomic systems : IJARAS, Vol.4 (2013), No.4, pp.36-63
Marienfeld, F.; Schieferdecker, I.; Lapi, E.; Tcholtchev, N.:
Metadata aggregation at GovData.de: An experience report
(International Symposium on Open Collaboration (OpenSym) <2013, Hong Kong>)
In: Association for Computing Machinery -ACM-: 9th International Symposium on Open Collaboration 2013. Proceedings: WikiSym + Opensym; August 5-7, 2013, Hong Kong, China. New York: ACM, 2013, pp. 638-642
Chaparadza, Ranganai; Wodczak, Michal; Ben Meriem, Tayeb; Lutiis, Paolo de; Tcholtchev, Nikolay; Ciavaglia, Laurent:
Standardization of resilience & survivability, and autonomic fault-management, in evolving and future networks: An ongoing initiative recently launched in ETSI
(International Conference on the Design of Reliable Communication Networks (DRCN) <9, 2013, Budapest>)
In: Institute of Electrical and Electronics Engineers -IEEE-: 9th International Conference on the Design of Reliable Communication Networks, DRCN 2013: 4-7 March 2013, Budapest, Hungary. New York, NY: IEEE, 2013, pp. 331-341
Tcholtchev, N.; Prakash, A.; Schieferdecker, I.; Chaparadza, R.; Petre, R.:
Auto-collaboration for optimal network resource utilization in fixed IPv6 networks
(Global Communications Conference (GLOBECOM) <55, 2012, Anaheim/Calif.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE Globecom Workshops, GC 2012, Vol.1: Anaheim, California, USA, 3 - 7 December 2012. Piscataway/NJ: IEEE, 2012, pp. 807-812
urn:nbn:de:0011-n-2446764
Lapi, Evanela; Tcholtchev, Nikolay; Bassbouss, Louay; Marienfeld, Florian; Schieferdecker, Ina:
Identification and utilization of components for a linked open data platform
(International Computer Software and Applications Conference (COMPSAC) <36, 2012, Izmir>)
In: Bai, X.: IEEE 36th Annual Computer Software and Applications Conference Workshops, COMPSACW 2012. Proceedings: Izmir, Turkey, 16 - 20 July 2012. New York, NY: IEEE, 2012, pp. 112-115
urn:nbn:de:0011-n-2362938
Wotawa, F. (Hrsg.); Tcholtchev, N. (Mitarb.); et al. ; Diamonds Consortium:
Initial model-based security testing methods
Berlin: Fraunhofer FOKUS, 2012
urn:nbn:de:0011-n-2115722
Mantere, M. (Hrsg.); Tcholtchev, N. (Mitarb.); Schneider, M. (Mitarb.); et al. ; Diamonds Consortium:
Initial security testing tools
Berlin: Fraunhofer FOKUS, 2012
urn:nbn:de:0011-n-2115731
Lapi, Evanela; Marienfeld, Florian; Tcholtchev, Nikolay; Klessmann, Jens; Schieferdecker, Ina:
Ein Metadaten-Schema für offene Daten, Dokumente und Applikationen
(Open Government Data Konferenz (OGD) <1, 2012, Wien>)
In: Lutz, Brigitte (Ed.): Win-win-win für Verwaltung, Wirtschaft und Wissenschaft. 1. OGD-D-A-CH-LI-Konferenz 2012: 4. Oktober 2012, Brennpunkt Wien; Konferenzmagazin; open government data D-A-CH-LI. Wien: ADV, 2012, pp. 41-51
Tcholtchev, Nikolay; Farid, Lena; Marienfeld, Florian; Schieferdecker, Ina; Dittwald, Benjamin; Lapi, Evanela:
On the interplay of open data, cloud services and network providers towards electric mobility in smart cities
(Conference on Local Computer Networks (LCN) <37, 2012, Clearwater/Fla.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE 37th Conference on Local Computer Networks Workshops, LCN 2012. Proceedings: Clearwater, Florida, USA, 22-25 October 2012. New York, NY: IEEE, 2012, pp. 860-867
urn:nbn:de:0011-n-2414953
Klessmann, Jens; Denker, Philipp; Schieferdecker, Ina; Schulz, Sönke E.; Hoepner, Petra; Lapi, Evanela; Marienfeld, Florian; Müller, Lena-Sophie; Tcholtchev, Nikolay; Rein-Fischböck, Katharina; Borchers, Kim-Carinna; Janda, Timm; Völz, Dominic; Warnecke, Thomas; Bundesministerium des Innern -BMI-, Berlin:
Open Government Data Deutschland: Eine Studie zu Open Government in Deutschland im Auftrag des Bundesministerium des Innern; Stand: Juli 2012
Berlin: BMI, 2012
urn:nbn:de:0011-n-2139459
Rebahi, Y.; Tcholtchev, N.; Chaparadza, R.; Merekoulias, V.N.:
Addressing security issues in the autonomic Future Internet
(Consumer Communications and Networking Conference (CCNC) <8, 2011, Las Vegas/Nev.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE Consumer Communications and Networking Conference, CCNC 2011. Vol.1: Las Vegas, Nevada, USA, 9 - 12 January 2011; including workshop papers. Piscataway/NJ: IEEE, 2011, pp. 517-518
Kastrinogiannis, T.; Tcholtchev, N.; Prakash, A.; Chaparadza, R.; Kaldanis, V.; Coskun, H.; Papavassiliou, S.:
Addressing stability in future autonomic networking
(International Conference on Mobile Networks and Management (MONAMI) <2, 2010, Santander>)
In: Pentikousis, K.: Mobile networks and management. Second international conference, MONAMI 2010: Santander, Spain, September 22 - 24, 2010; Revised selected papers. Berlin: Springer, 2011. (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 68), pp. 50-61
Chaparadza, R.; Tcholtchev, N.; Kaldanis, V.:
How autonomic fault-management can address current challenges in fault-management faced in IT and telecommunication networks
(International Conference on Access Networks <5, 2010, Budapest>)
In: Szabó, Róbert (Ed.) et al.: Access networks. 5th International ICST Conference on Access Networks, AccessNets 2010 and First International Workshop on Automatic Networking and Self-Management in Access Networks, Selfmagicnets 2010. Revised selected papers: Budapest, Hungary, November 3 - 5, 2010. Berlin: Springer, 2011. (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 63), pp. 253-268
Liakopoulos, A.; Zafeiropoulos, A.; Marinos, C.; Grammatikou, M.; Tcholtchev, N.; Gouvas, P.:
Applying distributed monitoring techniques in autonomic networks
(Global Telecommunications Conference (GLOBECOM) <53, 2010, Miami/Fla.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE GLOBECOM Workshops, GC 2010. Vol.1: Miami, Florida, USA, 6 - 10 December 2010. Piscataway/NJ: IEEE, 2010, pp. 498-502
Tcholtchev, N.; Chaparadza, R.:
Autonomic fault-management and resilience from the perspective of the network operation personnel
(Global Telecommunications Conference (GLOBECOM) <53, 2010, Miami/Fla.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE GLOBECOM Workshops, GC 2010. Vol.1: Miami, Florida, USA, 6 - 10 December 2010. Piscataway/NJ: IEEE, 2010, pp. 469-474
Tcholtchev, N.; Chaparadza, R.:
On self-healing based on collaborating end-systems, access and core network components
(International Conference on Access Networks <5, 2010, Budapest>)
In: Szabó, Róbert (Ed.) et al.: Access networks. 5th International ICST Conference on Access Networks, AccessNets 2010 and First International Workshop on Automatic Networking and Self-Management in Access Networks, Selfmagicnets 2010. Revised selected papers: Budapest, Hungary, November 3 - 5, 2010. Berlin: Springer, 2010. (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 63), pp. 283-298
Tcholtchev, N.; Cavalcante, A.B.; Chaparadza, R.:
Scalable markov chain based algorithm for fault-isolation in autonomic networks
(Global Telecommunications Conference (GLOBECOM) <53, 2010, Miami/Fla.>)
In: Institute of Electrical and Electronics Engineers -IEEE-: IEEE Global Telecommunications Conference, GLOBECOM 2010: 6-10 December 2010, Miami, Florida, USA. New York, NY: IEEE, 2010, 6 pp.
Tcholtchev, N.; Grajzer, M.; Vidalenc, B.:
Towards a unified architecture for resilience, survivability and autonomic fault-management for self-managing networks
(International Conference on Service-Oriented Computing (ICSOC) <7, 2009, Stockholm>)
In: Dan, A.: Service-Oriented Computing. ICSOC/ServiceWave 2009 Workshops: International Workshops ICSOC/ServiceWave 2009, Stockholm, Sweden, November 23-27, 2009; Revised selected papers. Berlin: Springer, 2010. (Lecture Notes in Computer Science 6275), pp. 335-344
Tcholtchev, N.; Chaparadza, R.; Prakash, A.:
Addressing stability of control-loops in the context of the GANA architecture: Synchronization of actions and policies
(International Workshop on Self-Organizing Systems (IWSOS) <4, 2009, Zurich>)
In: Spyropoulos, T.: Self-organizing systems. 4th IFIP TC 6 international workshop, IWSOS 2009: Zurich, Switzerland, December 9-11, 2009; proceedings. Berlin: Springer, 2009. (Lecture Notes in Computer Science 5918), pp. 262-268
Tcholtchev, N.; Schieferdecker, I. :
Components and mechanisms of autonomic fault-management for self-managing networks
Berlin, TU, Dipl.-Arb., 2009
Chaparadza, R.; Tcholtchev, N.; Schieferdecker, I.:
Implementation of the UniFAFF framework for autonomic fault-management in ANA networks
(International Conference on Latest Advances in Networking (ICLAN) <2008, Toulouse>)
In: Beylot, A.-L.: Third International Conference on the Latest Advances in Networks, ICLAN 2008. Proceedings: Toulouse, France, December10-12, 2008. Toulouse, 2009, pp. 75-81