UNIFY envisions full network and service virtualization to enable rich and flexible services and operational efficiency. Therefore, the UNIFY consortium will research, develop and evaluate means to orchestrate, verify and observe end-to-end service delivery from home and enterprise networks through aggregation and core networks to data centres. Telecom providers struggle with low service flexibility, increasing complexity and related costs. Although cloud computing and networking have been two active fields of research, there is currently little integration between the vast networking assets and data centres of telecom providers. A unified production environment will create unprecedented opportunities for innovation, an improved quality of experience for users, and technological leadership for European industry and academia. A faster and more flexible network will reduce operating costs and open up new business possibilities.
Bio
Juhoon Kim is working at Deutsche Telekom AG in Germany. Within the company, he is mainly responsible for the analysis of the technology impact and for the management of hardware standardization project. He is also working on several EU-funded projects which focus on new networking paradigms such as Software-defined Networking (SDN), Network Function Virtualiztion (NFV), and Next Generation Mobile Network (NGMN/5G). His research interest is centered around developing and evaluating future Internet protocols and architectures such as Network Function Virtualization (NFV), Software-Defined Networking (SDN) Locator/ID Separation Protocol (LISP), and Multi-access data transmission.
Previously, he received Ph.D. and M.Sc. degrees in Computer Science from TU Berlin under supervision of Prof. Anja Feldmann.
Curriculum VitaeResearch Interests
- Virtualization of telecommunication infrastructure such as Network Function Virtualization (NFV)
- Quality of Service (QoS) and Quality of Experience (QoE)
- Locator/ID Separation Protocol (LISP)
- Network traffic analysis and network monitoring
- Internet content delivery
- Performance analysis of the Internet architectures and network protocols
Trainings & Certificates
Projects
The goal of the 5G Exchange (5GEx) project is to enable cross-domain orchestration of services over multiple administrations or over multi-domain single administrations. This will allow end-to-end network and service elements to mix in multi-vendor, heterogeneous technology and resource environments. Market fragmentation has resulted in a multitude of network operators each focused on different countries and regions. This makes it difficult to create infrastructure services spanning multiple countries, such as virtual connectivity or compute resources, as no single operator has a footprint everywhere.
Publications
Internet Traffic Analysis
Watching the IPv6 Takeoff from an IXP's Viewpoint
Juhoon Kim, Nadi Sarrar, Anja Feldmann
2014
Tigers vs Lions: Towards Characterizing Solitary and Group User Behavior in MMORPG
Juhoon Kim, Nikolaos Chatzis, Matthias Siebke, Anja Feldmann
Technische Universitaet Berlin
2013
Today's Usenet Usage: Characterizing NNTP traffic
Juhoon Kim, Fabian Schneider, Bernhard Ager, Anja Feldmann
Proceedings of the 13th IEEE Global Internet Symposium
2010
Revisiting Cacheability in Times of User Generated Content
Bernhard Ager, Fabian Schneider, Juhoon Kim, Anja Feldmann
Proceedings of the 13th IEEE Global Internet Symposium
2010
Locator/ID Separation Protocol (LISP)
Caching Locator/ID mappings: An experimental scalability analysis and its implications
Juhoon Kim, Luigi Iannone, Anja Feldmann
Elsevier Computer Networks Journal
2013
A Local Approach to Fast Failure Recovery of LISP Ingress Tunnel Routers
Damien Saucez, Juhoon Kim, Luigi Iannone, Olivier Bonaventure, Clarence Filsfils
In Proceedings of the 11th IFIP International Conference on Networking. Springer
2012
A Deep Dive into the LISP Cache and What ISPs Should Know about It
Juhoon Kim, Luigi Iannone, Anja Feldmann
In Proceedings of the 10th IFIP International Conference on Networking. Springer, 267-278
2011
Can TCP and Locator/ID Seperation get along?
Juhoon Kim, Luigi Iannone, Anja Feldmann
CHANGE and Ofelia Summer School
2011
Multi-source Multipath HTTP (mHTTP)
Multi-source Multipath HTTP (mHTTP): A Proposal
Juhoon Kim, Yung-Chih Chen, Ramin Khalili, Anja Feldmann, and Don Towsley
ACM SIGMETRICS
2014
Multi-source Multipath HTTP (mHTTP): A Proposal
Juhoon Kim, Ramin Khalili, Anja Feldmann, Yung-Chih Chen, Don Towsley
2013
Software Defined Networking (SDN) & Network Function Virtualization (NFV)
A Study of Slice-Aware Service Assurance for Network Function Virtualization
Juhoon Kim, Min Xie
2nd Workshop on Advances in Slicing for Softwarized Infrastructures (S4SI)
2019
Realizing Services and Slices Across Multiple Operator Domains
Ishan Vaishnavi, Juhoon Kim et.al.
In Proceedings of the 30th IEEE/IFIP Network Operations and Management Symposium (NOMS'18)
2018
GiLAN Roaming: Roam Like at Home in a Multi-Provider NFV Environment
Juhoon Kim, Luis M. Contreras, Pierluigi Greto, Hilmar Magnusson, Hagen Woesner, Daniel Fritzsche, Luca Cominardi, Carlos J. Bernardos
Proceedings of the 18th International Symposium on Networks, Computers and Communications (ISNCC'18)
2018
DevOps for Software-Defined Telecom Infrastructure. IETF draft-unify-nfvrg-devops-00, 01, 02
Catalin Meirosu, Antonio Manzalini, Juhoon Kim, Rebecca Steinert, Sachin Sharma, Guido Marchetto, Ioanna Papafili
Service Provider DevOps for Large Scale Modern Network Services
Juhoon Kim et.al.
10th International Workshop on Business-driven IT Management
2015
Theses and Projects
Towards Utilizing Network Diversity for future Internet Protocols
Juhoon Kim
Ph.D. Thesis, Technische Universitaet Berlin
2014
Thesis Committee:
Prof. Anja Feldmann, TU-Berlin, Germany
Prof. Don Towsley, UMass, USA
Prof. Luigi Iannone, Telecom ParisTech, France
Dr. Ramin Khalili, Huawei European Research Center in Munich
eDonkey and Kad Traffic Analysis based on Semantic Protocol Identification
Juhoon Kim
Master Thesis, Technische Universitaet Berlin
2010
NNTP Traffic Analysis
Juhoon Kim
Master project, Technische Universitaet Berlin
2009
Work Experience
- 2018 - current: engineer at Deutsche Telekom AG
- 2014 - 2018: researcher at TU-Berlin / Telekom Innovation Laboratories
- 2012: visiting researcher at International Carrier Sales & Solutions (ICSS), Deutsche Telekom
- 2003 - 2004: researcher & developer at Softcan, Inc.
- 2001 - 2002: software developer at Korea.com communications
Teaching Experience
Master/Diplom thesis supervision
- Diplom thesis: World of Warcraft traffic analysis, Matthias Siebke
- Master thesis: Development of mHTTP scheduling algorithm, Karl Fischer
- Master thesis: Internet hyper-giant analysis, Soumya Ranjan Parida
Teaching & seminar organization
- Internet Routing Seminar (WS13/14)
- Network Protocols and Architectures (WS13/14)
- Internet Measurement Seminar (SS13)
- Network Protocols and Architectures (WS12/13)
- Network Protocols and Architectures (WS11/12)
- Internet Routing Seminar (WS11/12)
- Network Protocols and Architectures (WS10/11)
- Internet Routing Seminar (WS10/11)
Invited lectures & talks
- A special lecture at Sungkyunkwan University, Korea, An introduction to the new networking paradigm and related EU projects, 2018
- A talk at Soongsil University, Korea, An introduction to the NFV-related EU projects UNIFY & 5G Exchange, 2018
- An invited talk at the "Efficient Use of Energy with IT" seminar which has been held as a part of Asia Pacific Week Berlin event, 2019
Software
- Multi-source Multipath HTTP
- LISP Cache Emulator
- Web-based DNS Lookup
- FPL(Functional Programming Language)-like linear data structure in PHP
- A simple DNS lookup script written in Perl
- Web-based eDonkey Querier (this page is being repaired)