Panel 2

Network Slicing: Real-world Opportunities with Open Standards and Open Source

Wednesday, 20 june, 14:00-15:30, Room Linhart hall
  • Kostas Pentikousis (Travelping, Germany)

Motivation and Background

Network slicing has captured the imagination of 5G business developers and fuelled the definition of a range of use cases during the last years. Researchers and industry alike have been looking into the system design and implementation aspects. As standards organizations picked up the pace in defining what network slicing means from an interoperability perspective, several aspects emerged ranging from trusted end-to-end isolation and resource efficiency to automation and full network slice lifecycle management to multi-domain support. In practice, network slicing is bound to be coupled with network function softwarization and service chaining in order to serve the diverse use cases stemming from the 5G scenarios (eMBB, mMTC, URLLC). This panel will present the mid-term real-world opportunities for operators bringing network slicing offerings to the market as well as the feedback from the end customers. The panel will discuss items that are key for the next phases of standardization as well as the road blocks that are still in place. Last but not least, based on the experience, current momentum, and established best practices in other domains, softwarization goes hand in hand with open source used originally for simple proofs of concept and increasingly entering the carrier-grade telco-clouds. Open source relates well with open standards and when combined can significantly lower the total cost of ownership (TCO) and speed up market velocity. The panel will review the use of open source in network slicing and debate which cases fit best a wider adoption of open source solutions.


  • What is network slicing and how scattered is it at the moment?
  • Technical/Research-related
    • From static resource isolation to dynamic resource control: are we there yet?
    • What are the challenges of network management and orchestration in multi-tenant scenarios?
    • What do the first results from trials with network slicing based on open source tells us?
    • OTT and network slicing: friends or foes?
  • Deployment-related
    • How does the industry move towards network slicing reality?
    • Network slicing in practice: how many slices are realistic?
    • Open standards for network slicing: what is the current state and pain points?
    • What are the real-world opportunities for customer-driven end-to-end network slicing?
    • What is the role of network slicing in the carrier network 5 years from now?


The panel is composed of (see CVs below):

  • Chair: Kostas Pentikousis (Business Development Manager, Travelping, Germany)
  • Antje Williams (Executive Program Manager, DTAG, Germany)
  • Dirk Trossen (Senior Principal Engineer, InterDigital Europe, United Kingdom)
  • Navid Nikaein (Professor, EURECOM, France)
  • Rebecca Steinert (Research Leader, RISE SICS, Sweden)

Kostas Pentikousis

Kostas Pentikousis has 20 years of experience in computer networking, including a decade-long presence in the telecommunications area. As business development manager at Travelping, a German privately-held SME, he works with specialists to enable carriers to make the most out of their network investments through innovative solutions based on standards and open source software. He is the co-inventor of two patents, editor/author/contributor of 7 RFCs, and has published more than 100 peer-reviewed journal articles, conference papers and book chapters. Earlier, Kostas held software development, network research, and project and line management positions in Greece, the United States, Finland, and Germany. Kostas holds a PhD in computer science from Stony Brook University.

Presentation available!

Antje Williams

Antje Williams is appointed as Executive Program Manager for 5G since January 2015. The 5G program within Deutsche Telekom is a holistic approach and aligns and drives all activities around 5G within the company including Architecture, Business, Standardization, Industry fora like NGMN, GSMA, European initiatives as 5GPPP, Finance, Communication and the 5G:haus (Telekom´s test bed for 5G). In 2018 the Network Slicing Association was founded and Antje is the Chair person of the Association. Members are China Power Grid, China Mobile, Digital Domain, Fraunhofer Focus, Huawei, Telekom Italia, Tencent and Volkswagen.
Prior to this role Antje became Head of Inflight Connectivity and Managing Director of T-Mobile HotSpot GmbH (subsidiary of Deutsche Telekom). She was responsible offering WiFi access on board of 15 airlines (in 2014). Before joining the Inflight Team Antje was Head of Sales for the national Wholesale Department in Southern Germany for five years. She was responsible for the fixed line business with customers as Telefónica Germany, Kabeldeutschland, BT Germany among others. Antje started in 2001 in the Legal Department of Deutsche Telekom.

Presentation available!

Dirk Trossen

Dirk Trossen is a Senior Principal Engineer at InterDigital Europe, the European branch of InterDigital Inc. He has been leading the network team through various H2020 engagements. He is currently technical leading the European efforts POINT and RIFE, performing ICN research with the goal of evolutionary introduction of ICN concepts in upcoming 5G networks. He is also leading the recently started H2020 FLAME project in the space of establishing 5G-ready experimental platforms for Future Media Internet. Dirk has more than 15 years of experience in network architectures, services and wireless technology. His main contributions can be found in the area of inter-domain networking as well as seamless handovers and new service concepts for operators. Prior to joining InterDigital, Dirk was co-founder of TecVis LP, a UK-based software solution company in the mobile, context-aware solution space and he held prior positions as a Senior Researcher with Cambridge University, Chief Researcher with BT Research and as a Principal Scientist at Nokia Research. He is also a research affiliate with the Advanced Network Architecture group at MIT CSAIL. He holds a Ph.D. degree in Computer Science from Technical University of Aachen, Germany. He published more than 80 peer-reviewed papers in international conferences and journals and has currently 32 international patents.

Presentation available!

 Navid Nikaein

Navid Nikaein is an Assistant Professor in Communication System Department at Eurecom. He received his Ph.D. degree in communication systems from the Swiss Federal Institute of Technology EPFL in 2003. He is leading a research group focusing on experimental system research related to wireless systems and networking and opensource platforms for 5G. Broadly, his research contributions are in the areas of wireless access layer techniques, networking protocols and architectures, flexible RAN/CN following SDN, NFV, MEC design principles, and wireless network prototyping and emulation/simulation platforms. He is also very active in collaborative research projects related to 5G and beyond in the context of European FP6, FP7, H2020 framework programmes. He is also leading the development of the radio access layer of and its evolution towards 5G as well as coordinating the initiative to deliver agile 4G/5G service delivery platforms.

Presentation available!

Rebecca Steinert

Rebecca Steinert is the leader of the Network Intelligence group at the DNA lab, RISE SICS. Rebecca Steinert and her research group offer expertise on applied machine learning and data analytics for management and monitoring of networking infrastructures and services in combination with systems-oriented solutions for software-defined networks, virtualization and service chaining. She has extensive experience in leading research teams in national (currently SSF Time-Critical Clouds) and international projects (e.g. FP7 4WARD, SAIL, UNIFY and H2020 COHERENT). She is also actively involved in the EU H2020 initiative of the Next Generation Internet (NGI). Since 2002 she holds a B. Sc. in real-time systems, and joined RISE SICS in 2006. She received her M.Sc. degree from KTH (Royal Institute of Technology, Stockholm) in computer science with emphasis on autonomous systems and machine learning in 2008. In 2014 Rebecca Steinert finished her PhD in probabilistic fault management and performance monitoring in networked systems.

Presentation available!