At the recent Network of the Future conference held at King’s College London, this question was asked of a distinguished panel of academics and industrialists. The TCP/IP protocol was developed in the 1970's much before the internet and web became ubiquitous in the 2000's and before the dominance of multimedia applications. When TCP/IP was developed, only text and data traffic was anticipated and was optimized as such. The question is whether those protocols are adequate to meeting the new requirements of present day applications. This trend is only going to gain more momentum with the arrival of 5G networks. Professors Jaafar Elmirghani (Leeds), Josef Noll (Oslo) and Arto Karila (Aalto) joined William Webb (Weightless) and Kevin Smith (Vodafone) to debate the issue, which was moderated by Nigel Jefferies and Sudhir Dixit from WWRF.
Prof. Jaafar Elmirghani - IP and power consumption
Josef Noll - Sustainable development in the network of the future
Arto Karila - IP over ICN
Prof. William Webb - When every bit it a bit closer to death
Kevin Smith - We need to talk about TCP/IP
The idea of the panel was to discuss the importance of 5G for the vertical market; how 5G can be used to support different vertical markets, and which technologies and other qualities in 5G allow it to be customizable for different verticals. The panel was arranged and chaired by Anthony C.K. Soong, Huawei Technologies with the following panelists:
Amitava Ghosh, Nokia Bell Labs, Abhijit Navalekar, Qualcomm, Knud Erik Skouby, Aalborg University and WWRF, Takayuki Shimizu, Toyota and Rath Vannithamby, Intel
Anthony started out setting the scene with the general 5G propositions: we need Super-Fast, Super-Efficient, Super Flexible Wireless Network in a world where everything is mobile, connected and ‘cloudificated’.
The panel then discussed amongst others the following questions
- How does the 3GPP 5G Architecture enable the flexible delivery of services for different verticals?
- Do we need E2E awareness and control of resources in the dimensions of compute, storage and communication?
- How does the 5G air interface allow for the optimization for different verticals? What are the key enablers?
- Do you think the KPI’s for 5G verticals are currently well defined? If not, how do we defined a system for KPI’s that we do not know?
- What do you think are the key verticals for 5G? which will be among the first ones we need to design for?
- How will 5G impact the verticals markets such as the automotive or Health care?
- What is a slice? How is a slice to be instantiated in the network?
- What is WWRF doing to enable 5G vertical support?
The questions provoked a lively and rich discussion involving the audience even if a clear-cut conclusion was only reached on few of the questions. These included mainly the last two in the row:
- Network slicing is a quality enabling multiple (‘independent’) logical networks on top of a common shared physical infrastructure.
- WWRF has started working groups; published white papers; initiated so-called 5G Huddles around the world addressing key issues enabling and barring 5G vertical support (see wwrf.ch).
The workshop had the theme “From 4G to Beyond 5G (B5G) Systems: Expectations, Realities and Disruptions” and the following panelists:
- Reinaldo Valenzuela, Nokia Bell Labs
- Derek McAvoy, Bell Canada
- Geoffrey Ye Li, Georgia Institute of Technology
- Catherine Rosenberg, University of Waterloo
- Simon Haykin, McMaster University
- Alberto Leon-Garcia, University of Toronto
- Alexander Maltsev, Andrey Pudeyev, Ilya Bolotin, Intel; Olesya Bolkhovskaya, University of Nizhny Novgorod
The sessions were chaired by Vino Vinodrai and Sudhir Dixit, both members of WWRF. Angeliki Alexiou and Vinod Kumar both of WWRF were organizers of the workshop besides Vino and Sudhir.
The speakers deliberated where the wireless and mobile technologies have been, where they are, and what needs to happen to match the expectations with realities and where are the gaps to fulfill those promises as we develop successive generations of wireless standards. The workshop addressed these topics concerning the gap between the near-term commercial deployments of LTE-A, LTE-A Pro, and the longer-term vision of 5G and Beyond systems.
The workshop was run in parallel with other VTC sessions but attracted over 60 people. The conference organizers informed WWRF that they received excellent feedback about the Workshop.
Amongst the highlights was a lively debate between Catherine Rosenberg and an audience member on centralized versus distributed control. Another highlight was Simon Haykin's masterly storytelling of his presentation - his talk was inspirational and passionate and hit the important but challenging points of control and cognition in future disruptive wireless networks, while Derek McAvoy outlined the challenges that service providers will face in implanting new network.
Look out for future WWRF workshops at major conferences, including the future of IP at the Network of the Future conference in London in November (http://www.network-of-the-future.org/) and 5G for the water industry at IEEE WCNC next year (http://www.network-of-the-future.org/).