Why we need a new air interface for 5G

  • Berna S.
  • Schaich F.
  • Schubert M.

Wireless communications has been renewed about every decade since the introduction of 2G (GSM - Global System for Mobile Communications [1]) - the first digital wireless communication system. Around 1990 GSM became widespread and offered voice services around the globe. With the rising success of the world wide web the key driver for the next generation of wireless access was the wish to provide data services. So, around 2000 3G (UMTS - Universal Mobile Telecommunications System [2]) made this a reality. A major improvement for providing internet services on the move was the introduction of 4G (LTE - Long Term Evolution [3]). The roll-out of LTE began around 2010. Following this periodicity we may expect 2020 the introduction of 5G. Naturally, the introduction of a new technology generation not only follows historical regularities, but requires market needs and forecasts asking for such an introduction. On the one side, current market forecasts indicate the clear necessity [4, 5]. More precisely, the demand for Mobile BroadBand (MBB) data is predicted to increase by ???, an evolution which cannot clearly be handled by 4G [4]. On the other side, looking at the current market status, we see that the Information and Communications Technologies (ICT) landscape is going through a continuous and accelerating transformation. This transformation has a significant impact on economic and societal growth which is enabled by new trends and emerging concepts, such as fully integrated wearable/modular user devices, "zero distance" and "full immersive" services , ubiquitous access to globally connected knowledge and social media etc. Wireless connectivity/communication anywhere, anytime and between every-body and -object (smart houses, cars, cities etc.) is becoming a reality in our daily lives. We can even see the impacts of this transformation on working practice since it increases the efficiency by connecting anything at any time: people, machines, communities, physical things, processes, content etc. in flexible, reliable and secure ways.

Recent Publications

August 09, 2017

A Cloud Native Approach to 5G Network Slicing

  • Francini A.
  • Miller R.
  • Sharma S.

5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

August 01, 2017

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
  • Wang H.
  • Wu Q.

Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

July 12, 2017

PrivApprox: Privacy-Preserving Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Le D.
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe

How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...