Title: 5G - Mobile Communications for 2020
Instructors: André Barreto, Robson Vieira, Erika Almeida, Rafhael Amorim, Bruno Faria
Nokia Institute of Technology – INDT.
Abstract: The fourth generation (4G) of mobile communication systems, which is based on the 3GPP-LTE technology, in spite of being rapidly deployed, probably will not be able to meet all the requirements for the wireless communications systems and services for the 2020s, like the exponential traffic growth, reduced latency, and the support for a huge number of terminals, e.g. due to the advent of the Internet of Things. New paradigms are needed, and worldwide efforts are being made for defining the fifth generation (5G) of these systems. Particularly, 5G will rely on a massive network densification for a better utilization of the spatial dimension, as well as on a search for more spectrum, mainly in the centimeter- and millimeter-wave ranges. These approaches bring uncountable challenges and, in spite of the inexistence of definite solutions so far, a number of currently proposed schemes will be further explored and refined in the next few years, so that the vision of fast, efficient and ubiquitous mobile communications becomes a reality in the 2020s. In this tutorial we will describe the scenarios related to this vision and their requirements, showing the main techniques that are in discussion by several international forums as candidates for future standards. Although there are challenges in the network architecture, air interface and hardware, our focus will be in lower layers (PHY, RLC, MAC), which are likely to be the bottleneck for achieving the objectives of the fifth generation.