Based on current
trends, it is generally understood that 5G mobile networks must address six challenges
that are not adequately addressed by state-of-the-art deployed networks (Long
Term Evolution-Advanced, LTE-A): higher capacity, higher data rate, lower E2E
latency, massive device connectivity, reduced capital and operations cost, and consistent
QoE provisioning. These challenges are shown in the schematic here, together
with some potential enablers to address them. The figure provides an overview
of the challenges, enablers and corresponding design principles for 5G. It must
be noted that the enablers highlighted in the figure also introduce their own
set of challenges and corresponding key performance indicators (KPIs).
Adopted
from an IEEE article by Patrick Kwadwo Agyapong, Mikio Iwamura, Dirk Staehle,
Wolfgang Kiess, and Anass Benjebbour
