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Artificial intelligence for optimized mobile communication

AI will serve to develop a network control system that not only
detects and reacts to problems but can also predict and avoid them.
Credit: CC0 Public Domain

While many European states are currently setting up the 5th
generation of mobile communication, scientists are already working
on its optimization. Although 5G is far superior to its
predecessors, even the latest mobile communication standard still
has room for improvement: Especially in urban areas, where a direct
line of sight between emitter and transceiver is difficult, the
radio link does not yet function reliably. Within the recently
launched EU project ARIADNE, eleven European partners are
researching how an advanced system architecture “beyond 5G” can be
developed by using high frequency bands and artificial
intelligence.

A major advantage of 5G is its high frequencies and consequently
its high transmission rate, which ensures an almost latency-free
connection and fast data transfer. However, high frequencies
require a directed system, which in most cases relies on a line of
sight (LOS). This means that transmitter and receiver must be able
to see each other. Unfortunately, the LOS principle can lead to
connection problems, especially in urban and heavily developed
areas.

One of the issues responsible for these connection problems in
local 5G networks is the cancelling effect. This effect occurs when
a signal is transmitted over a LOS connection and simultaneously
copied via reflections. The copy overrides the signal from the LOS
and cancels it. The result: the signal does not reach the receiver.
This multipath propagation via non-line of sight (NLOS) remains a
problem for 5G, as it did with its predecessor 4G. For this reason,
one of the main aims of ARIADNE is the development of new concepts
for better control of LOS and NLOS scenarios to massively improve
the reliability of mobile communication links.

Higher efficiency and reliability of 5G

The EU Project, with the full title “Artificial Intelligence
Aided D-band Network for 5G Long Term Evolution” brings together
partners from research and industry from five countries. The aim is
to develop energy-efficient and reliable mobile communication links
based on frequencies in the D-band (130—174,8 GHz). With its
aggregated bandwidth of more than 30 GHz, the D-band is perfectly
suited for fast data transmission. However, this newly used band is
divided into several sub-bands and requires an adaptation of the
previously used system architecture and corresponding network
control.

ARIADNE aims to create an intelligent communication system
“beyond 5G” by combining an innovative high-frequency radio
architecture and a new network processing concept based on
artificial intelligence. By 2022, the project consortium plans to
realize and demonstrate a radio link with extremely high data rates
in the 100 Gbit/s range at almost zero latency. The European Union
supports the project as part of the Horizon 2020 program. ARIADNE
focuses on three major research areas: the development of hardware
components, the research of metasurfaces and the adaptation of the
network control based on artificial intelligence ormachine
learning
.


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Originally published by
by Fraunhofer Institute for Applied Solid State Physics | May 25,
2020
TechXplore