This document discusses potential technologies for 5G communication networks, including: 1. Network densification through ultra dense heterogeneous networks using small cells and multi-hop relaying to improve coverage and capacity. 2. Utilization of new spectrum bands, including millimeter wave frequencies above 6 GHz and visible light communication, to provide additional bandwidth for 5G. 3. Implementation of massive MIMO technology using large antenna arrays to focus transmissions and improve spectral efficiency.

1. 5G Communication: Potential Technologies
Tadilo Endeshaw Bogale
Institute National de la Recherche Scientifique (INRS) and
University of Western Ontario (UWO), Canada

2. 1 History of Cellular Systems
2 New Use cases and Data rate predictions for 5G
3 ITU requirements for 5G
4 Potential Technologies
Tadilo (INRS and UWO) 5G Communication 2 / 8

3. History of Cellular Systems
Cellular Communication Timeline
DOCOMO Innovations, Inc. confidential
It’s time to think about 5G
3/24/2014 © 2014 DOCOMO Innovations, Inc. All rights reserved. 3
2000s
2000 2005 2010
LTE/LTE‐Advanced
4GOFDMA/SCFDMA
100M-1Gbps Experiments
Super3G Concept
3G
1980 1985 1990
1G
Analogue
Cellular
TDMA
Concept
GSM/
PDC/
TDMA
2G
Paper by Dr. Kinoshita
ICC’81 and IEEE Trans. VT, 1982
1980s
2010s
2010 2015 2020
Now4G 5G?
1990s
1990
2G
1995 2000
WCDMA
2Mbps Experiments
3G
WCDMA/
CDMA2000
10Gbps Experiments at 11GHz
CDMA
concept
Tadilo (INRS and UWO) 5G Communication 3 / 8

4. New Use cases and Data rate predictions for 5G
5G Use cases
SD
Smart home
Intellegent transport
IoT devices
Smart city
ICT
Cloud
5G use cases
Tadilo (INRS and UWO) 5G Communication 4 / 8

5. New Use cases and Data rate predictions for 5G
Data rate prediction
Predictions for the Future
work Traffic Growth
nual data traffic growth
han in the past!
ntial increase
ation: 20x until 2020
200x until 2025
2000x until 2030
210 MB/month/person
2.2 GB/person/month
Tadilo (INRS and UWO) 5G Communication 4 / 8

6. ITU requirements for 5G
ITU Requirements
ITU Requirements for IMT-Future 19
Non-confidential – Public © eXplanoTech Ltd.
Attribute IMT-Advanced
4G
IMT-Future
5G
Achievable
Rates (Mbps)
1Gbps 10-50Gbps
Connection
Density
106-107/km2
Mobility &
Coverage
350km/h 500km/h
Energy
Efficiency
1x 50-100x
Spectral
Efficiency
1x 5-15x
Latency 10ms 1ms
Possible Approaches
♦ Requirement: 1000X Capacity
Network Density (10X)
New Spectrum (10X)
Multiple antenna (10X)
Tadilo (INRS and UWO) 5G Communication 5 / 8

7. Potential Technologies Network Densification
Typical cellular network
Desired signal
Interference
Tadilo (INRS and UWO) 5G Communication 6 / 8

8. Potential Technologies Network Densification
Ultra dense HetNet
What are ultra-dense Hetnets?
© eXplanoTech Ltd. - www.explanotech.com - training@explanotech.com 15
Ultra dense
deployment
Multi-hop
deployment
Industrial
Automation Vehicle to vehicle
deployment
Relaying
deployment
Military
deployment
Multiple carriers
Different technologies
Tadilo (INRS and UWO) 5G Communication 6 / 8

9. Potential Technologies New spectrum
New spectrum
3
5G will Aggregate All Bands
10 50403020 60 8070 901 542 63
5G Complementary Bands for Capacity, 45GHz available5G Primary bands
GHz
Cellular
Bands
Visible
Light
WRC-15 WRC-19
Acquire >500MHz
in sub @6G
45GHz available
for future Cellular Access and Self-Backhaul
Pr ∝ λ2Pt
Tadilo (INRS and UWO) 5G Communication 7 / 8

10. Potential Technologies Massive MIMO
MIMO Analogy
Right Sound
Left Sound
Detect left+right sound
b
c
d
a
ax+cybx+dy
y
x
H =
a b
c d
Massive MIMO
MIMO Headed?
Massive MIMO
ed MIMO
Tadilo (INRS and UWO) 5G Communication 8 / 8