5G networks will offer faster speeds and more reliable connections than previous generations of mobile technology. 5G will require hundreds of thousands of new small cell antennas and use new spectrum bands like millimeter waves. Technologies like beamforming and full duplexing will help 5G networks transmit targeted signals and increase capacity. While 5G promises major benefits, some are concerned about potential health risks from increased exposure to electromagnetic radiation.

1. presented by :
Oishi Mustafi
B. P. Poddar Institute of Management & Technology
Department of Computer Science and Engineering
Student PPT Presentation
for partial fulfilment of grading of course
Seminar (CS681)
5G NETWORKS

3.  5G networks are the next generation of mobile internet
connectivity, offering faster speeds and more reliable
connections on smartphones and other devices than
ever before.
 Combining cutting-edge network technology and the
very latest research, 5G should offer connections that
are multitudes faster than current connections, with
average download speeds of around 1GBps expected to
soon be the norm.
 The networks will help power a huge rise in Internet of
Things technology, providing the infrastructure needed
to carry huge amounts of data, allowing for a smarter
and more connected world.

5. SMALL CELLS
5G will require the buildout of literally hundreds of thousands
of new wireless antennas in neighborhoods, cities and towns.
The purpose of this massive infrastructure build out of small cells,
distributed antennae systems and microcells is to increase range and
capacity in populated urban areas and prepare for the future 5G rollout.
MULTIMETER WAVES
Today’s wireless networks More people and devices are
consuming more data than ever before, but it remains
crammed on the same bands of the radio-frequency spectrum that
mobile providers have always used. One way to get around that problem
is to simply transmit signals on a whole new swath of the spectrum, one
that’s never been used for mobile service before. That’s why providers
are experimenting with broadcasting on millimeter waves, which use
higher frequencies than the radio waves that have long been used for
mobile phones.

6. BEAMFORMING
Beamforming is a traffic-signaling system for cellular base
stations that identifies the most efficient data-delivery
route to a particular user, and it reduces interference for nearby users in
the process. Depending on the situation and the technology, there are
several ways for 5G networks to implement it. Beamforming can help by
focusing a signal in a concentrated beam that points only in the direction
of a user, rather than broadcasting in many directions at once.
With 5G, a transceiver will be able to transmit and
receive data at the same time, on the same frequency. This
technology is known as full duplex, and it could double the capacity of
wireless networks at their most fundamental physical layer.
FULL DUPLEX

7. Open
Mobile
Programmable
Agile
Sustainable
Scalable
Secure
Reliable
Standardized
Flexibility Robustness
Expectations from 5G Networks
10

8. 1. Less traffic
2. 25 Mbps connectivity speed
3. Uploading & Downloading
speed of 5G touching the
peak(up to 1 Gbps)
4. Better & fast solution
5. Consume low battery
6. Better coverage

9. COMPARISON OF 1G TO 5G TECHNOLOGIES
Technology 1G 2G/2.5G 3G 4G
5G
Deployment 1970/1984 1980/1999 1990/2002 2000/2010 2014/2015
Bandwidth 2kbps 14-64kbps 2mbps 200mbps >1gbps
Technology Analog
cellular
Digital
cellular
Broadband
width/cdma /
ip technology
Unified ip &seamless
combo of
LAN/WAN/WLAN/PA
N
4G+WWWW
Service Mobile
telephony
Digital
voice,short
messaging
Integrated high
quality audio,
video & data
Dynamic
information
access, variable
devices
Dynamic information
access, variable
devices
with AI capabilities
Multiplexing FDMA TDMA/CDMA CDMA CDMA CDMA
Switching Circuit Circuit/circuit for
access network&air
interface
Packet except
for air
interface
All packet All packet
Core
network
PSTN PSTN Packet
network
Internet Internet
Handoff Horizontal Horizontal Horizontal Horizontal&
Vertical
Horizontal&
Vertical

10. Broadband experience
everywhere anytime
Massive Machine
Type Communication
Critical Machine
Type Communication
Mass market
personalized TV
5G Top Use Cases

12. FRIGHTENING FREQUENCIES: THE DANGERS OF 5G
High-frequency MMWs travel a short distance. They don’t travel well through
buildings and tend to be absorbed by rain and plants, leading to signal
interference. Thus, the necessary infrastructure would require many smaller,
barely noticeable cell towers situated closer together, with more input and output
ports than there are on the much larger, easier to see 4G towers. This would
likely result in wireless antennas every few feet, on every lamp post and utility
pole in your neighbourhood.
 Serious health concerns
The strongest concern involves adverse effects of MMWs on human skin. Over
ninety percent of microwave radiation is absorbed by the epidermis and dermis
layers, so human skin basically acts as an absorbing sponge for microwave
radiation. It stands to reason that our bodies will become far more conductive to
this radiation.
 5G harms the planet, too
First, MMWs may pose a serious threat to plant health. Plant irradiation is bad
news for the planet’s flora, but it’s bad news for us, too: it could contaminate our
food supply. Second, the 5G infrastructure would pose a threat to our planet’s
atmosphere. Network implementation will require the deployment of many, short-
lifespan satellites via suborbital rockets propelled by hydrocarbon rocket engines.
Third, 5G will potentially threaten natural ecosystems. Non-ionizing microwave
radiation affects bird and bee health.

13.  5G technology is expected to officially
launch across the world by 2020, with
testbeds in the US and UK already live
 - The US, China and South Korea are
expected to be some of the first nations to
deploy 5G networks, with the UK not far
behind
 - Many companies are busy making sure their
networks and devices are '5G ready' in time
for 2020, meaning some networks may
launch before then

14. With 5G technologies, engineers hope to build the wireless network
that future smartphone users, VR gamers, and autonomous cars will
rely on every day. Already, researchers and companies have set high
expectations for 5G by promising ultralow latency and record-breaking
data speeds for consumers. If they can solve the remaining challenges,
and figure out how to make all these systems work together, ultrafast
5G service could reach consumers in the next five years.

15.  https://spectrum.ieee.org/video/telecom/wireless/everything-
you-need-to-know-about-5g
 https://en.wikipedia.org/wiki/5G
 https://www.techradar.com/news/what-is-5g-everything-you-
need-to-know