4G is the fourth generation of cellular communications that provides significantly faster data transfer speeds than 3G, up to 100 Mbps for high mobility and 1 Gbps for low mobility. It uses an all-IP packet switched network and utilizes technologies like LTE, WiMAX, OFDM, and software defined radios. 4G enables many new applications like virtual presence, navigation, telemedicine and provides advantages like high usability, support for multimedia, and higher bandwidth, but also has disadvantages like higher costs and more battery usage.

1. Presentation by
:
Bhuvaneshwari
And
Purnima

2. OVERVIEW:
o What is 4G ?
o Evolution of 4G
o Features
o 4G hardware and software
o Technologies
o Applications
o Advantages and Disadvantages
o Conclusion

3. Evolution of Mobile technology :
o 1G-First Generation
• Speech
o 2G-Second Generation
• SMS , MMS
• CDMA , GPRS , EDGE
• Voice Mail
o 3G-Third Generation
• Wireless Internet
• Video Calling
• Mobile TV

4. What is 4G ?
o Fourth Generation of Cellular
Communications .
o Beyond 3G .
o Data transfer rate up to 100
Mbps for high mobility
and 1 Gbps for low mobility .

5. What’s new in 4G ?
o IP (Internet
Protocol) based
mobile systems.
o Entirely packet-
switched networks.
o Digital in nature
o Wider Bandwidths
100Mhz

6. o 10 times faster than current 3G
o Global mobility and service
portability.
o User Friendly.
MAGIC :
M : Mobile Multimedia
A : Anytime / Anywhere
G : Global Mobility Support
I : Integrated
C : Customized Personal Network

7. 4G Hardware :
o Ultra Wide Band Networks
o Smart Antennas
4G Software :
o Software Defined Radio
o Packet Layers
o Packets

8. Technology Standards :
• WiMAX ,LTE
• The advantages of LTE are:
(i) 100 Mbps - download & 50 Mbps –
upload
(ii) It offers both FDD and TDD duplexing
(iii) Uses OFDM

9. WIMAX:
o WiMax technology might not
achieve the required rate in a high-
density area .
o useful when it is bundled with IPTV.
o The wireless bandwidth will be
roughly 3Mbps/1.5Mbps; but this is
nowhere near the 100Mbps/50Mbps
that LTE promises

10. OFDM :
• OFDM stands for
Orthogonal
Frequency Division
Multiplexing.
• It distributes the
data over a
large number of
carriers that are
spaced apart at
precise

11. How 4G Works ?
• The IP address is based on IPv6.
• IPv4: X.X.X.X (32 bits)
example: 216.37.129.9
• IPv6: 4 × IPv4 (128 bits)
• example:
216.37.129.9 , 79.23.178.229 , 65.198.2.10
, 192.168.5.120
Home Care of Mobile IP Local network
Address Address address address

12. Applications :
• Virtual Presence
• Virtual Navigation
• Crisis Management Application
• Telegeoprocessing, telemedicine
• Security

13. Advantages :
• High usability: anytime, anywhere, and
with any technology.
• Support for multimedia services at low
transmission cost.
• Higher bandwidth, tight network security.
Disadvantages :
• Expensive.
• Battery uses are more.
• Hard to implement