4G communication systems will provide integrated wireless networks for voice, data and multimedia with speeds up to 1Gbps. 4G aims to deliver seamless global connectivity through fully IP-based networks. It will allow broadband access anywhere by creating hybrid networks using technologies like ad-hoc networking. Major companies are working to launch initial 4G networks by 2008-2010 which will enhance mobile applications like gaming with low latency.

2. 4G COMMUNICATION
SYSTEMS IN DIGITAL
ENVIRONMENT
Dheeraj Singh Negi

3. 4G DEFINITION
4G is not one defined technology or
standard, but rather a collection of
technologies at creating fully packet-
switched networks optimized for data.
4G Networks are projected to provide
speed of 100Mbps while moving and
1Gbps while stationary.

4. INTRODUCTION
 4G, also known as
Beyond 3G, is a term
used to describe the
next step in wireless
communications
 Provides
comprehensive IP
solution where voice,
data and streamed
multimedia can be
given to users on an
"Anytime, Anywhere"
basis
 4G will be a fully IP
based integrated
system

5. EVOLUTION OF COMMUNICATIONS
NETWORKS
 First Generation: An analog system where
voice was considered to be the main traffic
 Second Generation: All standards in this form
are digital in form(GSM, IDEN)
 3G: The systems in this standard are
essentially a linear enhancement of 2G
systems
 2.75 G; 3G; 3.5G; 3G post
 4G: the infrastructure and the terminals of 4G
will have almost all the standards from 2G to
4G implemented

6. OBJECTIVES
 High network capacity: more
simultaneous users per cell
 A data rate of at least 100 Mbit/s between
any two points in the world
 Seamless connectivity and global roaming
across multiple networks
 High quality of service for next generation
multimedia support

7. USERS OF 4G
• The Japanese company NTT DoCoMo has
been testing a 4G communication system
prototype and is planning to release the
first commercial network in 2010
• Digiweb, an Irish wireless broadband
company recently started to use it
• Verizon Wireless and Vodafone are
getting together to establish 4g networks
soon.
• Sprint also announced that it is going to
launch it in 2008

8. COMMUNICATIONS
ARCHITECTURE
 Broadcast layer:
 fix access points, (i.e.) cell tower connected by fiber,
microwave, or satellite (ISP)
 Ad-hoc/hot-spot layer:
 wireless LANs (i.e. internet at Starbuck’s)

9. COMMUNICATIONS
ARCHITECTURE
 Personal Layer Gateway:
devices that connect to upper layers; cell
phone, fax, voice, data modem, MP3 players,
PDAs
 Info-Sensor layer:
environmental sensors
 Fiber-optic wire layer:
high speed subterranean labyrinth of fiber
optic cables and repeaters

10. AD HOC NETWORKS
 Spontaneous self
organization of networks of
devices
 Not necessarily connected
to internet
 4G will create hybrid
wireless networks using Ad
Hoc networks
 Form of mesh networking–
Very reliable

11. ENHANCE MOBILE GAMING
Experience enhance wireless
capabilities that deliver mobile gaming
interaction with less than five seconds
Play online multi player games while
traveling at high speeds or sitting
outside

12. BROADBAND ACCESS IN REMOTE
LOCATION
 4G will provide a wireless alternative for
broadband access
 I will provide first opportunity for broadband
access in remote locations without an
infrastructure to support cable or DSL access.

13. THANKING YOU