Seminar on 4G Wireless System

1. A Seminar on
4G WIRELESS SYSTEM
Presented By
Mr. Kedar Sanjay Damkondwar
Under the guidance of
Mr. Ramdasi S.
Gramin Polytechnic Vishnupuri,Nanded.
Department of Computer Engineering.

2.  Cellular Networks
 Wireless local area network

3. Evolved from mobile telephone as voice
conversation and communication tools for private
and business uses

4. Emerged from computer network. It helps
business user to expand their service areas
by using LAN (faster data transport)

5.  1g Wireless System :Developed in 1980s and
completed in early 1990’s
 2g Wireless System :The 2G phase began in
the 1990s and much of this technology is still
in use.
 3g Wireless System :It was developed in the
late 1990s until present day,Japan is the first
country having introduced 3G nationally

6.  Services include:
◦ Global roaming
◦ Superior voice quality and video conference
◦ Information for web surfing, music, news, corporate
intranet, transportation service etc
◦ Transmission speeds from 125kbps to 2Mbps

7.  High input fees for the 3G service licenses
 Inefficient to meet needs of future high-
performance
 Multiple standards for 3G
 Require wider bandwidth
 Lack of coverage because it is still new
service

8. 4G technologies are sometimes referred to by
the acronym "MAGIC," which stands for
Mobile multimedia, Anytime/any-where,
Global mobility support, Integrated wireless
and Customized personal service.

9.  TDMA :Time Division Multiple Access, is a
technique for dividing the time domain up
into sub channels for use by multiple devices.
 CDMA :Code Division Multiple Access, allows
every device in a cell to transmit over the
entire bandwidth at all times.

10.  Ultra Wide Band Networks :Ultra Wideband
technology, or UWB, is an advanced
transmission technology that can be used in
the implementation of a 4G network.
 Smart Antennas :: Multiple “smart antennas”
can be employed to help find, tune, and turn
up signal information

11.  Localized/Personalized Information
 Organizational services
 Communications services and applications
 Entertainment services
 Mobile commerce (M-Commerce )

12.  Support interactive multimedia
 User friendliness
 High speed, high capacity and low cost per bit
 Higher band widths
 Terminal Heterogeneity
 Network Heterogeneity

13. Major
Requirement 3g 4g
Speed 384 Kbps to 2 Mbp
s
20 to 100 Mb
ps
Frequency Band Dependent on count
ry
Higher frequency band
s (2-8 GHz)
Bandwidth 5-20 MHz 100 MHz (or more)
Switching Design Bas
is
All digital with packetiz
ed voice
Access Technologies
Circuit and Pack
et
W-CDMA OFDM and MC-CDMA

14.  4G will be a Convergence Platform providing clear
advantages in terms of Coverage, Bandwidth,
Power Consumption, variety of Services, ranging
from Pop-Up advertisements to Location-Based
services and IP Data casting ones.

15. Thanks…..
7/20/2017 15