computer networks ppt by manthan bariya cellular technology and generations of networks

1. CELLULAR
TECHNOLOGY
COMPUTER NETWORK

2. AGENDA
Introduction​
Mobile communication system
​Generations

3. INTRODUCTION
CELLULAR TECHNOLOGY
• The development of information and communication technology is
very fast.
• Communication use cables becoming abandoned.
• Humans are no dependent on technology 'wires’.
• Wireless networks have shifted the role of a wired network .
• By carrying excellence in practicality, efficiency and effectiveness, the
wireless network has been successfully satisfy its user.
CELLULAR TECHNOLOGY 3

4. CELLULAR
TECHNOLOGY
Cellular network technology evolved from analog to digital systems,
from circuit switching into packet switching.
The evolution of mobile technology is divided into:
• 1G: AMPS (Advanced Mobile Phone System)
• 2G: GSM (Global System for Mobile Communication)
• 2.5G: GPRS (General Packet Radio System)
• 3G: UMTS (Universal Mobile Telecommunication System)
• 3.5G: HSDPA (High Speed Downlink Packet Access)
• 4G: LTE (Long Term Evolution)
CELLULAR TECHNOLOGY 4

5. GENERATIONS
CELLULAR TECHNOLOGY

6. MOBILE COMMUNICATION
SYSTEM
CELLULAR TECHNOLOGY 6
Requirement
• There is at least one mobile terminal in communication
at the beginning
• High transmit power
• Antenna as high as possible
• Cell coverage profuse
• Handoff concept does not exist

7. GENERATIONS
CELLULAR TECHNOLOGY
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8. 1G: AMPS (ADVANCED MOBILE
PHONE SYSTEM)
• AMPS is the first generation of cellular
technology
• Using analog technology and serve only voice
communications
• Work on the 800 MHz frequency band
• Access method use FDMA (Frequency Division
Multiple Access).
• AMPS technology start to be used in 1970 as
the invention of the microprocessor for
wireless communication
• The increasing number of customers can not
be accommodated first generation.
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9. 2G: GSM (GLOBAL SYSTEM FOR
MOBILE COMMUNICATION)
GSM Frame Structure
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10. 2.5G: GPRS (GENERAL PACKET
RADIO SYSTEM)
GPRS network is a result of the development of
GSM
Theoretically, the data rate can reach kbps and the
actual data rate can be approximately 115 kbps.
GPRS is a technology that is “always on”, meaning
that the user is always connected and does not
need to dial up to gain the connection again.
The total cost will be charged based only on the
amount of data transmitted
GPRS technology enables accessing of the Internet
via mobile telephone
GPRS is developed using GSM technology and
therefore the speed of data for Internet connection
using GPRS is not quite satisfactory.
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11. 3G: UMTS (UNIVERSAL MOBILE
TELEPHONE STANDARD)
This generation is better known as WCDMA
(Wideband - Coded Division Multiple Access).
Data transmission rates up to 2 Mbps offered to
fixed users with a wide bandwidth of 5 MHz .
The user is allowed to get varied bandwidth
according to the user demand which is one of the
excellent features of UMTS networks.
One of the most famous examples of services, 3G
video call which is the image of our friends talk
can be seen from our 3G mobile phone .
Other services are, video conferencing, video
streaming, both for Live TV and video portal,
Video Mail, PC to Mobile, and Internet Browsing.
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12. 3.5G: HSDPA (HIGH SPEED DOWNLINK
PACKET ACCESS)
• HSDPA is an evolution of UMTS, HSDPA network architecture that still
use the UMTS network architecture .
• Technology 3.5 G or also called super 3G is an improvement of the 3G
technology, especially in increasing the speed of data transfer over 3G
technology (> 2 Mbps) so that it can serve multimedia communications
such as Internet access and video sharing .
• The main purpose of HSDPA is to increase the capacity of the transmitted
data packet and reduce the delay of a data packet transmission .
• In the Indonesian market was at the 3.5G technology, which for the
generation 4G can not be implemented because not get permission to
use the frequency of government (still under preparation)
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13. 4G: LTE (LONG TERM EVOLUTION)
• In IP-based 4G technology will be capable of
integrating the entire system and the existing network
.
• Which may be given access speed 4G fluttering from
100 Mbps to 1 Gbps, both indoors and outdoors with
QoS (Quality of Service) are guaranteed a good,
guaranteed security system, and the delivery of real-
time information, wherever and whenever.
• 4G technology is expected to meet the needs of
wireless applications, such as mobile TV, HDTV, and
digital video broad
• casting.
• LTE was first launched by TeliaSonera in Oslo and
Stockholm on December 14, LTE is a technology that
was asked to replace UMTS / HSDPA. LTE is expected
to be standardized globally mobile phone first.
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