2G vs 3G vs 4G - Technology

7/31/2019 2G vs 3G vs 4G - Technology

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PRESENTATION

ON

2G vs 3G vs 4G

SUBJECT: IT FOR MANAGEMENT

BY

SMITHA DABBA02

YOGESH NAIR25

SHEETAL PAWAR

31

PRAVIN KHAIRNAR 20

HARSHAD WADIVKAR 51


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INTRODUCTION

TELECOMMUNICATION

EVOLUTION OF MOBILE MARKET

THE BASIS OF CELLULAR TECHNOLOGY &THE USE OF RADIO SPECTRUM

BANDWIDTH


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MOBILE TELEPHONE SWITCHING OFFICE


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ACCESS TECHNOLOGIES (FDMA, TDMA, CDMA)


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1G

Introduced in Japan in 1979.

The first commercially automated cellular network

Radio signals are analog & modulated to higher frequency,

typically 150 MHz and up.

Features

Limitations


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2G

Launched in 1991 on the GSM standard that uses TDMA.

Uses digital signal

Spectrum:- 800/900 MHz to 1800/1900 MHz

Advantages

Disadvantages


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2.5G

Informal term unlike 2G or 3G

Combines 2g cellular system and General Packet Radio

Services (GPRS)

GPRS has data transmission rates of 28kbps or higher

CDMA200 1x-RTT, EDGE and EGPRS are 2.5gtechnology


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2.5G

Data transmission rates of 144kbps or higher

Slower network speeds than 3G

2.5g uses packet-switching as well as circuit switching

2.5g network can be used on a per-transaction basis ratherthan per-minute-of-use basis.

2.5g supports WAP, MMS, SMS, Mobile games etc.


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CIRCUIT-SWITCHING

Physical path is obtained and dedicated to a singleconnection between two end-points in the network

Ordinary voice phone is circuit-switched

No one else can use the physical lines during that period

It is more reliable but expensive compared to packet-switching


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PACKETSWITCHING


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2.75G (EDGE)

What is EDGE Technology?

Extended version of GSM.

Termed as IMT-SC or Single carrier

History of EDGE

Launched in 2003 in US.

Three time faster than wired dial up modem.

Global mobile data services.


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EDGE TECHNOLOGY

Frequency capability and performance of Edge is more than2G, GSM technology

It helps to connect to the internet

Edge technology supports the packet switching system

EDGE technology has its edge because it can make use ofboth switch circuit technology and packet circuit technology.


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DIFFERENCE BETWEEN GSM & EDGE

GSM

Global System for Mobile

It requires any supplementary

hardware and software

Normal Speed

EDGE

Enhance date rate for GSMevolution

Does not require anysupplementary hardware andsoftware

Provides 3 times faster speedthan GSM


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ADVANTAGES OF EDGE

This triples the gross data rate for GSM Technology.

The access to the internet and wireless access points is easy.

EDGE technology is the only technology that has provided the

MoldCell user to make use of most advance multimedia

services.


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3G

What is 3G and its characteristics

Frequency Bands and Bandwidth.

3G Pricing

Companies providing 3G network.

Issues


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3G AND CHARACTERISTICS

Gateway

IMT-2000

Fast Transfer rate

Network authentication

Compatibility

Uses TDMA and CDMA


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FREQUENCY BAND AND BANDWIDTH

TRAI recommended 3 sets of freq bands: 450 MHz

800 MHz

2.1 GHz

Bandwidth required is 15-20MHz

3G PRICING


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3G PRICING

Base price of Auctioning the Radio Frequency was 1050

crores.

Category A80 crores

(Mumbai and Delhi)

Category B50 crores

(Kolkata and Chennai)

Other cities- 15 crores


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COMPANIES PROVIDING 3G NETWORKS


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4G

4G refers to 4th Generation of Cellular wireless tech.

Specified In 2009 by IMT-Advanced

Speeds ranging from Min 100Mbps upto 1Gbps

Following are 2 eg. Many others still developing WiMAX

LTE (Long term Evolution)

Works on OFDM (Orthogonal Frequency Division

Multiplexing)
http://4g%20lte%20more%20than%20just%20speed.mp4/http://4g%20lte%20more%20than%20just%20speed.mp4/


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4G USES AND APPLICATION

High Network capacity

Seamless Connectivity, Global roaming

High Quality Service eg. HD live Gaming, live audio,

HDTV video ,Mobile TV etc. All IP, packet Switched Network

User Behavior Based data


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WIMAX (WORLDWIDE INTEROPERABILITY FOR

MICROWAVE ACCESS)

IP based wireless Broadband over long distance Alternative to Cable modem and DSL

Connects Wifi to other networks like internet.

VoIP, IPTV Service(Triple Play)

Speed upto 70 Mbps, Spectrum 3.5Ghz

QOS Support, Robust Security, Mobility Support

Types:

Fixed WiMAX (IEEE 802.16-2004)

Mobile WiMAX (IEEE 802.16e-2005)
http://www.wimaxforum.org/


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FIXED WIMAX ARCHITECTURE


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MOBILE WIMAX ARCHITECTURE


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COMPARISON BETWEEN 2G, 3G, 4GGenera

tion

Data Type Spectrum Speed Technol

ogy

Time

Period

Features

1G Analog 150 MHz &

above

14.4Kbps

(Peak)

AMPS,

NMT,

TACS

1970-

1980

Wireless Phones

used only for

Voice.

2G DigitalNarrowband

Circuit data

800/900MHz to

1800/1900

MHz

9.6/14.4kbps TDMA,CDMA

1990-2000

Multi users onsame channel ie.

Multiplexing

Along voice data

transfer like SM

2.5G Packet Data 800/900

MHz to1800/1900

MHz

171.2Kbps

(Peak)

GPRS 2001-

2004

Multimedia Data

Transfer, Phoneweb browser.


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COMPARISON BETWEEN 2G, 3G, 4GGen

erati

on

Data Type Spectrum Speed Technolo

gy

Time

Period

Features

3G Digital

Broadband

Packet Data

400 MHz to

2.1 GHz

14.4Mbps

(Peak),

3.1Mbps

CDMA

2000,

UMTS,

HSPA.

2006-

2010

Portability

across device

(Telephone

PDA, etc),

HighThroughput

speed.

4G Digital

Broadband All

packet IP

800 MHz to

2.6 GHz

100-

300Mbps

(Peak),

3-5Mbps

Wimax,

LTE

2009

onwards

HD streaming

Increased

portability an

speed, Worldroaming

possibility.


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ANY QUESTIONS???

THANK YOU.!

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2G vs 3G vs 4G - Technology