1G, 2G, 3G, 4G AND 5G
GENERATIONS OF WIRELESS
TECHNOLOGY

CONTENTS
1.
2.
4.
3.
INTRODUCTION
1G TECHNOLOGY
2G TECHNOLOGY
MODELS OF 1G &2G
3G TECHNOLOGY
5.
6. 4G TECHNOLOGY
5G TECHNOLOGY
7.
8. APPLICATIONS
COMPARISON
9.

 The wireless is defined in dictionary as “HAVING NO
WIRES”
 In networking terminology, wireless is the term defined
as to describe any computer network where there is no
“physical connection” between sender and reciever.
 In wireless, networks are connected by “RADIO WAVES”
to maintain cummunication between sender and reciever
WHAT IS WIRELESS
TECHNOLOGY?

1G TECHNOLOGY
 1G Refers to the first generation of wireless telephone
technology
 This technology is introduced in 1980s and completed in
1990s
 The speed of 1G was upto 2.5kbps
 It allows voice calls in only one city
 This network uses analog signals
 Advanced mobile phone system (AMPS) was first introduced
in USA

Drawbacks of 1G TECHNOLOGY
 No Security
 Poor Reliability
 Poor Battery life
 Large in Size (Mobile phone)
 Low voice quality

2G Refers to the SECOND GENERATION
It is based on GSM(global system for mobile communication)
It’s data speed was upto 64kbps
Digital signals are used in this technology
2G was launched in finland in the year 1991
2G TECHNOLOGY

Features
 Better quality and capacity
Enabled services such as SMS and MMS (Multimedia Message)
These system are unable handle complex data such as videos.
It used a bandwidth of 30 to 200 KHz.
Drawbacks
 Required strong digital signals to help mobile phones work.
 If there was no network coverage, digital signals weakened.
 Systems were unable to handle complex data like videos.

Wireless Models of 1G & 2G
1G Wireless Systems 2G Wireless Systems

3G TECHNOLOGY
 3G Refers to Third generation
 It was introduced in the year 2000s
 Data transmission speed of 3G is 144kbps - 2Mbps
 Increased bandwidth and data transfer rates
 Send/receive large email messages.

Features of 3G
 Large capacities and broadband capabilties
 High speed web
 More security
 Providing faster communication
 High download speed when compared to 2G
 3D gaming
 Video calling

Drawbacks of 3G
 Expensive fee for 3G license services
 It was challenge to build the infrastructure for 3G
 High bandwidth requirement
 Expensive 3G phones
 Large cell phones

4G GENERATION
 4G technology refers to the fourth generation
 It was started in late 2000s
 Capable of providing 100Mbps-1Gbps speed
 One of the basic term used to describe 4G is Magic
 Much faster than 3G.
 Global mobility support
 Interated wireless solution

Features of 4G
 Extremely high voice quality.
 Easy access to Internet, IM, social networks, streaming media, video calling.
 Higher bandwidth.
Drawbacks
 Battery use is more
 hard to implement
 Expensive equipment to implement next generation network

Difference between 3G and 4G is in data
transfer and signals quality
Technology 3G 4G
Data Transfer Rate 3.1 MB/ sec 100 MB/Sec
Internet services Broadband Ultra Broadband
Mobile - TV Resolution Low High
Bandwidth 5-20 MHz 100 MHz
Frequency 1.6 - 2 GHz 2 -8 GHz
Download and upload 5.8 Mbps 14 Mbps

• Voice Signals Only
• Analogue Cellular Phones
• NMT, AMPS
1G
• Voice & Data Signals
• Digital Fidelity Cellular Phones
• GSM, CDMA, TDMA
2G
• Enhance 2G
• Higher Data Rates
• GPRS, EDGE
2.5G
• Voice , Data & video Signals
• Video Telephony / Internet Surfing
• 3G, W- CDMA, UMTS
3G
• Enhanced 3G / Interoperability Protocol
• High Speed & IP - based
• 4G, Mobile IP
4G

5th GENERATION
 5G technology refers to the short name of fifth generation which was stated from
late 2010s
 Highly supportable to WWWW( World Wide Wireless Web)
 Complete wireless communication with almost no limitations
 Up to 10Gbps data rate - > 10 to 100x speed improvement over 4G and 4.5G
networks.
 Up to 100x number of connected devices per unit area
 Very high capacity

BENEFITS OF 5G
 High capacity, high speed
 Large broad casting of data in Gbps
 Multi-media newspaper, Watching T.V with the best quality(HD)
 Data transmission is faster when compared to previous generations
 Large phone memory, Clarity in audio and video, dailing speed
 5G is more effective and attractive

Technology →
Feature↓
lG 2G 3G 4G 5G
Start/
Deployment
1970 -1980 1990 - 2004 2004-2010 Now
Soon (probably
2020)
Data
Bandwidth
2kbps 64kbps 2Mbps 1Gbps Higher than Gbps
Technology
Analog
Cellular
Technology
Digital
Cellular
Technology
CDMA 2000
(lxRTI,EVDO)
UMTS, EDGE
Wi-Max LTEWi-Fi
WWWW(coming
soon)
Service
Mobile
Telephony
(Voice )
Digital
voice,SMS,
Highercapacit
ypacketized
data
Integrated
high quality
audio, video
anddata
Dynamic Information
access,
Wearabledevices
Dynamic
Information
access,
Wearabledevicesw
ithAlCapabilities
Multiplexing FDMA TDMA,CDMA CDMA CDMA COMA
Switching Circuit
Circuit,
Packet
Packet All Packet All Packet
Core Network PSTN PSTN Packet N/W Internet Internet
Comparasion of Wireless Technology

THANK YOU