Wireless technology has progressed through 5 generations. 1G provided analog voice calls at speeds up to 2.5kbps. 2G introduced digital networks and SMS at speeds up to 64kbps. 3G brought higher speeds of 144kbps-2Mbps and enabled smartphones with web and multimedia. 4G increased speeds to 100Mbps-1Gbps and provided mobile broadband. The latest 5G technology provides speeds over 1Gbps and fully wireless communication to support applications like virtual reality with almost no limitations.

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

2. CONTENTS:
1) INTRODUCTION
2) 1G TECHNOOGY
3) 2G TECHNOLOGY
4) MODELS OF 1G&2G
5) 3G TECHNOLOGY
6) 4G TECHNOLOGY
7) 5G TECHNOLOGY
8) SERVICES OF WIRELESS TECHNOLOGY
9) APPLICATIONS
10) EVALUATION OF 1G TO 5G
11) CONCLUSION

3. WHAT IS WIRELESS?
 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 receiver.
 In wireless, networks are connected by “radio waves” or “micro waves” to
maintain communication b.w sender and receiver

4. 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.
 And it allows voice call in only one city.
 This network uses analog signals.
 Advanced mobile phone systems(AMPS) was first introduced in USA

5. 1G mobile phone: figure(1)

6. Drawbacks of 1G:
 No security
 Poor reliability
 Poor battery life
 Large in size (mobile phone)
 Low voice quality

7. 2G TECHNOLOGY
 Similarly, 2G Refers to the SECOND GENERATION.
 And 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 in finland in the year 1991.
 Features:
 Better quality and capacity.
 It enables services such as text Messages, picture messages and
MMS.
 These systems are unable handle complex data such as videos.

8. WIRELESS MODELS OF 1G&2G

9. 3G TECHNOLOGY
 3G refers to third generation
 It was introduced in the year 2000s.
 Data transmission speed of 3G is 144kbps-2Mbps.
 Typically called smart phones and features increased ts bandwidth and data
transfer rates to accommodate web based applications and audio and video
files.

10. Features of 3G:
 Large capacities and broadband capabilities
 High speed web.
 More security
 Providing faster communication.
 High download speed when compared to 2G.
 3D gaming.
 Video calling.

11. Drawbacks of 3G:
 Expensive fee for 3G licenses services
 It was challenge to build the infrastructure for 3G.
 High bandwidth reuirement
 Expensive 3G phones.
 Large cell phones

12. Welcome to the 4G world

13. 4th 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.
 Mobile multimedia
 Anytime anywhere
 Global mobility support
 Integrated wireless solution
Customized personal services
Also known as mobile broadband Everywhere.

14. DRAWBACKS OF 4G:
 Battery use is more.
 Hard to implement
 Expensive equipment required to implement next generation network.
 Need complicated hardware.``

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17. 5th GENERATION:
 5G technology refers to the short name of fifth generation which was started
from late 2010s.
 It is highly supportable to WWWW.
 Complete wireless communication with almost no limitations.
 WWWW(wireless world wide web)

18. BENEFITS OF 5G :
 High capacity , high speed
 Large broad casting of data in Gbps.
 Multi-media news papers ,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 ,Dialing speed.
 5G is more effective and attractive.

19. COMPARISION BETWEEN 4G &5G:

20. H.SAIKIRAN