3. 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?
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
It allows voice calls in only one city
This network uses analog signals
Advanced mobile phone system (AMPS) was first introduced
in USA
5. Drawbacks of 1G TECHNOLOGY
No Security
Poor Reliability
Poor Battery life
Large in Size (Mobile phone)
Low voice quality
6. 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
7. 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.
9. 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.
10. 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
11. 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
12. 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
13. 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
14. 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
15. • 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
16. 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
17. 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
18. 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
