VISION OF FUTURE WIRELESS WORLD AND A COMPARISION OF DIFFERENT GENERATION OF MOBILES.

2. Latest Gartner study
Current Facts
 India is 2nd in Cellular Revenue and Connections after
China.
 Total Connection-800 millions
Annual Growth of-21%
 Growth of User-prepaid- 29%
Postpaid-22%
 Total user-Prepaid-717 millions
Postpaid-83 millions

3. Latest Gartner study Contd..
 Cellular market is projected to exceed $37 Billions by
2012.
 Prepaid Users-94%
Postpaid users- 6%
 Revenue growth-Prepaid-21%
Postpaid-15%

6. 1876 First commercial Telephone

7. 1880 - Photophone Transmitter 1880 - Photophone Receiver

8. First Mobile Radio Telephone

9. Cellular Generations
• 1G: Analog cellular networks for voice communication
• 2G: Digital wireless networks, primarily for voice communication;
limited data transmission capability
• 2.5G: Interim step toward 3G in the United States
• 3G: High-speed; mobile; supports video and other rich media;
always-on transmission for e-mail, Web browsing, instant
messaging

10. Mobile System Generations
 First Generation (1G) mobile systems were designed to offer a
single service, i.e., speech.
 Second Generation (2G) mobile systems were also designed
primarily to offer speech with a limited capability to offer data
at low rates.
 Third Generation (3G) mobile systems are expected to offer high-
quality multi-media services and operate in different
environments.
 3G systems are referred to as Universal Mobile
Telecommunications System (UMTS) in Europe and
International Mobile Telecommunications 2000 (IMT2000)
worldwide.

11. Agent Technology
4G
Vision
IP Technology
Reconfigurable
Technology

14. MOBILE COMMUNICATION
DEVELOPEMENT
Analog Systems and Digital systems
• AMPS-1977-Analog system-USA
• NTT-1979-Analog system-Japan
• TACS-1984-UK
• GSM-1992-European system-Germany
• NA-TDMA-1993-USA
• CDMA-1995-USA
• PDC -1994-Japan

15. Regulations
 ITU (International Telecommunications Union), Geneva is responsible for the
World-wide Co-ordination of Telecommunication activities.
 FCC (Federal communications Commission) is responsible for the all the Rules
and Regulations for Cellular Systems
 Europe – ETACS (European Total Access Communication System)-UK System
 USA-AMPS
 JAPAN-NTT
 The three different systems are differ in many parameters like-
- Location of the frequency bands.
- Channel spacing
- Data rate
- Spectral Efficiency
- System capacity

16. SI .NO Parameters USA(AMPS) EUROPE(TACS) JAPAN(NTT)
1 Multiple
access
FDMA FDMA FDMA
2 Channel
spacing
30 KHz 25 KHz 25 KHz
3 Data Rate 10 Kbps 8 Kbps 0.3 Kbps
4 Spectral
efficiency
0.33 Bps/Hz 0.33Bps/Hz 0.012 Bps/Hz
5 capacity 832 Channels 1000 Channels 600 channels

17. Technology and Service affordability
1971-Microprocessor and Minicomputers developed.
 Uses less power
 Size Reduced
 LSI ,VLSI Techniques are used Extensively.
 Mobile Transceiver size reduced.
 Price reduced.
 New advanced features have been introduced.
 Portable and Movable from Place to place.
 Mobility features.