1. 4G - Mobile communications

2. Overview Where are we? What is 4G? Back ground of 4G
Why we Want to go?
3G Vs 4G
Applications
Advantages and limitations
Conclusion

3. TYPES OF CELLULAR COMMUNICATIONS
1G-First Generation
Speech
2G-Second Generation
SMS , MMS
CDMA , GPRS , EDGE
Voice Mail
3G-Third Generation
Wireless Internet
Video Calling
Mobile TV

4. What is 4g? 4th generation cellular communication. FEATURES:-
High transfer rate. Internet access any where. Ability to move around with the same IP address. Utilization of smart antenna . High resolution mobile TV .

5. Back ground:-
New mobile generations have appeared about every ten years since the first move from 1981 analog (1G) to digital (2G) transmission in This was followed, in 2001, by 3G multi-media support, spread spectrum transmission and at least 200 kbit/s peak bit rate, in 2011/2012 expected to be followed by "real" 4G, which refers to all-Internet Protocol (IP) packet-switched networks giving mobile ultra-broadband (gigabit speed) access.

6. Why we Want to go? High transfer rate Internet access any where
Ability to move around with the same IP address
Utilization of Smart antennas
High resolution Mobile TV

8. 3G Vs 4G Technology 3G 4G Data Transfer Rate 3.1MB /sec 100MB/sec
Internet services
Broadband
Ultra Broadband
Mobile -TV Resolution
Low
High
Bandwidth
MHz
100 +MHz
Frequency
GHZ
2 – 8 GHz
Network Architecture
Wide Area Network
Hybrid Network

9. Applications of 4G Life-Saving: Telemedicine Video Conferencing
Telegeoprocessing: GIS,GPS
Better Usage of Multimedia Applications

10. Advantages and limitations
Higher band width.
Better response time i.e, 10 times more than 3G technology.
Works at 2.6GHz frequency which means better coverage even though it uses the same tower where the receiver and transmitter for 3G is.
More flexible.
LIMITATIONS:
 it more expansive than 3G.
It is less secure i.e.,Obtaining information from everyday people illegally becomes easier.

11. IP + WPAN + WLAN + WMAN + WWAN + any other stragglers = 4G
Conclusion
This is a need which demands a solution. Today’s wired society is going wireless, and it has a problem.4G is the ANSWER.
IP + WPAN + WLAN + WMAN + WWAN + any other stragglers = 4G