1. MOBILE COMMUNICATION SYSTEM

2. 4G wireless: One View
4G is the short name for fourth-generation wireless, the stage of mobile communications that will enable things like IP-based voice, data, gaming services and high quality streamed multimedia on portable devices with cable modem-like transmission speeds.

3. Hyper LAN- set of wireless LAN
1G-First Generation
Speech
2G-Second Generation
SMS , MMS
CDMA , GPRS , EDGE
Voice Mail
3G-Third Generation
Wireless Internet
Video Calling
Mobile TV

4. High transfer rate
Internet access any where
Ability to move around with the same IP address
Utilization of Smart antennas
High resolution Mobile TV

6. TECHNOLOGY USED IN 4G
OFDM
UWB
Smart antennas
IPv6

7. OFDM
Time domain
Space domain
Frequency domain

8. UWB(ULTRA WIDE BAND)
An advanced technology that can be used in 4G technology.
It is typically detected as noise.
It can use any part of the frequency spectrum, which means that it can use frequencies that are currently in use by other radio frequency devices .
It uses a frequency of3.1 to 10.6 Hz.
It uses less power , since it transmits pulse instead of continuous signal.
Special antennas are needed to tune and aim the signal.

9. Smart Antennas Switched Beam Antennas Adaptive Array Antennas
Smart antennas can :
Optimize available power
Increase base station range and coverage
Reuse available spectrum
Increase bandwidth
Lengthen battery life of wireless devices

10. Mobile IPv6 –Keep IP address even if you change access point.
More addresses than current version of IP protocol (Version 4) each device can have own IP
–Keep IP address even if you change access point.
–Presently translate IP with each change because not
enough IP addresses to go around.
IP Core-everything can talk to each other if they speak the same “language”.

11. FEATURES OF 4G Adhoc Networks:
Spontaneous self organization of networks of devices.
Not necessarily connected to internet.
4G will create hybrid wireless networks using Ad Hoc networks.
Form of mesh networking–Very reliable.

12. APPLICATIONS OF 4G Virtual presence Virtual Navigation
Tele-Geoprocessing: GIS,GPS
Tele-Medicine and Education
Crisis Management

13. ADVANTAGES AND DISADVANTAGES OF 4G
• High usability: anytime, anywhere, and with any technology.
• Support for multimedia services at low transmission cost.
•Higher bandwidth, tight network security.
Disadvantages:
The equipment required to implement a next generation network is still very
expensive.
Carriers and providers have to plan carefully to make sure that expenses are kept
realistic.

14. FUTURE
Less expensive
Flexibility
LAN & WAN Technologies

15. CONCLUSION
All totally the best way to help all users is to use 4G as the next wireless system and in totally it is safety and secure for public, this the need that demands the solution.
Today’s wired society is going wireless and if it has problem, 4G is answer.

16. THANK YOU