4G TECHNOLOGY

Presentation by :

BhuvaneshwariAnd

Purnima

OVERVIEW:

o What is 4G ?o Evolution of 4G o Features o 4G hardware and softwareo Technologieso Applicationso Advantages and Disadvantageso Conclusion

o 1G-First Generation • Speech

o 2G-Second Generation • SMS , MMS• CDMA , GPRS , EDGE• Voice Mail

o 3G-Third Generation • Wireless Internet• Video Calling• Mobile TV

Evolution of Mobile technology :

What is 4G ?

o Fourth Generation of Cellular Communications .

o Beyond 3G .

o Data transfer rate up to 100 Mbps for high mobility and 1 Gbps for low mobility .

What’s new in 4G ?

o IP (Internet Protocol) based mobile systems.

o Entirely packet-switched networks.

o Digital in nature

o Wider Bandwidths 100Mhz

o 10 times faster than current 3G

o Global mobility and service portability.

o User Friendly.

MAGIC :

M : Mobile MultimediaA : Anytime / AnywhereG : Global Mobility SupportI : IntegratedC : Customized Personal Network

4G Hardware :

oUltra Wide Band Networks oSmart Antennas

4G Software :

oSoftware Defined RadiooPacket Layers oPackets

Technology Standards :

• WiMAX ,LTE

• The advantages of LTE are:

(i) 100 Mbps - download & 50 Mbps – upload

(ii) It offers both FDD and TDD duplexing(iii) Uses OFDM

WIMAX:

o WiMax technology might not achieve the required rate in a high-density area .

o useful when it is bundled with IPTV.

o The wireless bandwidth will be roughly 3Mbps/1.5Mbps; but this is nowhere near the 100Mbps/50Mbps that LTE promises

OFDM :

• OFDM stands for Orthogonal Frequency Division Multiplexing.

• It distributes the data over a large number of carriers that are spaced apart at precise frequencies.

How 4G Works ?

• The IP address is based on IPv6.

• IPv4: X . X . X . X (32 bits)example: 216.37.129.9

• IPv6:4 × IPv4 (128 bits)

• example: 216.37.129.9 , 79.23.178.229 , 65.198.2.10 , 192.168.5.120

Home Address

Care of Address

Mobile IP address

Local network address

Applications :

• Virtual Presence

• Virtual Navigation

• Crisis Management Application

• Telegeoprocessing, telemedicine

• Security

Advantages :

• High usability: anytime, anywhere, and with any technology.

• Support for multimedia services at low transmission cost. • Higher bandwidth, tight network security.

Disadvantages :

• Expensive.• Battery uses are more.• Hard to implement• Need complicated hardware.

CONCLUSION

Thank You