4G TECHNOLOGYPRESENTED BY

DEPT OF EIE N.SIREESHA B.VEDAVATHI

CONTENTSHistory of 4G technologyComparison of wireless communication

technologyWhat is 4G?Why 4G is required?Features of 4G TechnologyTechnologies used in 4GTransmission systemKey elements of 4GApplicationsLimitationsConclusion

History of 4G technology

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Comparison of wireless communication technologies

What is 4G?It is 4th generation wireless technology.It will provide a comprehensive IP

solution where voice, data and multimedia can be given to user on “any time , anywhere” basis.

It includes several types of broadband wireless communication system access including cellular telephone system.

It will provide seamless mobility and internet access at a rate of 100 Mbps.

Why 4G is required?Due to substantial growth in overall

number of subscribers.

Due to massive demand of new services like data , audio , image or video .

Features of 4G TECHNOLOGYHigh performanceEasy roamingFully converged servicesLow costMore user friendly devicesEnhanced GPS ServicesScalabilityCrisis Management application

Technology used in 4G OFDM: orthogonal frequency division

multiplexing

UWB: ultra wide band

Smart antennas

IPv6:internet protocol version6

Transmission system

Key Elements of 4G

Application In traffic control.

Multimedia – video services

Telemedicine.

Crisis Management

Virtual Navigation

Limitations Cost is another factor that could hamper

the progress of 4G technology . The equipment required to implement the next-generation network are still very expensive.

A Key challenge facing deployment of 4G technologies is how to make the network architectures compatible with each other. This was one of the unmet goals of 3G.

As regards the operating area, rural areas and many buildings in metropolitan areas are not being served well by existing wireless networks.

Conclusion 4G systems offer to reduce a number of

technologies to a single global standard.

Future networks need to support diverse IP multimedia applications to allow sharing of resources among multiple users.

4G fulfilled the goal of PCC ( personal computing and communication ).

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