4G TECHNOLOGY

--- Forthcoming tech. in Wireless Communication

Presented By,ROUSHAN KUMAR

ROLL NO.:-11037BRANCH:-E.C.E.

CONTENTS Introduction. Generations. Comparison Between 3G and 4G. 4G Characteristics. Mobile Services Before 4G. 4G-Technology. Objectives and Uses. SWOT Analysis. Conclusion.

What is 4G???

Now-a-days the goal of many customers is to have PC at one’s palm . To support such powerful systems we need long range, high speed wireless network called 4G.

GenGGenerations

COMPARISON BETWEEN 3G AND 4G:

Technology 3G 4G

Frequency band 1.8 - 2.5GHz 2 - 8GHz

Bandwidth 5-20MHz 5-20MHz

Data rate Up to 2Mbps 100Mbps moving, 1GB stationary Access W-CDMA VSF-OFCDM VSFCDMA

FEC Turbo-codes Concatenated

Switching Circuit/Packet Packet

4G CHARACTERISTICS

Convergence Services—seamless , high-reliable, quality broadband communication ,ubiquitous- connectivity.Broadband Services---Low Cost. ---Wide Coverage Area. ---Wide Variety of Services Capability.

SERVICES PRIOR TO 4G LTE[Long Term Evolution]—UMTS(universal mobile telecomm. Systems)

Objectives : Improving Efficiency. Lowering Costs. Improving Services. Better integration with

other standards. Aim of LTE : Download rate -

100mbps Upload rate-50 mbps.

WIMAX-[Worldwide Interoperability for Microwave Access]

Objective: Low Cost. Low Expense Voice

transport and delivery of services.

Aim: Download data-rate 4 mbps. Upload data-rate 14 mbps.

4G TECHNOLOGY Adaptive Modulation And Coding(AMC).

Adaptive Hybrid ARQ.

Multi In-Multi Out And Orthogonal Frequency-Division Multiplexing(MIMO and OFDM).

Open Distributed AD-HOC Wireless Network.

OBJECTIVES Flexible channel bandwidth—5 MHz to 20 Mhz.

(up to 40 MHz) Developing of 3G applications: MMS(multimedia messaging services).

Video chat. Mobile T.V. HDTV.

SWOT ANALYSIS-4G STRENGTHS: Strong position of telecommunication vendors. Faster data transmissions .

Higher bit-rate . Larger bandwidth.

Personalized multimedia communication tools.

WEAKNESS: No large user community . Divergence between vendors and operators.

No full internet -- limited speed ,bandwidth Highest cost to use and on infrastructure.

OPPORTUNITIES: Evolutionary approach. Sophisticated commercialization

would encourage e-commerce and m-commerce.

Expected that consumers will replace handsets with newer tech.

Desirable higher data capacity rates.

THREATS: Faster rate of growth and developments in other region.

Since 3G is still in market ,it squeezes the market competition in mobile industry.

FUTURE SCOPE4G mobile phone technology promises faster communication Speeds (100 megabits per second), capacity and diverse usage formats. These formats would provide richer content and support for other public networks such as optical fibre and wireless local area networks.

CONCLUSION

Delivers true speeds without wires.

Faster -- more bandwidth.

Completely portable . 3 times faster than 3G . 4G is broadband technology that will give us richer ,pleasurable internet experience.

THANK YOU